Color Correction by Electronic Scanning.

The method of electronic color correction developed by Interchemical Corporation with the aid of Professor Arthur C. Hardy of the Massachusetts Institute of Technology will be described. This method of color correction has been especially designed to take into account the variable dot sizes of the printing members employed in the more widely used processes of the graphic arts. It will be shown that this electronic correction device is essentially a simulator, which simulates electronically the steps of flat etching, proofing, re-etching, reproofing, etc.; comparing the results at every stage with the original; and introducing corrections automatically so that the dot sizes of the final plates will be those necessary to insure that the reproduction faithfully matches the original.