grayscale

Subject: grayscale
From: Patrick Lam (plam@plam.lcs.mit.edu)
Date: Sat Apr 21 2001 - 00:19:23 CDT

• sorted by: [ date ] [ thread ] [ subject ] [ author ]
• Next message: Hubert Figuiere: "Re: Graphic Images"
• Previous message: Jeremy Teo: "Re: [PATCH] Fix for bug #863"
• Next in thread: Mike Nordell: "Re: grayscale"
• Reply: Mike Nordell: "Re: grayscale"
• Reply: Pierre Abbat: "Re: grayscale"

Note that we use the formula (red+green+blue)/256 for grayscaling (at
least in PS output), but that's not the correct ratio that corresponds to
human colour perception. What is the correct ratio? A quick google
search didn't turn up the result.

pat

• Next message: Hubert Figuiere: "Re: Graphic Images"
• Previous message: Jeremy Teo: "Re: [PATCH] Fix for bug #863"
• Next in thread: Mike Nordell: "Re: grayscale"
• Reply: Mike Nordell: "Re: grayscale"
• Reply: Pierre Abbat: "Re: grayscale"

This archive was generated by hypermail 2b25 : Sat Apr 21 2001 - 00:22:18 CDT