Why the denoised image is not visible after running wdenoise2 code

This is my code

wdenoise2(double(gr),3,'Wavelet','coif5','NoiseEstimate','LevelDependent','DenoisingMethod','Bayes','ThresholdRule','Median','NoiseDirection',["h","v","d"]);

and the image look like this. Can anyone help me to perform denoising images using wavelet s

Answer 1

[Walter Roberson]

imshow(denoised, [0 255])

assuming that the original image is uint8.

You should be considering using im2double() on your original image, processing the result. imwrite() and imshow() can accept the results directly, or you can im2uint8() after the processing.