Legacy ImageMagick Discussions Archive

Does anyone know how to duplicate the "Color Overlay" feature in photoshop. Basically it replaces all pixels with a specific color.

Thanks for any help

Terry Riegel

To replace all pixels in an image with a specific color, use this command:

• convert image.jpg -fill red -draw 'color 0,0 reset' image.png

That replaces the transparent areas also, I just want to replace any pixel that has a color similar to Photoshops "Color Overlay" command

magick wrote: To replace all pixels in an image with a specific color, use this command:

• convert image.jpg -fill red -draw 'color 0,0 reset' image.png

The above command has the effect of creating a red box of the same dimensions as the original graphic. I am looking for something that will replace all exisitng pixels with red. In other words I don't want red in the transparent areas.

Ok, try this:

• convert image.jpg \( -clone 0 -fill red -draw "color 0,0 reset" \) -compose atop -composite image.png

This command will only work with a modern version of ImageMagick. If this is still not what you want, let us know.

magick wrote: convert image.jpg \( -clone 0 -fill red -draw "color 0,0 reset" \) -compose atop -composite image.png

Thanks, it works awesome.

It does not work for me. Is it working with current ImageMagick version 6.7.6?

It generated red square and fill background too but transparent background should be kept.

Instead of 'reset' you should be using 'replace' or all of that color (like -opaque operator) or 'floodfill' to replace colors next to the seed point.

See Color replacement
http://www.imagemagick.org/Usage/color_basics/#replace

And Draw Color primative
http://www.imagemagick.org/Usage/draw/#color