Hi Mark,
Fixed in git. I have also added Lab+alpha formatters to lcms2.h default list. Regards Marti Quoting Mark <d...@cine-scan.com>: > Great, many thanks! > > > BTW: > I'm just in the middle of updating some Cocoa wrapper classes to use > LCMS 2.0. > Since the "internals" of LCMS changed a lot from 1.x to 2.x some > refactoring is needed. > > But the new concept of Pipelines is awesome! > > Thank's a lot Marti. This is an awesome library. > > Best regards > Mark > > > On 29.05.2010, at 15:57, marti.ma...@littlecms.com wrote: > >> >> Hi Mark, >> >> I see. The formatter selection code does revert >> your types to the generic formatter instead of >> using the Lab template. As a result Lab space >> is encoded in range 0..1.0 instead of 0..100, >> -127...+128. >> >> Ok, it may be regarded as a bug, and I have it >> already fixed. Will commit the changes on git >> probably on monday, as right now the server >> where I keep the sandbox is down. >> >> Thanks for reporting. >> Marti >> >> >> >> Quoting Mark <d...@cine-scan.com>: >> >>> Hi, >>> >>> I'd like to use 16 byte float pixels for RGA, Lab and XYZ >>> conversions - so I tried defining these: >>> >>> #define TYPE_XYZA_FLT >>> (FLOAT_SH(1)|COLORSPACE_SH(PT_XYZ)|EXTRA_SH(1)|CHANNELS_SH(3)|BYTES_SH(4)) >>> #define TYPE_LabA_FLT >>> (FLOAT_SH(1)|COLORSPACE_SH(PT_Lab)|EXTRA_SH(1)|CHANNELS_SH(3)|BYTES_SH(4)) >>> #define TYPE_RGBA_FLT >>> (FLOAT_SH(1)|COLORSPACE_SH(PT_RGB)|EXTRA_SH(1)|CHANNELS_SH(3)|BYTES_SH(4)) >>> >>> But it looks like something is wrong. >>> >>> Using the LCMS built in formats (TYPE_RGB_FLT, TYPE_XYZ_FLT, >>> TYPE_Lab_FLT) I get the following: >>> >>> sRGB -> XYZ -> sRGB >>> 1.000000, 1.000000, 1.000000 >>> 0.964200, 1.000000, 0.824900 >>> 1.000000, 1.000000, 1.000000 >>> >>> sRGB -> Lab -> sRGB >>> 1.000000, 1.000000, 1.000000 >>> 100.000000, 0.000008, -0.000008 >>> 1.000000, 1.000000, 1.000000 >>> >>> Lab -> XYZ -> Lab >>> 100.000000, 0.000000, 0.000000 >>> 0.964200, 1.000000, 0.824900 >>> 100.000000, 0.000008, 0.000008 >>> >>> >>> Using the formats I defined (TYPE_XYZA_FLT, TYPE_LabA_FLT, TYPE_RGBA_FLT): >>> >>> sRGB -> XYZ -> sRGB >>> 1.000000, 1.000000, 1.000000, 0.000000 >>> 0.482107, 0.500008, 0.412456, 0.000000 >>> 1.000000, 1.000000, 1.000000, 0.000000 >>> >>> sRGB -> Lab -> sRGB >>> 1.000000, 1.000000, 1.000000, 0.000000 >>> 1.000000, 0.501961, 0.501961, 0.000000 >>> 1.000000, 1.000000, 1.000000, 0.000000 >>> >>> Lab -> XYZ -> Lab >>> 100.000000, 0.000000, 0.000000, 0.000000 >>> 307598.437500, 321873.781250, 271461.625000, 0.000000 >>> 100.000000, -0.000001, 0.000000, 0.000000 >>> >>> Any ideas what I'm doing wrong? >>> >>> Thanks >>> Mark >>> >>> >>> >> >> > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Lcms-user mailing list > Lcms-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lcms-user > ------------------------------------------------------------------------------ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
