First, I would like to apologize if a lot of this information has been covered in other posts, and trust me I looked around, however it seems that there is not a lot of public information concerning my interests.
I would like to also say that although I am going to focus my questions towards scanner calibration, a lot of information I am trying to seek deals with color profiles in general. I am going to start in small steps here and see if I can get a discussion going.
The fact is I am not happy with the ICC profiles I am generating from IT8 targets. I have a nice scanner, it has a great D-max rating, the specs on its color gamut are impressive, and I have been able to run tests that verify that the manufacturers specifications are indeed correct. I am not going to name the scanner because I want to talk about theory and I dont want specifics to cloud things.
Now, I also have a number of spectrocolorimeters (SCMs), and quite a bit of software ranging from the low-cost consumer space to the high-cost pro market. I am no longer interested in purchasing any more equipment or any more targets, but I am willing to spend more on software if it does what I need. I have a number of IT8 targets, and the correct descriptions. I can take my SCMs and verify that the IT8 descriptions match the Lab values on the actual targets. For the most part, X-Rites profile maker gives me the most accurate profile for my scanner, but it is off in a couple of areas, usually in the yellows. What I would like to do is print / develop my own IT8 target that consists of nothing but shades of yellow, measure the target, and generate my own description file. I would then like to use this yellow-IT8 set to create a second ICC profile and average it with the profile created off the stock IT8 target.
Does anyone have experience building their own IT8 targets, and are there are good tools for generating description files? So far it looks like this is going to be a laborious process of manually editing fields in a text file and converting each Lab value to XYZ, Lch, and then work out the statistical variance by hand.
Does anyone know of any decent software that combines information from multiple profiles? Will this work and will it help me achieve greater accuracy?
Does anyone have a better idea on how to accomplish what I am looking to do? I just really feel that a standard IT8 doesnt have enough data to get the level of accuracy I am looking for, and I have enough printing and measuring equipment that I should be able to come up with a custom solution to improve things.
Thank you for your time!