Why do I see an all white image when I use IMFILTER?
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i have chessboard image and i'm apply ones(31) filter for this image by using imfilter but the result is white image . can you help me to solve this error
this code used
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g = imread('ch2.jpg');
h= rgb2gray(g);
w=ones(31);
gd=imfilter(h,w);
imshow(gd,[]) ;
1 个评论
Image Analyst
2013-10-19
You forgot to attach your image ch2.jpg. Please attach it using the paperclip icon.
回答（2 个）
I am unsure what you are trying to achieve. If you are using w=ones(31) as averaging filter. Then change your code as below
g = imread('ch2.jpg');
h= rgb2gray(g);
w=fspecial('average',31);
gd=imfilter(h,w);
imshow(gd) ;
Image Analyst
2013-10-19
Cast h to double and it will work:
h = double(rgb2gray(g));
1 个评论
Image Analyst
2013-10-22
Please mark as Accepted if it worked for you. Thanks.
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2013-10-19
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