How do I use a highpass filter?
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I don't see any option to do so with the fspecial() function. I looked at the information of highpass() on mathworks and I was confused about the inputs. So far I have this and it produces an error.
A = imread('landscape.jpg');
B = imresize(A, [256 256], 'Antialiasing', true);
E = highpass(1, pi/2);
G = imfilter(B, E);
imshow(G);
回答（1 个）
Sindhu Karri
2021-2-4
0 个投票
Hii,
For 'highpass' function the parameters to be passed should be normalised so highpass(0,0.5) won't be producing an error
Refer to link:
you can also refer to the below link for additional information on applying highpass filter to an image
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2021-1-31
2021-2-4
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