when I was trying to reconstruct an image using block matching algorithm, i have got an reconstructed image with non zero elements. But when i tried to plot it using imshow, it appears to be a blank (full white) image.

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jeffin
jeffin 2015-3-30
回答： Image Analyst 2015-3-30
how can i solve this. Kindly help me. Thanks in advance

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Image Analyst
Image Analyst 2015-3-30
It's probably a floating point image. Either use [] in imshow():
imshow(yourFloatingPointImage, []);
or scale to 0-255 with mat2gray() and then cast to uint8 with the uint8() function:
imshow(uint8(255*mat2gray(yourFloatingPointImage)));

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