January 2018
Intermediate to advanced
268 pages
6h 20m
English
Content preview from OpenCV 3.x with Python By Example - Second Edition
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Understanding the pattern
You must have noticed a common pattern in the image filtering code examples. We build a kernel and then use filter2D to get the desired output. That's exactly what's happening in this code example as well! You can play around with the values inside the kernel and see if you can get different visual effects. Make sure that you normalize the kernel before applying it, or else the image will look too bright because you are artificially increasing the pixel values in the image.
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