Photographic and Photomechanical Aspects of Electronic Color Correction.

A review of the RCA Electronic Color Correction process is presented with emphasis on its photographic and photomechanical aspects. In order that full advantage of the method may be realized, photographic separations must meet certain specifications, and the corrected recordings must be processed by a procedure standardized by the user. Photographic separation requirements are discussed and data illustrating the techniques used to obtain the separations are presented. Flexibility in processing electronically scanned plates is obtained through the introduction of an experimentally derived tone compensating curve in the recording of the output information. Thus an overall linear tone reproduction will result if the scanned recordings are processed by the procedure used in deriving the distortion curve. Data illustrating this procedure will be presented.