Production Process of Output Device ICC Profile
Take the printing equipment as an example: Explain the production of the output equipment ICC profile.
1 Calibration
Prior to the official printing of the IT8.7/3 color standard, the use of a control strip tool to calibrate the printing equipment mainly referred to the solid density and dot coverage. The environment and production conditions of the printing press are required to be stable. For example, the field density and dot coverage in the formal production must be consistent with the printing of the IT 8.7/3 color standard. Only the ICC profile generated in this way can accurately reflect this. The color characteristics of the press.
2 Printing IT8.7/3 color standard
The IT8.7/3 color standard is output and proofed by printing. In addition, the film output and printing process are adjusted to the standard state.
3 Generate ICC profile in ICC profile creation software
Run ICC profile creation software, select measurement options, generally online automatic measurement, scanning spectrophotometer is driven, follow the prompts for IT8.7/3 print sample color measurement, after the measurement is completed, the software will measure the color The degree data corresponds to the CMYK data of the color patch in the color standard. After the software generates the ICC characteristic file of the output device, the ICC characteristic file is saved.
Unlike a scanner that has only one ICC profile, a printer may have multiple ICC profile files because if the paper, ink, dot, and environmental conditions change, it will affect the color. Therefore, it must be Produce multiple ICC profiles for different paper and ink combinations to meet production needs.
If each device associated with color reproduction has an ICC profile, it provides the necessary basis for the consistency of color reproduction. The following is only the soft proofing of the screen to illustrate the importance of ICC profiles in color reproduction.
A color job must undergo a proofing process before it is officially printed. One of the functions of proofing is to check the quality of the color on the proof. If errors can be found before the official printing, the cost can be reduced. The preview can be previewed through the display to the actual printing. What color effect?
The mechanism of display and printing reproduction is very different. The three colors of red, green and blue are generated on the screen of the monitor. They are colored according to the color light mixing mode, and the four colors used are yellow, magenta, cyan and black. Ink is based on the color mixture mode; at the same time, the color gamut of the two devices is also different. Therefore, the color seen on the display actually has a large difference with the color on the final print.
