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Update js_image_arithmetics.markdown

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JamesNewton 2019-10-11 10:07:22 -07:00 committed by GitHub
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doc/js_tutorials/js_core/js_image_arithmetics/js_image_arithmetics.markdown
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@ -27,7 +27,7 @@ src1.delete(); src2.delete(); dst.delete(); mask.delete();
Image Subtraction
--------------
You can subtract two images by OpenCV function, cv.subtract(). res = img1 - img2. Both images should be of same depth and type.
You can subtract two images by OpenCV function, cv.subtract(). res = img1 - img2. Both images should be of same depth and type. Note that when used with RGBA images, the alpha channel is also subtracted.
For example, consider below sample:
@code{.js}
@ -59,4 +59,4 @@ Try it
<iframe src="../../js_image_arithmetics_bitwise.html" width="100%"
onload="this.style.height=this.contentDocument.body.scrollHeight +'px';">
</iframe>
\endhtmlonly
\endhtmlonly