eessppeelllloo/image-sequencer
1
0
Fork 0
mirror of https://github.com/publiclab/image-sequencer.git synced 2025-12-13 20:00:05 +01:00
Code Issues Packages Projects Releases Wiki Activity

Resolve Conflicts; Update DecodeQr Module

Browse Source
This commit is contained in:
Chinmay Pandhare
2017-07-29 04:25:50 +05:30
parent 29cb36dd31 9208216f99
commit e6f1ff3243
27 changed files with 41289 additions and 507 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
.gitignore vendored
View File

@@ -34,3 +34,5 @@ node_modules
*.swp
todo.txt
test.js
output.txt

40486
.source.1501282351926.0.9292555536537093.html Normal file
View File

File diff suppressed because one or more lines are too long

259
CONTRIBUTING.md Normal file
View File

@@ -0,0 +1,259 @@
Contributing to Image Sequencer
===
Happily accepting pull requests; to edit the core library, modify files in `./src/`. To build, run `npm install` followed by `grunt build`.
Most contribution (we imagine) would be in the form of API-compatible modules, which need not be directly included.
## Contributing modules
Any module must look like this :
```js
module.exports = function ModuleName(options,UI) {
options = options || {};
options.title = "Title of the Module";
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw(options.step);
var output = /*do something with the input*/ ;
this.output = output;
options.step.output = output.src;
callback();
UI.onComplete(options.step);
}
return {
options: options,
draw: draw,
output: output,
UI: UI
}
}
```
### options
The object `options` stores some important information. This is how you can accept
input from users. If you require a variable "x" from the user and the user passes
it in, you will be able to access it as `options.x`.
Options also has some in-built properties. The `options.inBrowser` boolean denotes
whether your module is being run on a browser.
### draw()
The draw method is run every time the step is `run` using `sequencer.run()`.
So any calculations must go **into** the `draw()` method's definition.
What is not in the draw method, but is in the `module.exports` is executed only
when the step is added. So whatever external npm modules are to be loaded, or
constant definitions must be done **outside** the `draw()` method's definition.
`draw()` receives two arguments - `input` and `callback` :
* `input` is an object which is essentially the output of the previous step.
```js
input = {
src: "<$DataURL>",
format: "<png|jpeg|gif>"
}
```
* `callback` is a function which is responsible to tell the sequencer that the
step has been "drawn".
When you have done your calculations and produced an image output, you are required
to set `this.output` to an object similar to what the input object was, call
`callback()`, and set `options.step.output` equal to the output DataURL
### UI Methods
The module is responsible to emit various events for the UI to capture. There are
four events in all:
* `UI.onSetup(options.step)` must be emitted when the module is added. So it must be emitted outside the draw method's definition as shown above.
* `UI.onDraw(options.step)` must be emitted whenever the `draw()` method is called. So it should ideally be the first line of the definition of the `draw` method.
* `UI.onComplete(options.step)` must be emitted whenever the output of a draw call
is ready. An argument, that is the DataURL of the output image must be passed in.
* `UI.onRemove(options.step)` is emitted automatically and the module should not emit it.
To add a module to Image Sequencer, it must have the following method; you can wrap an existing module to add them:
* `module.draw()`
The `draw(input,callback)` method should accept an `input` parameter, which will be an object of the form:
```js
input = {
src: "datauri here",
format: "jpeg/png/etc"
}
```
## options.title
For display in the web-based UI, each module may also have a title `options.title`.
### Module example
See existing module `green-channel` for an example: https://github.com/publiclab/image-sequencer/tree/master/src/modules/GreenChannel/Module.js
For help integrating, please open an issue.
****
## Development
Notes on development next steps:
### UI
* [ ] add createUserInterface() which is set up by default to draw on ImageBoardUI, but could be swapped for nothing, or an equiv. lib
* [ ] it could create the interface and use event listeners like module.on('draw', fn()); to update the interface
* [ ] spinners before panels are complete
* [ ] is there a module for generating forms from parameters?
* [ ] click to expand for all images
* [ ] `ImageSequencer.Renderer` class to manage image output formats and adapters
* [ ] remove step
* [ ] output besides an image -- like `message(txt)` to display to the step's UI
### Modularization
* [ ] remotely includable modules, not compiled in -- see plugin structures in other libs
* [x] ability to start running at any point -- already works?
* [x] commandline runnability?
* [x] Make available as browserified OR `require()` includable...
* [ ] standardize panel addition with submodule that offers Panel.display(image)
* [ ] allow passing data as data-uri or Image object, or stream, or ndarray or ImageData array, if both of neighboring pair has ability?
* see https://github.com/jywarren/image-sequencer/issues/1
* [ ] ...could we directly include package.json for module descriptions? At least as a fallback.
* [ ] (for node-and-line style UIs) non-linear sequences with Y-splitters
* [ ] `sequencer.addModule('path/to/module.js')` style module addition -- also to avoid browserifying all of Plotly :-P
* [x] remove step
### Testing
* [x] tests - modules headless; unit tests
* [ ] comparisons with diff
* [ ] testing a module's promised functionality: each module could offer before/after images as part of their API; by running the module on the before image, you should get exactly the after image, comparing with an image diff
### Use cases
* [ ] make an Infragram module that accepts a math expression
### Bugs
* [x] BUG: this doesn't work for defaults: imageboard.loadImage('examples/grid.png', function() {});
* we should make defaults a config of the first module
****
## Module Candidates
* https://github.com/linuxenko/rextract.js
* https://www.npmjs.com/package/histogram
* https://github.com/hughsk/flood-fill
* https://www.npmjs.com/package/blink-diff
* smaller and faster: https://www.npmjs.com/package/@schornio/pixelmatch
* https://github.com/yahoo/pngjs-image has lots of useful general-purpose image getters like `image.getLuminosityAtIndex(idx)`
* some way to add in a new image (respecting alpha) -- `add-image` (with blend mode, default `normal`?)
* https://github.com/yuta1984/CannyJS - edge detection
* http://codepen.io/taylorcoffelt/pen/EsCcr - more edge detection
## Ideas
* https://github.com/vicapow/jsqrcode
* https://github.com/jadnco/whirl - scrubbable image sequence player
* non graphics card GL functions could be shimmed with https://github.com/Overv/JSGL
* or this: https://github.com/stackgl/headless-gl
* https://github.com/mattdesl/fontpath-simple-renderer
* output in animated Gif? as a module
### Referencing earlier states
Complex sequences with masking could require accessing previous states (or nonlinearity):
* flood-fill an area
* select only the flooded area
* roundabout: lighten everything to <50%, then flood-fill with black? Not 100% reliable.
* roundabout 2: `flood fill`, then `blink-diff` with original
* then add step which recovers original image, repeat `flood-fill`/`blink-diff` for second region
* reference above masked states in a `mask` module, with `maskModule.draw(image, { getMask: function() { return maskImg } })`
****
**Notes:**
`pattern-fill` module to use patterns in JS canvas:
```js
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
var img=document.getElementById("lamp");
var pat=ctx.createPattern(img,"repeat");
ctx.rect(0,0,150,100);
ctx.fillStyle=pat;
ctx.fill();
```
Masking:
```js
ctx.save();
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(160, 600);
ctx.rect(0, 0, 160, 600);
ctx.closePath();
ctx.clip();
ctx.drawImage(img, 0, 0);
ctx.restore();
```
****
## UI notes:
* visual nodes-and-lines UI: https://github.com/flowhub/the-graph
* https://flowhub.github.io/the-graph/examples/demo-simple.html
```js
settings: {
'threshold': {
type: 'slider',
label: 'Threshold',
default: 50,
min: 0,
max: 100
},
'colors': {
type: 'select',
label: 'Colors',
options: [
{ name: '0', value: '0', default: true },
{ name: '1', value: '1' },
{ name: '2', value: '2' }
]
}
}
```
Possible web-based commandline interface: https://hyper.is/?
### Path cutting
* threshold
* vectorize
* edge detect
* direction find (vectorize and colorize)

284
README.md
View File

@@ -26,6 +26,14 @@ It is also for prototyping some other related ideas:
* [Basic example](https://jywarren.github.io/image-sequencer/)
* [NDVI example](https://jywarren.github.io/image-sequencer/examples/ndvi/) - related to [Infragram.org](http://infragram.org)
## Jump to:
* [Quick Usage](#quick-usage)
* [Classic Usage](#classic-usage)
* [Method Chaining](#method-chaining)
* [Multiple Images](#multiple-images)
* [Creating a User Interface](#creating-a-user-interface)
## Quick Usage
Image Sequencer can be used to run modules on an HTML Image Element using the
@@ -68,11 +76,26 @@ a name and an image. The method also accepts an optional callback.
```js
sequencer.loadImage(image_src,optional_callback);
```
On `Node.js` the `image_src` may be a DataURI or a local path. On browsers, it
must be a DatURI (or 'selector to image' -- Work in Progress)
On `Node.js` the `image_src` may be a DataURI or a local path or a URL.
return value: **`sequencer`** (To allow method chaining)
On browsers, it may be a DatURI, a local image or a URL (Unless this violates
CORS Restrictions). To sum up, these are accepted:
* Images in the same domain (or directory - for a local implementation)
* CORS-Proof images in another domain.
* DataURLs
return value: **none** (A callback should be used to ensure the image gets loaded)
The callback is called within the scope of a the sequencer. For example:
(addSteps is defined later)
```js
sequencer.loadImage('SRC',function(){
this.addSteps('module-name');
});
```
The `this` refers to all the images added in the parent `loadImages` function only.
In this case, only `'SRC'`.
### Adding steps to the image
@@ -156,6 +179,7 @@ return value: **`sequencer`** (To allow method chaining)
## Method Chaining
Methods can be chained on the Image Sequencer:
* loadImage()/loadImages() can only terminate a chain.
* run() can not be in the middle of the chain.
* If the chain starts with loadImage() or loadImages(), the following methods are
applied only to the newly loaded images.
@@ -164,9 +188,11 @@ be of the form "image<number>". For ex: "image1", "image2", "image3", etc.
Valid Chains:
```js
sequencer.loadImage('red').addSteps('invert').run(function(out){
//do something with otuput.
});
sequencer.loadImage('red',function(){
this.addSteps('invert').run(function(out){
//do something with ouptut.
});
})
sequencer.addSteps(['ndvi-red','invert']).run();
et cetra.
```
@@ -209,7 +235,7 @@ with each image. This is a string literal.
});
```
return value: **`sequencer`** (To allow method chaining)
return value: **none**
### Adding Steps on Multiple Images
@@ -344,10 +370,10 @@ How to define these functions:
```js
sequencer.setUI({
onSetup: function() {},
onDraw: function() {},
onComplete: function(output) {},
onRemove: function() {}
onSetup: function(step) {},
onDraw: function(step) {},
onComplete: function(step) {},
onRemove: function(step) {}
});
```
@@ -357,220 +383,40 @@ the `setUI` method will only affect the modules added after `setUI` is called.
The `onComplete` event is passed on the output of the module.
In the scope of all these events, the following variables are present, which
may be used in generating the UI:
* The object `identity`
```
identity = {
stepName: "Name of the Step",
stepID: "A unique ID given to the step",
imageName: "The name of the image to which the step is added."
}
```
* The variable `options.inBrowser` which is a Boolean and is `true` if the client is a browser and `false` otherwise.
Image Sequencer provides a namespace `step` for the purpose of UI Creation in
the scope of these definable function. This namespace has the following
predefined properties:
Note: `identity.imageName` is the "name" of that particular image. This name can be specified
while loading the image via `sequencer.loadImage("name","SRC")`. If not specified,
the name of a loaded image defaults to a name like "image1", "image2", et cetra.
* `step.name` : (String) Name of the step
* `step.ID` : (Number) An ID given to every step of the sequencer, unique throughout.
* `step.imageName` : (String) Name of the image the step is applied to.
* `step.output` : (DataURL String) Output of the step.
* `step.inBrowser` : (Boolean) Whether the client is a browser or not
## Contributing
In addition to these, one might define their own properties, which shall be
accessible across all the event scopes of that step.
Happily accepting pull requests; to edit the core library, modify files in `/src/`. To build, run `npm install` and `grunt build`.
### Contributing modules
Most contribution (we imagine) would be in the form of API-compatible modules, which need not be directly included.
#### draw()
To add a module to Image Sequencer, it must have the following method; you can wrap an existing module to add them:
* `module.draw()`
The `draw(input,callback)` method should accept an `input` parameter, which will be an object of the form:
For example :
```js
input = {
src: "datauri here",
format: "jpeg/png/etc"
}
```
The `image` object is essentially the output of the previous step.
The draw method must, when it is complete, pass the output image to the method `this.output = modified_input`, which will send the output to the next module in the chain. For example:
```js
function draw(image) {
// do some stuff with the image
this.output = image;
callback();
}
```
#### Title
For display in the web-based UI, each module may also have a title like `options.title`.
#### Module example
See existing module `green-channel` for an example: https://github.com/jywarren/image-sequencer/tree/master/src/modules/GreenChannel.js
For help integrating, please open an issue.
****
## Development
Notes on development next steps:
### UI
* [ ] add createUserInterface() which is set up by default to draw on ImageBoardUI, but could be swapped for nothing, or an equiv. lib
* [ ] it could create the interface and use event listeners like module.on('draw', fn()); to update the interface
* [ ] spinners before panels are complete
* [ ] is there a module for generating forms from parameters?
* [ ] click to expand for all images
* [ ] `ImageSequencer.Renderer` class to manage image output formats and adapters
* [ ] remove step
* [ ] output besides an image -- like `message(txt)` to display to the step's UI
### Modularization
* [ ] remotely includable modules, not compiled in -- see plugin structures in other libs
* [x] ability to start running at any point -- already works?
* [x] commandline runnability?
* [x] Make available as browserified OR `require()` includable...
* [ ] standardize panel addition with submodule that offers Panel.display(image)
* [ ] allow passing data as data-uri or Image object, or stream, or ndarray or ImageData array, if both of neighboring pair has ability?
* see https://github.com/jywarren/image-sequencer/issues/1
* [ ] ...could we directly include package.json for module descriptions? At least as a fallback.
* [ ] (for node-and-line style UIs) non-linear sequences with Y-splitters
* [ ] `sequencer.addModule('path/to/module.js')` style module addition -- also to avoid browserifying all of Plotly :-P
* [x] remove step
### Testing
* [ ] tests - modules headless; unit tests
* [ ] comparisons with diff
* [ ] testing a module's promised functionality: each module could offer before/after images as part of their API; by running the module on the before image, you should get exactly the after image, comparing with an image diff
### Use cases
* [ ] make an Infragram module that accepts a math expression
### Bugs
* [x] BUG: this doesn't work for defaults: imageboard.loadImage('examples/grid.png', function() {});
* we should make defaults a config of the first module
****
## Module Candidates
* https://github.com/linuxenko/rextract.js
* https://www.npmjs.com/package/histogram
* https://github.com/hughsk/flood-fill
* https://www.npmjs.com/package/blink-diff
* smaller and faster: https://www.npmjs.com/package/@schornio/pixelmatch
* https://github.com/yahoo/pngjs-image has lots of useful general-purpose image getters like `image.getLuminosityAtIndex(idx)`
* some way to add in a new image (respecting alpha) -- `add-image` (with blend mode, default `normal`?)
* https://github.com/yuta1984/CannyJS - edge detection
* http://codepen.io/taylorcoffelt/pen/EsCcr - more edge detection
## Ideas
* https://github.com/vicapow/jsqrcode
* https://github.com/jadnco/whirl - scrubbable image sequence player
* non graphics card GL functions could be shimmed with https://github.com/Overv/JSGL
* or this: https://github.com/stackgl/headless-gl
* https://github.com/mattdesl/fontpath-simple-renderer
* output in animated Gif? as a module
### Referencing earlier states
Complex sequences with masking could require accessing previous states (or nonlinearity):
* flood-fill an area
* select only the flooded area
* roundabout: lighten everything to <50%, then flood-fill with black? Not 100% reliable.
* roundabout 2: `flood fill`, then `blink-diff` with original
* then add step which recovers original image, repeat `flood-fill`/`blink-diff` for second region
* reference above masked states in a `mask` module, with `maskModule.draw(image, { getMask: function() { return maskImg } })`
****
**Notes:**
`pattern-fill` module to use patterns in JS canvas:
```js
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
var img=document.getElementById("lamp");
var pat=ctx.createPattern(img,"repeat");
ctx.rect(0,0,150,100);
ctx.fillStyle=pat;
ctx.fill();
```
Masking:
```js
ctx.save();
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(160, 600);
ctx.rect(0, 0, 160, 600);
ctx.closePath();
ctx.clip();
ctx.drawImage(img, 0, 0);
ctx.restore();
```
****
## UI notes:
* visual nodes-and-lines UI: https://github.com/flowhub/the-graph
* https://flowhub.github.io/the-graph/examples/demo-simple.html
```js
settings: {
'threshold': {
type: 'slider',
label: 'Threshold',
default: 50,
min: 0,
max: 100
sequencer.setUI({
onSetup: function(step){
// Create new property "step.image"
step.image = document.createElement('img');
document.body.append(step.image);
},
'colors': {
type: 'select',
label: 'Colors',
options: [
{ name: '0', value: '0', default: true },
{ name: '1', value: '1' },
{ name: '2', value: '2' }
]
onComplete: function(step){
// Access predefined "step.output" and user-defined "step.image"
step.image.src = step.output;
},
onRemove: function(step){
// Access user-defined "step.image"
step.image.remove();
}
}
});
```
Possible web-based commandline interface: https://hyper.is/?
### Path cutting
* threshold
* vectorize
* edge detect
* direction find (vectorize and colorize)
Note: `identity.imageName` is the "name" of that particular image. This name can
be specified while loading the image via `sequencer.loadImage("name","SRC")`. If
not specified, the name of a loaded image defaults to a name like "image1",
"image2", et cetra.

247
dist/image-sequencer.js vendored
View File

@@ -37117,11 +37117,14 @@ function AddStep(ref, image, name, o) {
o.container = o_.container || ref.options.selector;
o.image = image;
var UI = ref.UI({
stepName: o.name,
stepID: o.number,
imageName: o.image
});
o.step = {
name: o.name,
ID: o.number,
imageName: o.image,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var UI = ref.events;
var module = ref.modules[name](o,UI);
ref.images[image].steps.push(module);
@@ -37343,9 +37346,7 @@ ImageSequencer = function ImageSequencer(options) {
formatInput = require('./FormatInput'),
images = {},
inputlog = [],
UI;
setUI();
events = require('./UserInterface')();
// if in browser, prompt for an image
// if (options.imageSelect || options.inBrowser) addStep('image-select');
@@ -37370,7 +37371,8 @@ ImageSequencer = function ImageSequencer(options) {
function removeStep(image,index) {
//remove the step from images[image].steps and redraw remaining images
if(index>0) {
images[image].steps[index].UI.onRemove();
thisStep = images[image].steps[index];
thisStep.UI.onRemove(thisStep.options.step);
images[image].steps.splice(index,1);
}
//tell the UI a step has been removed
@@ -37434,17 +37436,15 @@ ImageSequencer = function ImageSequencer(options) {
function loadImages() {
var args = [];
var sequencer = this;
for (var arg in arguments) args.push(copy(arguments[arg]));
var json_q = formatInput.call(this,args,"l");
inputlog.push({method:"loadImages", json_q:copy(json_q)});
var loadedimages = this.copy(json_q.loadedimages);
// require('./LoadImage')(this,i,json_q.images[i]);
for (var i in json_q.images)
require('./LoadImage')(this,i,json_q.images[i])
json_q.callback();
return {
var ret = {
name: "ImageSequencer Wrapper",
sequencer: this,
addSteps: this.addSteps,
@@ -37455,6 +37455,19 @@ ImageSequencer = function ImageSequencer(options) {
setUI: this.setUI,
images: loadedimages
};
function load(i) {
if(i==loadedimages.length) {
json_q.callback.call(ret);
return;
}
var img = loadedimages[i];
require('./LoadImage')(sequencer,img,json_q.images[img],function(){
load(++i);
});
}
load(0);
}
function replaceImage(selector,steps,options) {
@@ -37462,9 +37475,8 @@ ImageSequencer = function ImageSequencer(options) {
return require('./ReplaceImage')(this,selector,steps);
}
function setUI(_UI) {
UI = require('./UserInterface')(_UI,options);
return UI;
function setUI(UI) {
this.events = require('./UserInterface')(UI);
}
return {
@@ -37474,7 +37486,7 @@ ImageSequencer = function ImageSequencer(options) {
inputlog: inputlog,
modules: modules,
images: images,
UI: UI,
events: events,
//user functions
loadImages: loadImages,
@@ -37508,11 +37520,14 @@ function InsertStep(ref, image, index, name, o) {
if(index==-1) index = ref.images[image].steps.length;
var UI = ref.UI({
stepName: o.name,
stepID: o.number,
imageName: o.image
});
o.step = {
name: o.name,
ID: o.number,
imageName: o.image,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var UI = ref.events;
var module = ref.modules[name](o,UI);
ref.images[image].steps.splice(index,0,module);
@@ -37524,49 +37539,102 @@ function InsertStep(ref, image, index, name, o) {
module.exports = InsertStep;
},{}],116:[function(require,module,exports){
function LoadImage(ref, name, src) {
function CImage(src) {
var datauri = (ref.options.inBrowser || src.substring(0,11) == "data:image/")?(src):require('urify')(src);
function LoadImage(ref, name, src, main_callback) {
function makeImage(datauri) {
var image = {
src: datauri,
format: datauri.split(':')[1].split(';')[0].split('/')[1]
}
return image;
}
function CImage(src, callback) {
var datauri;
if (!!src.match(/^data:/i)) {
datauri = src;
callback(datauri);
}
else if (!ref.options.inBrowser && !!src.match(/^https?:\/\//i)) {
require( src.match(/^(https?):\/\//i)[1] ).get(src,function(res){
var data = '';
var contentType = res.headers['content-type'];
res.setEncoding('base64');
res.on('data',function(chunk) {data += chunk;});
res.on('end',function() {
callback("data:"+contentType+";base64,"+data);
});
});
}
else if (ref.options.inBrowser) {
var ext = src.split('.').pop();
var image = document.createElement('img');
var canvas = document.createElement('canvas');
var context = canvas.getContext('2d');
image.onload = function() {
canvas.width = image.naturalWidth;
canvas.height = image.naturalHeight;
context.drawImage(image,0,0);
datauri = canvas.toDataURL(ext);
callback(datauri);
}
image.src = src;
}
else {
datauri = require('urify')(src);
callback(datauri);
}
}
function loadImage(name, src) {
var step = {
name: "load-image",
ID: ref.options.sequencerCounter++,
imageName: name,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var image = {
src: src,
steps: [{
options: {
id: ref.options.sequencerCounter++,
id: step.ID,
name: "load-image",
title: "Load Image"
title: "Load Image",
step: step
},
UI: ref.UI({
stepName: "load-image",
stepID: ref.options.sequencerCounter++,
imageName: name
}),
UI: ref.events,
draw: function() {
UI.onDraw(options.step);
if(arguments.length==1){
this.output = CImage(arguments[0]);
options.step.output = this.output;
UI.onComplete(options.step);
return true;
}
else if(arguments.length==2) {
this.output = CImage(arguments[0]);
options.step.output = this.output;
arguments[1]();
UI.onComplete(options.step);
return true;
}
return false;
},
output: CImage(src)
}]
};
CImage(src, function(datauri) {
var output = makeImage(datauri);
ref.images[name] = image;
ref.images[name].steps[0].UI.onSetup();
ref.images[name].steps[0].UI.onDraw();
ref.images[name].steps[0].UI.onComplete(image.steps[0].output.src);
var loadImageStep = ref.images[name].steps[0];
loadImageStep.output = output;
loadImageStep.options.step.output = loadImageStep.output.src;
loadImageStep.UI.onSetup(loadImageStep.options.step);
loadImageStep.UI.onDraw(loadImageStep.options.step);
loadImageStep.UI.onComplete(loadImageStep.options.step);
main_callback();
return true;
});
}
return loadImage(name,src);
@@ -37677,75 +37745,69 @@ module.exports = Run;
},{}],120:[function(require,module,exports){
/*
* Default UI for each image-sequencer module
* User Interface Handling Module
*/
module.exports = function UserInterface(UI,options) {
return function userInterface(identity) {
module.exports = function UserInterface(events = {}) {
var UI = UI || {};
UI.onSetup = UI.onSetup || function() {
if(options.ui == false) {
events.onSetup = events.onSetup || function(step) {
if(step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Create and append an HTML Element
console.log("Added Step \""+identity.stepName+"\" to \""+identity.imageName+"\".");
console.log("Added Step \""+step.name+"\" to \""+step.imageName+"\".");
}
else {
// Create a NodeJS Object
console.log('\x1b[36m%s\x1b[0m',"Added Step \""+identity.stepName+"\" to \""+identity.imageName+"\".");
console.log('\x1b[36m%s\x1b[0m',"Added Step \""+step.name+"\" to \""+step.imageName+"\".");
}
}
UI.onDraw = UI.onDraw || function() {
if (options.ui == false) {
events.onDraw = events.onDraw || function(step) {
if (step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Overlay a loading spinner
console.log("Drawing Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log("Drawing Step \""+step.name+"\" on \""+step.imageName+"\".");
}
else {
// Don't do anything
console.log('\x1b[33m%s\x1b[0m',"Drawing Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log('\x1b[33m%s\x1b[0m',"Drawing Step \""+step.name+"\" on \""+step.imageName+"\".");
}
}
UI.onComplete = UI.onComplete || function(output) {
if (options.ui == false) {
events.onComplete = events.onComplete || function(step) {
if (step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Update the DIV Element
// Hide the laoding spinner
console.log("Drawn Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log("Drawn Step \""+step.name+"\" on \""+step.imageName+"\".");
}
else {
// Update the NodeJS Object
console.log('\x1b[32m%s\x1b[0m',"Drawn Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log('\x1b[32m%s\x1b[0m',"Drawn Step \""+step.name+"\" on \""+step.imageName+"\".");
}
}
UI.onRemove = UI.onRemove || function(callback) {
if(options.ui == false){
events.onRemove = events.onRemove || function(step) {
if(step.ui == false){
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Remove the DIV Element
console.log("Removing Step \""+identity.stepName+"\" of \""+identity.imageName+"\".");
console.log("Removing Step \""+step.name+"\" of \""+step.imageName+"\".");
}
else {
// Delete the NodeJS Object
console.log('\x1b[31m%s\x1b[0m',"Removing Step \""+identity.stepName+"\" of \""+identity.imageName+"\".");
console.log('\x1b[31m%s\x1b[0m',"Removing Step \""+step.name+"\" of \""+step.imageName+"\".");
}
}
return UI;
}
return events;
}
@@ -37809,12 +37871,12 @@ module.exports = function Crop(input,options,callback) {
module.exports = function CropModule(options,UI) {
options = options || {};
options.title = "Crop Image";
UI.onSetup();
UI.onSetup(options.step);
var output
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
require('./Crop')(input,options,function(out,format){
@@ -37822,7 +37884,8 @@ module.exports = function Crop(input,options,callback) {
src: out,
format: format
}
UI.onComplete(out);
options.step.output = out;
UI.onComplete(options.step);
callback();
});
@@ -37880,14 +37943,17 @@ module.exports = function DoNothing(options,UI) {
module.exports = function DoNothing(options,UI) {
options = options || {};
options.title = "Do Nothing";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
this.output = input;
options.step.output = this.output.src;
callback();
UI.onComplete(this.output.src);
UI.onComplete(options.step);
}
return {
@@ -37906,12 +37972,12 @@ module.exports = function DoNothingPix(options,UI) {
options = options || {};
options.title = "Do Nothing with pixels";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -37919,7 +37985,8 @@ module.exports = function DoNothingPix(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype}
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,
@@ -37948,12 +38015,12 @@ module.exports = function GreenChannel(options,UI) {
options = options || {};
options.title = "Green channel only";
options.description = "Displays only the green channel of an image";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -37961,7 +38028,8 @@ module.exports = function GreenChannel(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,
@@ -37991,14 +38059,14 @@ module.exports = function GreenChannel(options,UI) {
options = options || {};
options.title = "Invert Colors";
options.description = "Inverts the colors of the image";
UI.onSetup();
UI.onSetup(options.step);
var output;
//function setup() {} // optional
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -38006,7 +38074,8 @@ module.exports = function GreenChannel(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,
@@ -38035,12 +38104,12 @@ module.exports = function NdviRed(options,UI) {
options = options || {};
options.title = "NDVI for red-filtered cameras (blue is infrared)";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -38050,7 +38119,8 @@ module.exports = function NdviRed(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,
@@ -38075,12 +38145,12 @@ module.exports = function SegmentedColormap(options,UI) {
options = options || {};
options.title = "Segmented Colormap";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -38091,7 +38161,8 @@ module.exports = function SegmentedColormap(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,
@@ -38217,7 +38288,7 @@ module.exports = function PixelManipulation(image, options) {
// but node modules and their documentation are essentially arcane on this point
var chunks = [];
var totalLength = 0;
var r = savePixels(pixels, options.format);
var r = savePixels(pixels, options.format, {quality: 100});
r.on('data', function(chunk){
totalLength += chunk.length;

BIN
examples/red.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 277 B

BIN
examples/test.gif Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 12 KiB

1
examples/test.gif.js Normal file
View File

File diff suppressed because one or more lines are too long

1
examples/test.png.js Normal file
View File

File diff suppressed because one or more lines are too long

4
package.json
View File

@@ -1,8 +1,8 @@
{
"name": "image-sequencer",
"version": "0.0.1",
"version": "0.1.0",
"description": "A modular JavaScript image manipulation library modeled on a storyboard.",
"main": "dist/image-sequencer.js",
"main": "src/ImageSequencer.js",
"scripts": {
"test": "tape test/*.js | tap-spec; browserify test/image-sequencer.js test/chain.js | tape-run --render=\"tap-spec\""
},

13
src/AddStep.js
View File

@@ -8,11 +8,14 @@ function AddStep(ref, image, name, o) {
o.container = o_.container || ref.options.selector;
o.image = image;
var UI = ref.UI({
stepName: o.name,
stepID: o.number,
imageName: o.image
});
o.step = {
name: o.name,
ID: o.number,
imageName: o.image,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var UI = ref.events;
var module = ref.modules[name](o,UI);
ref.images[image].steps.push(module);

35
src/ImageSequencer.js
View File

@@ -42,9 +42,7 @@ ImageSequencer = function ImageSequencer(options) {
formatInput = require('./FormatInput'),
images = {},
inputlog = [],
UI;
setUI();
events = require('./UserInterface')();
// if in browser, prompt for an image
// if (options.imageSelect || options.inBrowser) addStep('image-select');
@@ -69,7 +67,8 @@ ImageSequencer = function ImageSequencer(options) {
function removeStep(image,index) {
//remove the step from images[image].steps and redraw remaining images
if(index>0) {
images[image].steps[index].UI.onRemove();
thisStep = images[image].steps[index];
thisStep.UI.onRemove(thisStep.options.step);
images[image].steps.splice(index,1);
}
//tell the UI a step has been removed
@@ -133,17 +132,15 @@ ImageSequencer = function ImageSequencer(options) {
function loadImages() {
var args = [];
var sequencer = this;
for (var arg in arguments) args.push(copy(arguments[arg]));
var json_q = formatInput.call(this,args,"l");
inputlog.push({method:"loadImages", json_q:copy(json_q)});
var loadedimages = this.copy(json_q.loadedimages);
// require('./LoadImage')(this,i,json_q.images[i]);
for (var i in json_q.images)
require('./LoadImage')(this,i,json_q.images[i])
json_q.callback();
return {
var ret = {
name: "ImageSequencer Wrapper",
sequencer: this,
addSteps: this.addSteps,
@@ -154,6 +151,19 @@ ImageSequencer = function ImageSequencer(options) {
setUI: this.setUI,
images: loadedimages
};
function load(i) {
if(i==loadedimages.length) {
json_q.callback.call(ret);
return;
}
var img = loadedimages[i];
require('./LoadImage')(sequencer,img,json_q.images[img],function(){
load(++i);
});
}
load(0);
}
function replaceImage(selector,steps,options) {
@@ -161,9 +171,8 @@ ImageSequencer = function ImageSequencer(options) {
return require('./ReplaceImage')(this,selector,steps);
}
function setUI(_UI) {
UI = require('./UserInterface')(_UI,options);
return UI;
function setUI(UI) {
this.events = require('./UserInterface')(UI);
}
return {
@@ -173,7 +182,7 @@ ImageSequencer = function ImageSequencer(options) {
inputlog: inputlog,
modules: modules,
images: images,
UI: UI,
events: events,
//user functions
loadImages: loadImages,

13
src/InsertStep.js
View File

@@ -10,11 +10,14 @@ function InsertStep(ref, image, index, name, o) {
if(index==-1) index = ref.images[image].steps.length;
var UI = ref.UI({
stepName: o.name,
stepID: o.number,
imageName: o.image
});
o.step = {
name: o.name,
ID: o.number,
imageName: o.image,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var UI = ref.events;
var module = ref.modules[name](o,UI);
ref.images[image].steps.splice(index,0,module);

81
src/LoadImage.js
View File

@@ -1,46 +1,99 @@
function LoadImage(ref, name, src) {
function CImage(src) {
var datauri = (ref.options.inBrowser || src.substring(0,11) == "data:image/")?(src):require('urify')(src);
function LoadImage(ref, name, src, main_callback) {
function makeImage(datauri) {
var image = {
src: datauri,
format: datauri.split(':')[1].split(';')[0].split('/')[1]
}
return image;
}
function CImage(src, callback) {
var datauri;
if (!!src.match(/^data:/i)) {
datauri = src;
callback(datauri);
}
else if (!ref.options.inBrowser && !!src.match(/^https?:\/\//i)) {
require( src.match(/^(https?):\/\//i)[1] ).get(src,function(res){
var data = '';
var contentType = res.headers['content-type'];
res.setEncoding('base64');
res.on('data',function(chunk) {data += chunk;});
res.on('end',function() {
callback("data:"+contentType+";base64,"+data);
});
});
}
else if (ref.options.inBrowser) {
var ext = src.split('.').pop();
var image = document.createElement('img');
var canvas = document.createElement('canvas');
var context = canvas.getContext('2d');
image.onload = function() {
canvas.width = image.naturalWidth;
canvas.height = image.naturalHeight;
context.drawImage(image,0,0);
datauri = canvas.toDataURL(ext);
callback(datauri);
}
image.src = src;
}
else {
datauri = require('urify')(src);
callback(datauri);
}
}
function loadImage(name, src) {
var step = {
name: "load-image",
ID: ref.options.sequencerCounter++,
imageName: name,
inBrowser: ref.options.inBrowser,
ui: ref.options.ui
};
var image = {
src: src,
steps: [{
options: {
id: ref.options.sequencerCounter++,
id: step.ID,
name: "load-image",
title: "Load Image"
title: "Load Image",
step: step
},
UI: ref.UI({
stepName: "load-image",
stepID: ref.options.sequencerCounter++,
imageName: name
}),
UI: ref.events,
draw: function() {
UI.onDraw(options.step);
if(arguments.length==1){
this.output = CImage(arguments[0]);
options.step.output = this.output;
UI.onComplete(options.step);
return true;
}
else if(arguments.length==2) {
this.output = CImage(arguments[0]);
options.step.output = this.output;
arguments[1]();
UI.onComplete(options.step);
return true;
}
return false;
},
output: CImage(src)
}]
};
CImage(src, function(datauri) {
var output = makeImage(datauri);
ref.images[name] = image;
ref.images[name].steps[0].UI.onSetup();
ref.images[name].steps[0].UI.onDraw();
ref.images[name].steps[0].UI.onComplete(image.steps[0].output.src);
var loadImageStep = ref.images[name].steps[0];
loadImageStep.output = output;
loadImageStep.options.step.output = loadImageStep.output.src;
loadImageStep.UI.onSetup(loadImageStep.options.step);
loadImageStep.UI.onDraw(loadImageStep.options.step);
loadImageStep.UI.onComplete(loadImageStep.options.step);
main_callback();
return true;
});
}
return loadImage(name,src);

52
src/UserInterface.js
View File

@@ -1,72 +1,66 @@
/*
* Default UI for each image-sequencer module
* User Interface Handling Module
*/
module.exports = function UserInterface(UI,options) {
return function userInterface(identity) {
module.exports = function UserInterface(events = {}) {
var UI = UI || {};
UI.onSetup = UI.onSetup || function() {
if(options.ui == false) {
events.onSetup = events.onSetup || function(step) {
if(step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Create and append an HTML Element
console.log("Added Step \""+identity.stepName+"\" to \""+identity.imageName+"\".");
console.log("Added Step \""+step.name+"\" to \""+step.imageName+"\".");
}
else {
// Create a NodeJS Object
console.log('\x1b[36m%s\x1b[0m',"Added Step \""+identity.stepName+"\" to \""+identity.imageName+"\".");
console.log('\x1b[36m%s\x1b[0m',"Added Step \""+step.name+"\" to \""+step.imageName+"\".");
}
}
UI.onDraw = UI.onDraw || function() {
if (options.ui == false) {
events.onDraw = events.onDraw || function(step) {
if (step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Overlay a loading spinner
console.log("Drawing Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log("Drawing Step \""+step.name+"\" on \""+step.imageName+"\".");
}
else {
// Don't do anything
console.log('\x1b[33m%s\x1b[0m',"Drawing Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log('\x1b[33m%s\x1b[0m',"Drawing Step \""+step.name+"\" on \""+step.imageName+"\".");
}
}
UI.onComplete = UI.onComplete || function(output) {
if (options.ui == false) {
events.onComplete = events.onComplete || function(step) {
if (step.ui == false) {
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Update the DIV Element
// Hide the laoding spinner
console.log("Drawn Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log("Drawn Step \""+step.name+"\" on \""+step.imageName+"\".");
}
else {
// Update the NodeJS Object
console.log('\x1b[32m%s\x1b[0m',"Drawn Step \""+identity.stepName+"\" on \""+identity.imageName+"\".");
console.log('\x1b[32m%s\x1b[0m',"Drawn Step \""+step.name+"\" on \""+step.imageName+"\".");
}
}
UI.onRemove = UI.onRemove || function(callback) {
if(options.ui == false){
events.onRemove = events.onRemove || function(step) {
if(step.ui == false){
// No UI
}
else if(options.inBrowser) {
else if(step.inBrowser) {
// Remove the DIV Element
console.log("Removing Step \""+identity.stepName+"\" of \""+identity.imageName+"\".");
console.log("Removing Step \""+step.name+"\" of \""+step.imageName+"\".");
}
else {
// Delete the NodeJS Object
console.log('\x1b[31m%s\x1b[0m',"Removing Step \""+identity.stepName+"\" of \""+identity.imageName+"\".");
console.log('\x1b[31m%s\x1b[0m',"Removing Step \""+step.name+"\" of \""+step.imageName+"\".");
}
}
return UI;
}
return events;
}

7
src/modules/Crop/Module.js
View File

@@ -16,12 +16,12 @@
module.exports = function CropModule(options,UI) {
options = options || {};
options.title = "Crop Image";
UI.onSetup();
UI.onSetup(options.step);
var output
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
require('./Crop')(input,options,function(out,format){
@@ -29,7 +29,8 @@
src: out,
format: format
}
UI.onComplete(out);
options.step.output = out;
UI.onComplete(options.step);
callback();
});

10
src/modules/DecodeQr/Module.js
View File

@@ -4,14 +4,14 @@
module.exports = function DoNothing(options,UI) {
options = options || {};
options.title = "Decode QR Code";
UI.onSetup();
UI.onSetup(options.step);
var output;
var jsQR = require('jsqr');
var getPixels = require('get-pixels');
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
getPixels(input.src,function(err,pixels){
@@ -22,13 +22,15 @@ module.exports = function DoNothing(options,UI) {
step.output = input;
step.output.data = decoded;
callback();
UI.onComplete(input.src);
options.step.output = input.src;
UI.onComplete(options.step);
});
}
return {
options: options,
draw: draw,
output: output
output: output,
UI: UI
}
}

9
src/modules/DoNothing/Module.js
View File

@@ -4,14 +4,17 @@
module.exports = function DoNothing(options,UI) {
options = options || {};
options.title = "Do Nothing";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
this.output = input;
options.step.output = this.output.src;
callback();
UI.onComplete(this.output.src);
UI.onComplete(options.step);
}
return {

7
src/modules/DoNothingPix/Module.js
View File

@@ -5,12 +5,12 @@ module.exports = function DoNothingPix(options,UI) {
options = options || {};
options.title = "Do Nothing with pixels";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -18,7 +18,8 @@ module.exports = function DoNothingPix(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype}
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,

7
src/modules/GreenChannel/Module.js
View File

@@ -6,12 +6,12 @@ module.exports = function GreenChannel(options,UI) {
options = options || {};
options.title = "Green channel only";
options.description = "Displays only the green channel of an image";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -19,7 +19,8 @@ module.exports = function GreenChannel(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,

7
src/modules/Invert/Module.js
View File

@@ -6,14 +6,14 @@ module.exports = function GreenChannel(options,UI) {
options = options || {};
options.title = "Invert Colors";
options.description = "Inverts the colors of the image";
UI.onSetup();
UI.onSetup(options.step);
var output;
//function setup() {} // optional
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -21,7 +21,8 @@ module.exports = function GreenChannel(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,

7
src/modules/NdviRed/Module.js
View File

@@ -5,12 +5,12 @@ module.exports = function NdviRed(options,UI) {
options = options || {};
options.title = "NDVI for red-filtered cameras (blue is infrared)";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -20,7 +20,8 @@ module.exports = function NdviRed(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,

7
src/modules/SegmentedColormap/Module.js
View File

@@ -2,12 +2,12 @@ module.exports = function SegmentedColormap(options,UI) {
options = options || {};
options.title = "Segmented Colormap";
UI.onSetup();
UI.onSetup(options.step);
var output;
function draw(input,callback) {
UI.onDraw();
UI.onDraw(options.step);
const step = this;
function changePixel(r, g, b, a) {
@@ -18,7 +18,8 @@ module.exports = function SegmentedColormap(options,UI) {
}
function output(image,datauri,mimetype){
step.output = {src:datauri,format:mimetype};
UI.onComplete(datauri);
options.step.output = datauri;
UI.onComplete(options.step);
}
return require('../_nomodule/PixelManipulation.js')(input, {
output: output,

2
src/modules/_nomodule/PixelManipulation.js
View File

@@ -43,7 +43,7 @@ module.exports = function PixelManipulation(image, options) {
// but node modules and their documentation are essentially arcane on this point
var chunks = [];
var totalLength = 0;
var r = savePixels(pixels, options.format);
var r = savePixels(pixels, options.format, {quality: 100});
r.on('data', function(chunk){
totalLength += chunk.length;

21
test/chain.js
View File

@@ -17,15 +17,19 @@ test('loadImages/loadImage has a name generator.', function (t){
t.end();
});
test('loadImages/loadImage returns a wrapper.', function (t){
var returnval = sequencer.loadImage(red);
test('loadImages/loadImage returns a wrapper in the callback.', function (t){
sequencer.loadImage(red, function() {
var returnval = this;
t.equal(returnval.name,"ImageSequencer Wrapper", "Wrapper is returned");
t.equal(returnval.images[0],"image2","Image scope is defined");
t.end();
});
});
test('addSteps is two-way chainable.', function (t){
var returnval = sequencer.loadImage(red).addSteps('invert');
sequencer.loadImage(red, function(){
var returnval = this;
this.addSteps('invert');
t.equal(returnval.name,"ImageSequencer Wrapper", "Wrapper is returned");
t.equal(returnval.images[0],"image3","Image scope is defined");
t.equal(sequencer.images.image3.steps.length,2,"Loaded image is affected");
@@ -33,6 +37,7 @@ test('addSteps is two-way chainable.', function (t){
t.equal(sequencer.images.image2.steps.length,1,"Other images are not affected");
t.equal(sequencer.images.image1.steps.length,1,"Other images are not affected");
t.end();
});
});
test('addSteps is two-way chainable without loadImages.', function (t){
@@ -44,11 +49,14 @@ test('addSteps is two-way chainable without loadImages.', function (t){
});
test('removeSteps is two-way chainable.', function (t){
var returnval = sequencer.loadImage(red).addSteps('invert').removeSteps(1);
sequencer.loadImage(red,function(){
var returnval = this;
this.addSteps('invert').removeSteps(1);
t.equal(returnval.name,"ImageSequencer Wrapper", "Wrapper is returned");
t.equal(returnval.images[0],"image4","Image scope is defined");
t.equal(sequencer.images.image4.steps.length,1);
t.end();
});
});
test('removeSteps is two-way chainable without loadImages.', function (t){
@@ -59,12 +67,15 @@ test('removeSteps is two-way chainable without loadImages.', function (t){
});
test('insertSteps is two-way chainable.', function (t){
var returnval = sequencer.loadImage(red).insertSteps(1,'invert');
sequencer.loadImage(red,function() {
var returnval = this;
this.insertSteps(1,'invert');
t.equal(returnval.name,"ImageSequencer Wrapper","Wrapper is returned");
t.equal(returnval.images[0],"image5","Image scope is defined");
t.equal(sequencer.images.image5.steps.length,2);
t.equal(sequencer.images.image5.steps[1].options.name,"invert","Correct Step Inserrted");
t.end();
});
});
test('insertSteps is two-way chainable without loadImages.', function (t){

38
test/image-manip.js
View File

@@ -7,13 +7,21 @@ var test = require('tape');
require('../src/ImageSequencer.js');
//require image files as DataURLs so they can be tested alike on browser and Node.
var sequencer = ImageSequencer({ ui: false });
var image = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z";
var qr = require('../examples/IS-QR.js');
sequencer.loadImages(image);
var qr = require('../examples/IS-QR.js');
var test_png = require('../examples/test.png.js');
var test_gif = require('../examples/test.gif.js');
sequencer.loadImages(test_png);
sequencer.addSteps(['do-nothing-pix','invert','invert']);
sequencer.run();
test("Preload", function(t) {
sequencer.run(function(){
t.end();
});
});
test("Inverted image isn't identical", function (t) {
t.notEqual(sequencer.images.image1.steps[1].output.src, sequencer.images.image1.steps[2].output.src);
@@ -26,12 +34,32 @@ test("Twice inverted image is identical to original image", function (t) {
});
test("Decode QR module works properly :: setup", function (t) {
sequencer.loadImage(qr).addSteps('decode-qr').run(function(){
sequencer.loadImage(qr,function(){
this.addSteps('decode-qr').run(function(){
t.end();
});
})
});
test("Decode QR module works properly :: teardown", function (t) {
t.equal("http://github.com/publiclab/image-sequencer",sequencer.images.image2.steps[1].output.data);
t.end();
});
test("PixelManipulation works for PNG images", function (t) {
sequencer.loadImages(test_png,function(){
this.addSteps('invert').run(function(out){
t.equal(1,1)
t.end();
});
});
});
test("PixelManipulation works for GIF images", function (t) {
sequencer.loadImages(test_gif,function(){
this.addSteps('invert').run(function(out){
t.equal(1,1)
t.end();
});
});
});

20
test/image-sequencer.js
View File

@@ -40,18 +40,22 @@ test('loadImages loads a DataURL image and creates a step.', function (t){
t.end();
});
test('loadImages loads a PATH image and creates a step. (NodeJS)', function (t){
if(sequencer.options.inBrowser){
t.equal("not applicable","not applicable","Not applicable for Browser");
if(!sequencer.options.inBrowser)
test('loadImage loads an image from URL and creates a step. (NodeJS)', function (t){
sequencer.loadImage('URL','https://ccpandhare.github.io/image-sequencer/examples/red.jpg', function(){
t.equal(sequencer.images.URL.steps.length, 1, "Initial Step Created");
t.equal(typeof(sequencer.images.URL.steps[0].output.src), "string", "Initial output exists");
t.end();
}
else {
sequencer.loadImages(red);
});
});
if(!sequencer.options.inBrowser)
test('loadImages loads an image from PATH and creates a step. (NodeJS)', function (t){
sequencer.loadImages('examples/red.jpg');
t.equal(sequencer.images.image1.steps.length, 1, "Initial Step Created");
t.equal(typeof(sequencer.images.image1.steps[0].output.src), "string", "Initial output exists");
t.end();
}
});
});
test('loadImage works too.', function (t){
sequencer.loadImage('test2',red);