Building High Quality Profiles
Posted: Wed Feb 03, 2010 9:12 pm
Hello,
I'm in the process of building profiles for all of my cameras, and have a question on quality with the Auto Profile with Calibration Target.
I'm shooting them on my LCD on a tripod, out of focus. I would shoot all of the ISO range, and they all look the same in terms of image brightness. For some of the profiles, the quality is 95%. But for some of the ISO (eg. Canon D10 @ ISO80 and 800), the quality is low. I would get 76% quality, and "area not uniform in Cb channel message (uniformity 95%/100%/41%). If using the same jpg, I use Auto Profile with Regular Image, I would get 96% quality, with 99%/100%/100% uniformity.
Should I use the Auto with Cal. target or Auto with Reg. Image?
With my S90, for ISO80 I only get 47% quality, and the message saying it can't find an uniform area. The "same" image shot at ISO640 (similar brightness), I get 96%.
What exactly am I doing wrong?
Thanks.
I'm in the process of building profiles for all of my cameras, and have a question on quality with the Auto Profile with Calibration Target.
I'm shooting them on my LCD on a tripod, out of focus. I would shoot all of the ISO range, and they all look the same in terms of image brightness. For some of the profiles, the quality is 95%. But for some of the ISO (eg. Canon D10 @ ISO80 and 800), the quality is low. I would get 76% quality, and "area not uniform in Cb channel message (uniformity 95%/100%/41%). If using the same jpg, I use Auto Profile with Regular Image, I would get 96% quality, with 99%/100%/100% uniformity.
Should I use the Auto with Cal. target or Auto with Reg. Image?
With my S90, for ISO80 I only get 47% quality, and the message saying it can't find an uniform area. The "same" image shot at ISO640 (similar brightness), I get 96%.
What exactly am I doing wrong?
Thanks.