how to remove structured noises such as characters from latent fingerprints which is in the form of .jp2

how to remove structured noises such as characters from latent fingerprint which is in the form of .jp2. When I done this using Total variation model, imshow displays a white image

[D Joseph]

Thanks @ Roberson..But the characters can't be removed from latent fingerprint. Is there any other better way to remove structured noises from latent fingerprint and to extract the texture

Answer 1

[Walter Roberson]

Perhaps you accidentally converted your image data using double() instead of converting it using im2double()