Re: [Gimp-user] Bits per channel
On Tuesday 29 September 2009 07:06:52 am Phil Labonte wrote: have looked online on the Gimp site and I am not clear if Gimp supports 16 or 24 or 32 bit images? as far as i know, GIMP processes colors with 16 bit precision when use GEGL is enabled from the colors menu. work is in progress to make it possible to fully support opening saving of 16 bit (or higher?) images. -- ys phani. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Bits per channel
Am Dienstag, den 29.09.2009, 11:48 +0530 schrieb phanisvara das: On Tuesday 29 September 2009 07:06:52 am Phil Labonte wrote: have looked online on the Gimp site and I am not clear if Gimp supports 16 or 24 or 32 bit images? as far as i know, GIMP processes colors with 16 bit precision when use GEGL is enabled from the colors menu. work is in progress to make it possible to fully support opening saving of 16 bit (or higher?) images. Wrong. GEGL uses 32 bit floating point numbers, that gives 128 bit per coloured pixel (with alpha channel). Using 16 bit integers, the maximum intensity of a color channel is 0x. This may lead to temporarily color cropping during multi-step operations, even if the final channel intensity is below 0x. By using floating point numbers, no temorarily cropping will occur. Joerg ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Bits per channel
On Tuesday 29 September 2009 01:05:40 pm Joerg Bergmann em...@jbergmann.de wrote: as far as i know, GIMP processes colors with 16 bit precision when use GEGL is enabled from the colors menu. work is in progress to make it possible to fully support opening saving of 16 bit (or higher?) images. Wrong. GEGL uses 32 bit floating point numbers, that gives 128 bit per coloured pixel (with alpha channel). Using 16 bit integers, the maximum intensity of a color channel is 0x. This may lead to temporarily color cropping during multi-step operations, even if the final channel intensity is below 0x. By using floating point numbers, no temorarily cropping will occur. thank you for clarifying that. i've read about it a while ago and didn't remember correctly. NB: this reply arrived at my personal email address. that doesn't bother me, but other list users won't see it; seems your email client defaults to the wrong adress... -- phani. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Bits per channel
Working with 16 bit per channel images will be great! 16 bits per channel is essential when working with high dynamic range (HDR) images. What is the timeline for 2.10/3.0? Martin Nordholts wrote: On 09/29/2009 03:36 AM, Phil Labonte wrote: Hello, I have looked online on the Gimp site and I am not clear if Gimp supports 16 or 24 or 32 bit images? Can someone point me to the correct answer for Gimp 2.6.7 Hi GIMP 2.6 does not and GIMP 2.8 will not work with higher than 8 bits-per-channel images. GIMP 2.10/3.0 will. BR, Martin ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Bits per channel
On Tue, Sep 29, 2009 at 9:13 PM, Ken Warner kwarner...@verizon.net wrote: Working with 16 bit per channel images will be great! 16 bits per channel is essential when working with high dynamic range (HDR) images. What is the timeline for 2.10/3.0? I believe you'll find that you can only get a meaningful timeline for eg. 2.10 after 2.8 is released. Looking ahead further than 'the release we are currently working towards' is unreliable, especially since all development on GIMP is done by unpaid volunteers. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Bits per channel
Hello, I have looked online on the Gimp site and I am not clear if Gimp supports 16 or 24 or 32 bit images? Can someone point me to the correct answer for Gimp 2.6.7 Thanks ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Bits per channel
On 09/29/2009 03:36 AM, Phil Labonte wrote: Hello, I have looked online on the Gimp site and I am not clear if Gimp supports 16 or 24 or 32 bit images? Can someone point me to the correct answer for Gimp 2.6.7 Hi GIMP 2.6 does not and GIMP 2.8 will not work with higher than 8 bits-per-channel images. GIMP 2.10/3.0 will. BR, Martin -- My GIMP Blog: http://www.chromecode.com/ ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
