Legacy ImageMagick Discussions Archive

Hai..

To clearly view the shapes and sudden intensity change ,I need to improve the contrast in my processing image.

For contrast enhancement i have used Histogram Equalization.But i didn't get expected output.

please guide me how to achieve contrast enhancement.

Increasing contrast somewhere will always reduce it somewhere else.

Can you put up your image and explain what you want?

In IM, you have two modes of operation for histogram equalization using -equalize

If you want to equalize all channels together then,

convert image -equalize result

If you want to equalize each channel separately then,

convert image -channel rgb -equalize result


But as snibgo said, it is always best to provide examples of what you want to do and a clear explanation of the problem along with identifying your version of IM and platform.

see viewtopic.php?f=1&t=9620