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.

how can i solve this. Kindly help me. Thanks in advance

Answer 1

[Image Analyst]

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)));