# GD library black/white

**URL:** https://forum.kirupa.com/t/gd-library-black-white/151906
**Category:** programming
**Created:** [June 19, 2005, 12:37pm UTC](https://forum.kirupa.com/t/gd-library-black-white/151906 "2005-06-19T12:37:40Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![brossiekoppie](https://avatars.discourse-cdn.com/v4/letter/b/65b543/32.png) [@brossiekoppie](https://forum.kirupa.com/u/brossiekoppie)
#### Post date: [June 19, 2005, 12:37pm UTC](https://forum.kirupa.com/t/gd-library-black-white/151906/1 "2005-06-19T12:37:40Z")

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Hi, I’m looking for a function/class to make a picture grayscale instead of full color. I’ ve already seen some duotone classes but that’s not what I’m looking for. I want to make desaturated pictures of full color pics.

regards, bros