[Gegl-developer] babl roadmap ever so slightly updated

2014-11-16 Thread Øyvind Kolås
A note that the babl roadmap towards enabling use of multiple working/sensor/target RGB spaces in a single GEGL graph has been slightly updated. Now also mentions why accumulating floating point errors if more conversions than desired happens isn't a real concern with current photo technology

Re: [Gegl-developer] babl roadmap: How do you know which images are sRGB images?

2014-10-14 Thread Elle Stone
On 10/13/2014 06:36 PM, Elle Stone wrote: How do you plan to tell when an image is an sRGB image and when it's not an sRGB image? The roadmap specifies 24 different formats for sRGB images and 24 additional formats for non-sRGB images. Presumably the 24 additional formats for non-sRGB

Re: [Gegl-developer] babl roadmap: How do you know which images are sRGB images?

2014-10-14 Thread Øyvind Kolås
On Tue, Oct 14, 2014 at 11:20 AM, Elle Stone ellest...@ninedegreesbelow.com wrote: On 10/13/2014 06:36 PM, Elle Stone wrote: How do you plan to tell when an image is an sRGB image and when it's not an sRGB image? The roadmap specifies 24 different formats for sRGB images and 24 additional

Re: [Gegl-developer] babl roadmap

2014-10-13 Thread Elle Stone
The planned architecture as outline in babl/docs/roadmap.txt will likely collapse under its own weight. If the devs are determined to pursue this course to the bitter end, here are some considerations regarding encoding trc_gamma as double (you really can't do this): //begin quote from the

Re: [Gegl-developer] babl roadmap

2014-10-13 Thread Elle Stone
The sRGB as PCS architecture outline in babl/docs/roadmap.txt will likely collapse under its own weight. The roadmap should be amended to reflect a more accurate assessment of the amount of work the planned architecture will entail. The babl roadmap says: Babl currently only supports formats

Re: [Gegl-developer] babl roadmap

2014-10-13 Thread Øyvind Kolås
On Mon, Oct 13, 2014 at 8:19 PM, Elle Stone ellest...@ninedegreesbelow.com wrote: The sRGB as PCS architecture outline in babl/docs/roadmap.txt will likely collapse under its own weight. The roadmap should be amended to reflect a more accurate assessment of the amount of work the planned

Re: [Gegl-developer] babl roadmap

2014-10-13 Thread Elle Stone
On 10/13/2014 03:25 PM, Øyvind Kolås wrote: On Mon, Oct 13, 2014 at 8:19 PM, Elle Stone ellest...@ninedegreesbelow.com wrote: As the purpose of the roadmap seems to be guiding future development, the list of editing operations that rely on the chromaticities of the RGB working space needs to

[Gegl-developer] babl roadmap: How do you know which images are sRGB images?

2014-10-13 Thread Elle Stone
According to the babl roadmap, sRGB images won't need special-case treatment. But every time the user opens an image that isn't an sRGB image, special-case treatment will be required for chromaticity-dependent editing operations. How do you plan to tell when an image is an sRGB image and

[Gegl-developer] babl roadmap

2014-10-12 Thread Elle Stone
The planned architecture as outline in babl/docs/roadmap.txt will likely collapse under its own weight. But if the devs are determined to pursue this course to the bitter end, here are some suggestions regarding white_reference: //begin quote . . . permitting at least linear formats with