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Improve recognition algorithm

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ColonelParrot 2025-01-27 16:00:22 -05:00
parent b6ba8178fc
commit 084b33ff76
2 changed files with 8 additions and 6 deletions
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3
src/jscanify-node.js
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@ -44,7 +44,7 @@ class jscanify {
*/ */
findPaperContour(img) { findPaperContour(img) {
const imgGray = new cv.Mat(); const imgGray = new cv.Mat();
cv.cvtColor(img, imgGray, cv.COLOR_RGBA2GRAY); cv.Canny(img, imgGray, 50, 200);
const imgBlur = new cv.Mat(); const imgBlur = new cv.Mat();
cv.GaussianBlur( cv.GaussianBlur(
@ -69,6 +69,7 @@ class jscanify {
cv.RETR_CCOMP, cv.RETR_CCOMP,
cv.CHAIN_APPROX_SIMPLE cv.CHAIN_APPROX_SIMPLE
); );
let maxArea = 0; let maxArea = 0;
let maxContourIndex = -1; let maxContourIndex = -1;
for (let i = 0; i < contours.size(); ++i) { for (let i = 0; i < contours.size(); ++i) {

7
src/jscanify.js
View File

@ -20,7 +20,7 @@
} }
class jscanify { class jscanify {
constructor() {} constructor() { }
/** /**
* Finds the contour of the paper within the image * Finds the contour of the paper within the image
@ -29,7 +29,7 @@
*/ */
findPaperContour(img) { findPaperContour(img) {
const imgGray = new cv.Mat(); const imgGray = new cv.Mat();
cv.cvtColor(img, imgGray, cv.COLOR_RGBA2GRAY); cv.Canny(img, imgGray, 50, 200);
const imgBlur = new cv.Mat(); const imgBlur = new cv.Mat();
cv.GaussianBlur( cv.GaussianBlur(
@ -47,7 +47,7 @@
imgThresh, imgThresh,
0, 0,
255, 255,
cv.THRESH_BINARY + cv.THRESH_OTSU cv.THRESH_OTSU
); );
let contours = new cv.MatVector(); let contours = new cv.MatVector();
@ -60,6 +60,7 @@
cv.RETR_CCOMP, cv.RETR_CCOMP,
cv.CHAIN_APPROX_SIMPLE cv.CHAIN_APPROX_SIMPLE
); );
let maxArea = 0; let maxArea = 0;
let maxContourIndex = -1; let maxContourIndex = -1;
for (let i = 0; i < contours.size(); ++i) { for (let i = 0; i < contours.size(); ++i) {