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[GCI] Standardised Blob Analysis module comments (#1351)

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* fix comments

* Update src/modules/BlobAnalysis/BlobAnalysis.js

Fix double image

* Update src/modules/BlobAnalysis/BlobAnalysis.js

* . fix
This commit is contained in:
Harsh Khandeparkar
2019-12-16 17:47:25 +00:00
committed by Jeffrey Warren
parent 3d4025fd93
commit 0ce2cf9492
2 changed files with 13 additions and 13 deletions
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22
src/modules/BlobAnalysis/BlobAnalysis.js
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@@ -1,6 +1,6 @@
module.exports = function(pixels, options, priorStep){ module.exports = function(pixels, options, priorStep){
var $ = require('jquery'); // to make Blob-analysis work for node.js var $ = require('jquery'); // To make Blob-analysis work in Node
var img = $(priorStep.imgElement); var img = $(priorStep.imgElement);
if(Object.keys(img).length === 0){ if(Object.keys(img).length === 0){
@@ -25,26 +25,26 @@ module.exports = function(pixels, options, priorStep){
let unknown = new cv.Mat(); let unknown = new cv.Mat();
let markers = new cv.Mat(); let markers = new cv.Mat();
// gray and threshold image // Gray and Threshold the image
cv.cvtColor(src, gray, cv.COLOR_RGBA2GRAY, 0); cv.cvtColor(src, gray, cv.COLOR_RGBA2GRAY, 0);
cv.threshold(gray, gray, 0, 255, cv.THRESH_BINARY_INV + cv.THRESH_OTSU); cv.threshold(gray, gray, 0, 255, cv.THRESH_BINARY_INV + cv.THRESH_OTSU);
// get background // Get background
let M = cv.Mat.ones(3, 3, cv.CV_8U); let M = cv.Mat.ones(3, 3, cv.CV_8U);
cv.erode(gray, gray, M); cv.erode(gray, gray, M);
cv.dilate(gray, opening, M); cv.dilate(gray, opening, M);
cv.dilate(opening, imageBg, M, new cv.Point(-1, -1), 3); cv.dilate(opening, imageBg, M, new cv.Point(-1, -1), 3);
// distance transform // Distance transform
cv.distanceTransform(opening, distTrans, cv.DIST_L2, 5); cv.distanceTransform(opening, distTrans, cv.DIST_L2, 5);
cv.normalize(distTrans, distTrans, 1, 0, cv.NORM_INF); cv.normalize(distTrans, distTrans, 1, 0, cv.NORM_INF);
// get foreground // Get foreground
cv.threshold(distTrans, imageFg, 0.7 * 1, 255, cv.THRESH_BINARY); cv.threshold(distTrans, imageFg, 0.7 * 1, 255, cv.THRESH_BINARY);
imageFg.convertTo(imageFg, cv.CV_8U, 1, 0); imageFg.convertTo(imageFg, cv.CV_8U, 1, 0);
cv.subtract(imageBg, imageFg, unknown); cv.subtract(imageBg, imageFg, unknown);
// get connected components markers // Get connected components markers
cv.connectedComponents(imageFg, markers); cv.connectedComponents(imageFg, markers);
for (let i = 0; i < markers.rows; i++) { for (let i = 0; i < markers.rows; i++) {
for (let j = 0; j < markers.cols; j++) { for (let j = 0; j < markers.cols; j++) {
@@ -58,13 +58,13 @@ module.exports = function(pixels, options, priorStep){
cv.cvtColor(src, src, cv.COLOR_RGBA2RGB, 0); cv.cvtColor(src, src, cv.COLOR_RGBA2RGB, 0);
cv.watershed(src, markers); cv.watershed(src, markers);
// draw barriers // Grow barriers
for (let i = 0; i < markers.rows; i++) { for (let i = 0; i < markers.rows; i++) {
for (let j = 0; j < markers.cols; j++) { for (let j = 0; j < markers.cols; j++) {
if (markers.intPtr(i, j)[0] == -1) { if (markers.intPtr(i, j)[0] == -1) {
src.ucharPtr(i, j)[0] = 255; // R src.ucharPtr(i, j)[0] = 255; // Red
src.ucharPtr(i, j)[1] = 0; // G src.ucharPtr(i, j)[1] = 0; // Green
src.ucharPtr(i, j)[2] = 0; // B src.ucharPtr(i, j)[2] = 0; // Blue
} }
} }
} }
@@ -78,4 +78,4 @@ module.exports = function(pixels, options, priorStep){
pixels.data = myImageData.data; pixels.data = myImageData.data;
return pixels; return pixels;
}; };

4
src/modules/BlobAnalysis/Module.js
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@@ -10,7 +10,7 @@ module.exports = function BlobAnalysis(options, UI){
var step = this; var step = this;
var priorStep = this.getStep(-1); // get the previous step to process it var priorStep = this.getStep(-1); // Get the previous step to process it
function extraManipulation(pixels){ function extraManipulation(pixels){
@@ -40,4 +40,4 @@ module.exports = function BlobAnalysis(options, UI){
output: output, output: output,
UI: UI UI: UI
}; };
}; };