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Switch rows and cols in call to Mat.zeros

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The correct order is rows then cols:
https://docs.opencv.org/4.x/d3/d63/classcv_1_1Mat.html#a56daa006391a670e9cb0cd08e3168c99
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Zwyx 2023-04-02 23:00:21 +08:00 committed by GitHub
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doc/js_tutorials/js_assets/js_contours_begin_contours.html
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@ -41,7 +41,7 @@
<script src="utils.js" type="text/javascript"></script>
<script id="codeSnippet" type="text/code-snippet">
let src = cv.imread('canvasInput');
let dst = cv.Mat.zeros(src.cols, src.rows, cv.CV_8UC3);
let dst = cv.Mat.zeros(src.rows, src.cols, cv.CV_8UC3);
cv.cvtColor(src, src, cv.COLOR_RGBA2GRAY, 0);
cv.threshold(src, src, 120, 200, cv.THRESH_BINARY);
let contours = new cv.MatVector();