Questions on Change Profile
Posted: October 16th, 2022, 1:29 pm
In the Change Profile transformation in addition to names of profiles like Adobe 1998, I find a number of Canon papers listed, e.g. Canon PRO-1000/500 Photo Paper Pro Premium Matte. (I have installed a Canon Pro-1000 printer.)
1. Is the information on the Canon papers in the printer drivers, or rather, where did the information come from?
2. When selecting a paper output in the transformation, does the transformation try to mimic what the input image will look like on the selected paper? At least that is what a simple test suggests. With the working space and monitor profiles set at Adobe RGB 1998 a magenta color (R=200, G=0, B=200) is brilliant on my monitor, but prints as a dull sort of pink where other colors print correctly. The change profile with the output profile set for the printer paper very closely reproduces the dull pink.
3. In general, it seems like the printer drivers tell the printer how much ink to use to make the print "match" the image profile, but the Change Profile seems to do the reverse in that it seems to calculate what the printed image will look like with some fixed allocation of ink amounts. What is really going on or what should I read to understand?
4. What is the relationship between Proofing as described in Color Management and what the Change Profile transformation is doing?
1. Is the information on the Canon papers in the printer drivers, or rather, where did the information come from?
2. When selecting a paper output in the transformation, does the transformation try to mimic what the input image will look like on the selected paper? At least that is what a simple test suggests. With the working space and monitor profiles set at Adobe RGB 1998 a magenta color (R=200, G=0, B=200) is brilliant on my monitor, but prints as a dull sort of pink where other colors print correctly. The change profile with the output profile set for the printer paper very closely reproduces the dull pink.
3. In general, it seems like the printer drivers tell the printer how much ink to use to make the print "match" the image profile, but the Change Profile seems to do the reverse in that it seems to calculate what the printed image will look like with some fixed allocation of ink amounts. What is really going on or what should I read to understand?
4. What is the relationship between Proofing as described in Color Management and what the Change Profile transformation is doing?