From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 7DE57139A8D for ; Tue, 8 Sep 2015 18:42:23 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BC35B1427B; Tue, 8 Sep 2015 18:42:13 +0000 (UTC) Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id B02FE14212 for ; Tue, 8 Sep 2015 18:42:12 +0000 (UTC) Received: by wiclk2 with SMTP id lk2so130920934wic.0 for ; Tue, 08 Sep 2015 11:42:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:reply-to:to:subject:date:user-agent:mime-version:content-type :content-transfer-encoding:message-id; bh=w32qEQHgD2pwR4saE2n8yVskilUpxBxrnWeivkhQCOM=; b=hd6RqXekntzJDr+dwWCT+fyamtHMPtVjtfcIGCeO+GZu1nzmNyaIeszXoMTVYorHjN EQHqsrfPktiuKVAyMwYJNqF+SurR7oBwHozMin4YeysF1z+ZqgUeAbuZZrqBY3/UZX3p f4OH2d/KvgwF+gDq2dGByXdjWiZeOglnJBrzKehPUhCtFcag18ojkR59E33ShCAPSkhQ e3R4UbAaL4FxrBpJOfzW0aiy+MLFX20O5vEtyULtqo3c/Hr7ZS0ypwFAzmSM5KzjCzIw Btkb1GOmsSec9hNCsIa4Km9Lwy5rc+uZVPfTcPrwNFxMVmGKTZUjjbV6jXHPTeOUYUYW bf/A== X-Received: by 10.180.19.9 with SMTP id a9mr48312989wie.5.1441737731487; Tue, 08 Sep 2015 11:42:11 -0700 (PDT) Received: from dell_xps.localnet (230.3.169.217.in-addr.arpa. [217.169.3.230]) by smtp.gmail.com with ESMTPSA id gt10sm6207040wib.20.2015.09.08.11.42.10 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 08 Sep 2015 11:42:10 -0700 (PDT) From: Mick To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] CMYK comparison to sRGB between platforms Date: Tue, 8 Sep 2015 19:42:08 +0100 User-Agent: KMail/1.13.7 (Linux/4.0.5-gentoo; KDE/4.14.8; x86_64; ; ) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2359411.8LlkSWVu7P"; protocol="application/pgp-signature"; micalg=pgp-sha256 Content-Transfer-Encoding: 7bit Message-Id: <201509081942.10580.michaelkintzios@gmail.com> X-Archives-Salt: 40769b88-2774-48f9-b228-ba93a8fb6ac4 X-Archives-Hash: 2c32faabade5ce8f2940ca7e5f684524 --nextPart2359411.8LlkSWVu7P Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On the same hardware I noticed that a CMYK photograph converted to sRGB loo= ked=20 mostly the same (indistinguishable) on Linux, but the sRGB colours were=20 brighter on MSWindows. I tried this by dual booting between MSWindows and Linux. Then I tried it by running MSWindows within a VM on a Linux host and the=20 MSWindows showed a clear difference in brightness between the two formats. =46inally, I checked on an AppleMac and the difference between the CMYK and= sRGB=20 photographs was even more prominent than MSWindows. So, the Linux renedering seems to be misleading the user. Have you noticed= =20 the same? BTW, both Linux machines that I tried this on are running radeon drivers - = are=20 these to blame? The AppleMac is running Intel graphics with its 'retina'=20 monitor. Is it a matter of somehow tuning the Xorg settings on my Linux PC= s? =2D-=20 Regards, Mick --nextPart2359411.8LlkSWVu7P Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJV7ywCAAoJELAdA+zwE4YexCgH/38l2Inc2qPkmWUMkX3ojqJn VJ7JYUibbOAHODJEsmyWT8danDNNW6kmFZ5dj+kRoCNDPseMzY0/qEsUWnprKWS+ bLA/nKBv1IMcG6C97MC5ifQqdYSlTIBpAH9L7eenWAAwXp9ss1SA5Oq6IC9pxGzh RPHTRTB4zDHvXJ2VUp6bGRcoGrnQVnZ/QDQ3a+qYN33zYlTEwbyeg/an2sIm+qpf fVGbri08tJ7SiDAg6+4x/BHqQUjA4+Y1oa/3oo3ouzniCtldNO5FtOxA35EG9xOH YjsQjPazpx2k/iOkVGYLQUrDS8tp6RqVT5ZXRMbNpR9wRYSY1pmJowtBFgGYd5s= =EeI3 -----END PGP SIGNATURE----- --nextPart2359411.8LlkSWVu7P--