How to get the gradient of a pixel?
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I am doing block processing on a fingeprint image and I will like to get the gradient of all the pixels in their x and y components separately using a sobel filter. I am doing this block by block.
I saw the function imgradient() but after reading the documentation it seems to be getting the gradient for the whole image that is passed to it, which in my case will be the block, except i understood wrongly, and if i did please help me out or is there any function i can use to get the gradient of just one pixel in the image block.
4 件のコメント
darova
2020 年 4 月 24 日
- i can use to get the gradient of just one pixel in the image block.
I don't understand this sentence
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