Image - calculating gradient
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Hi all, I have a grayscale image. I need to calculate the gradient from where it's saturated to where it's fading out. Does matlab has a function for that? If not, do you have any ideas on how to do so?
thanks.
回答（1 个）
Image Analyst
2011-7-12
0 个投票
Did you look? If you had, you would have seen gradient(). You can also use conv2() or edge() or others. Post your image if you want more help.
2 个评论
Nima Azar
2011-7-12
Image Analyst
2011-7-12
And how do you want to select an area (before calculating the gradient)? Automatically based on intensity or something? Manually by having user trace some area?
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