Legacy ImageMagick Discussions Archive

fmw42: Thank you very much for your assistance

After command:
convert -channel Green -fill white -colorize 100% +channel in.png out.png
all grayscale pixels are white (255,255,255)

After command:
convert -channel Green -threshold -1 +channel in.png out.png
all image is white

1. As I understand, -colorize option needs some parameter

2. Unrecognized option (-separate)

fmw47: I receive "convert: Missing value (-colorize)" message

Version: @(#)ImageMagick 5.4.1 12/01/01 Q:16 http://www.imagemagick.org Copyright: Copyright (C) 2001 ImageMagick Studio Usage: convert [options ...] file [ files... ] output_file Where options include: -adjoin join images into a single multi-image file -affine matrix drawing transform matrix ...

Thank you, fmw42 and snibgo. Unfortunately, both your solutions don't work for my (-separate, -evaluate options don't exist ...)

I have old version of ImageMagick (5.4.1), unfortunately I can not upgrade to newer version because 5.4.1 is the latest version available for my platform (SGI IRIX 6.5). I have grayscale image and i want for every pixel replace Green value to 255 without change Red and Blue channels. For example RGB ...