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Added Crop Module

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Chinmay Pandhare
2017-03-11 09:28:37 +05:30
parent 732df84378
commit 6faeca2e80
5 changed files with 111 additions and 12 deletions
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68
dist/image-sequencer.js vendored
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@@ -184268,11 +184268,11 @@ module.exports = {
'green-channel': require('./modules/GreenChannel'),
'ndvi-red': require('./modules/NdviRed'),
'plot': require('./modules/Plot'),
'image-threshold': require('./modules/ImageThreshold')
'image-threshold': require('./modules/ImageThreshold'),
'crop': require('./modules/Crop')
}
},{"./modules/GreenChannel":1040,"./modules/ImageSelect":1041,"./modules/ImageThreshold":1042,"./modules/NdviRed":1043,"./modules/Plot":1045}],1039:[function(require,module,exports){
},{"./modules/Crop":1040,"./modules/GreenChannel":1041,"./modules/ImageSelect":1042,"./modules/ImageThreshold":1043,"./modules/NdviRed":1044,"./modules/Plot":1046}],1039:[function(require,module,exports){
/*
* Default UI for each image-sequencer module
*/
@@ -184313,6 +184313,57 @@ module.exports = function UserInterface(options) {
}
},{}],1040:[function(require,module,exports){
/*
* Image Cropping module
*/
module.exports = function Crop(options){
options = options || {};
options.title = "Crop Image";
options.format = options.format || "png";
function draw(image) {
var getPixels = require("get-pixels"),
savePixels = require("save-pixels"),
base64 = require('base64-stream');
getPixels(image.src,function(err,pixels){
var newdata = [];
var ox = options.cropX || 0; //Where to begin the crop on X axis
var oy = options.cropY || 0; //Where to begin the crop on Y axis
var w = options.cropL || Math.floor(0.5*pixels.shape[0]); //Length of crop
var h = options.cropH || Math.floor(0.5*pixels.shape[1]); //Height of crop
var iw = pixels.shape[0]; //Width of Original Image
newarray = new Uint8Array(4*w*h);
for (var n = oy; n < oy + h; n++) {
newarray.set(pixels.data.slice(n*4*iw + ox, n*4*iw + ox + 4*w),4*w*(n-oy));
}
pixels.data = newarray;
pixels.shape = [w,h,4];
pixels.stride[1] = 4*w;
var buffer = base64.encode();
savePixels(pixels, options.format)
.on('end', function() {
var img = new Image();
img.src = 'data:image/' + options.format + ';base64,' + buffer.read().toString();
if (options.output) options.output(img);
}).pipe(buffer);
});
}
return {
options: options,
draw: draw
}
}
},{"base64-stream":13,"get-pixels":113,"save-pixels":963}],1041:[function(require,module,exports){
/*
* Display only the green channel
*/
@@ -184341,7 +184392,7 @@ module.exports = function GreenChannel(options) {
}
}
},{"./PixelManipulation.js":1044}],1041:[function(require,module,exports){
},{"./PixelManipulation.js":1045}],1042:[function(require,module,exports){
/*
* Special module to kick off the sequence
* -- depends on jQuery for interface setup & drag & drop
@@ -184424,12 +184475,11 @@ module.exports = function ImageSelect(options) {
}
},{"jquery":273}],1042:[function(require,module,exports){
},{"jquery":273}],1043:[function(require,module,exports){
/*
* Image thresholding with 'image-filter-threshold'
*/
module.exports = function ImageThreshold(options) {
options = options || {};
options.title = "Threshold image";
options.threshold = options.threshold || 30;
@@ -184473,7 +184523,7 @@ module.exports = function ImageThreshold(options) {
}
}
},{"image-filter-core":261,"image-filter-threshold":262}],1043:[function(require,module,exports){
},{"image-filter-core":261,"image-filter-threshold":262}],1044:[function(require,module,exports){
/*
* NDVI with red filter (blue channel is infrared)
*/
@@ -184502,7 +184552,7 @@ module.exports = function NdviRed(options) {
}
}
},{"./PixelManipulation.js":1044}],1044:[function(require,module,exports){
},{"./PixelManipulation.js":1045}],1045:[function(require,module,exports){
/*
* General purpose per-pixel manipulation
* accepting a changePixel() method to remix a pixel's channels
@@ -184565,7 +184615,7 @@ module.exports = function PixelManipulation(image, options) {
}
},{"base64-stream":13,"get-pixels":113,"save-pixels":963}],1045:[function(require,module,exports){
},{"base64-stream":13,"get-pixels":113,"save-pixels":963}],1046:[function(require,module,exports){
/*
* Plot image on a graph with color bar
*/