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From: James Bruce <bruce@andrew.cmu.edu>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/16] vt-pure-colors.diff
Date: Sun, 01 Apr 2007 14:39:24 -0400	[thread overview]
Message-ID: <460FFC5C.8090200@andrew.cmu.edu> (raw)
In-Reply-To: <Pine.LNX.4.61.0704012002330.12316@yvahk01.tjqt.qr>

Jan Engelhardt wrote:
> Have the Linux kernel set a new VGA palette for the first 16 colors.
> The new values reduce the saturation (white component) and therefore
> increase contrast.
<snip>

While the patch seems fine, this comment is not correct.  The patch is 
decreasing the *brightness* in order to *increase* saturation. 
Saturation[1] is the deepness of a color, not the white component 
(brightness, lightness).

  - Jim Bruce

[1] http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC6

  reply	other threads:[~2007-04-01 19:00 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-01 18:13 [PATCH 0/16] Assorted patches Jan Engelhardt
2007-04-01 18:13 ` [PATCH 1/16] vt-sysfs-for-colors.diff Jan Engelhardt
2007-04-02  6:49   ` Antonino A. Daplas
2007-04-02  7:31     ` [PATCH 17/16] Do not reset UTF8 on terminal reset Jan Engelhardt
2007-04-02  9:30       ` Antonino A. Daplas
2007-04-02 11:26       ` Paul LeoNerd Evans
2007-04-02 11:44         ` Antonino A. Daplas
2007-04-02 11:54           ` Paul LeoNerd Evans
2007-04-02 12:47             ` Antonino A. Daplas
2007-04-02 13:20               ` Paul LeoNerd Evans
2007-04-02 13:34               ` Jan Engelhardt
2007-04-02 18:50       ` Pavel Machek
2007-04-01 18:14 ` [PATCH 2/16] vt-pure-colors.diff Jan Engelhardt
2007-04-01 18:39   ` James Bruce [this message]
2007-04-02  6:49   ` Antonino A. Daplas
2007-04-02  7:04     ` Jan Engelhardt
2007-04-02  7:50       ` Antonino A. Daplas
2007-04-02  8:01         ` Jan Engelhardt
2007-04-01 18:14 ` [PATCH 3/16] vt-underline-color.diff Jan Engelhardt
2007-04-02  5:37   ` Andrew Morton
2007-04-02  6:57   ` Antonino A. Daplas
2007-04-01 18:14 ` [PATCH 4/16] vt-printk-color.diff Jan Engelhardt
2007-04-01 18:14 ` [PATCH 5/16] fix-kthread-niceness.diff Jan Engelhardt
2007-04-02  5:39   ` Andrew Morton
2007-04-01 18:15 ` [PATCH 06/16] isofs-add-write-bit.diff Jan Engelhardt
2007-04-01 18:15 ` [PATCH 07/16] kconfig-dynamic-frequency.diff Jan Engelhardt
2007-04-01 18:39   ` Kyle Moffett
2007-04-01 18:42     ` Jan Engelhardt
2007-04-01 18:52       ` Kyle Moffett
2007-04-01 19:01         ` Jan Engelhardt
2007-04-01 19:42           ` [PATCH] Kyle Moffett
2007-04-01 19:47             ` [PATCH] Jan Engelhardt
2007-04-01 20:07               ` [PATCH] Kyle Moffett
2007-04-01 19:50             ` [PATCH] Add a CONFIG_I_KNOW_WHAT_THE_HELL_I_AM_DOING variable Kyle Moffett
2007-04-01 23:03             ` [PATCH] Andi Kleen
2007-04-01 20:22         ` [PATCH 07/16] kconfig-dynamic-frequency.diff Robert P. J. Day
2007-04-01 18:15 ` [PATCH 08/16] console-printk-level.diff Jan Engelhardt
2007-04-01 19:07   ` Randy Dunlap
2007-04-01 18:15 ` [PATCH 09/16] zlib-decompression-status.diff Jan Engelhardt
2007-04-02 17:48   ` Jörn Engel
2007-04-02 18:50     ` Jan Engelhardt
2007-04-01 18:15 ` [PATCH 10/16] show-partitions-on-mount-error.diff Jan Engelhardt
2007-04-02  5:47   ` Andrew Morton
2007-04-02  5:48   ` Andrew Morton
2007-04-02  7:01     ` [PATCH 10/16] show partitions on mount error Jan Engelhardt
2007-04-02 18:59   ` [PATCH 10/16] show-partitions-on-mount-error.diff Pavel Machek
2007-04-04  0:42     ` Jan Engelhardt
2007-04-01 18:16 ` [PATCH 11/16] samba-eintr-fix.diff Jan Engelhardt
2007-04-01 19:09   ` Dave Jones
2007-04-01 19:28     ` Jan Engelhardt
2007-04-01 19:42       ` Dave Jones
2007-04-02  5:53   ` Andrew Morton
2007-04-01 18:16 ` [PATCH 12/16] cifs-use-mutex.diff Jan Engelhardt
2007-04-02  5:36   ` Roland Dreier
2007-04-01 18:17 ` [PATCH 13/16] show-pipesize-in-stat.diff Jan Engelhardt
2007-04-02  5:58   ` Andrew Morton
2007-04-02  6:48     ` Jan Engelhardt
2007-04-02 10:41   ` Eric Dumazet
2007-04-04  0:48     ` Jan Engelhardt
2007-04-04  5:03       ` Eric Dumazet
2007-04-17  8:05         ` Jan Engelhardt
2007-04-01 18:17 ` [PATCH 14/16] kconfig-allow-override.diff Jan Engelhardt
2007-04-01 18:44   ` Sam Ravnborg
2007-04-01 19:09     ` Randy Dunlap
2007-04-01 18:18 ` [PATCH 15/16] use-regular-eth-suffix.diff Jan Engelhardt
2007-04-01 18:42   ` Kyle Moffett
2007-04-02  1:40   ` Jouni Malinen
2007-04-01 18:18 ` [PATCH 16/16] warn-on-kthread-name-truncation.diff Jan Engelhardt
2007-04-02  6:00   ` Andrew Morton
2007-04-02  6:51     ` Jan Engelhardt

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