[Lcms-user] Lab-Lab spac conversion?

2005-05-25 Thread Kai-Uwe Behrmann
Hi, I looked at the spec and it says nothing about the above conversion in a colour space profile. Is Lab not valid as source colour space? Lcms seems to use the A2B0/B2A0 table pair only in one direction, ignoring in the other. The result is string hue casts while the gray axis remains

Re: [Lcms-user] Lab-Lab spac conversion?

2005-05-25 Thread Marti
The problem is, lcms cannot guess which direction to use. Let's imagine you have a input profile from RGB to Lab, and then you connect the colorspace profile after that, finally you have an output profile implementing Lab -RGB Which direction to use? Well, lcms line of reasoning is

Re: [Lcms-user] Lab-Lab spac conversion?

2005-05-25 Thread Kai-Uwe Behrmann
Am 25.05.05, 10:04 +0200 schrieb Marti: The problem is, lcms cannot guess which direction to use. Let's imagine you have a input profile from RGB to Lab, and then you connect the colorspace profile after that, finally you have an output profile implementing Lab -RGB Which direction to

Re: [Lcms-user] RGB - RGB, printing, GDI and CMYK

2005-05-25 Thread Louis Solomon [SteelBytes]
... GCAPS_CMYKCOLOR flag in DEVINFO ... very interesting ... thanks I've just added a check for this via GetDeviceCaps(printerdc,COLORMGMTCAPS) and am logging it along with PRINTER_INFO_2.pDriverName in the anonymous stats that one of my comerical apps use ... it will be interesting to see