Details:
Summary:
A thorough understanding of electronic color scanners and their interaction with photographic materials is important for optimal reproduction of pictures on the printed page. A computer-assisted data-gathering system has been designed and assembled for use in analyzing color scanners. Examples are given of the system's use as a tool for determining how separation signals are affected by the various types of controls available to the scanner operator. These examples are related to practical experience in using the scanner. The interface between the scanner and input films or papers has been studied. Several problems are considered that are frequently encountered in making separation. These problems are explained in context of a model of the scanner's spectral response. Finally, a method is described for using this model and the data-gathering systems to determine the filtration necessary to correct these difficulties in the reproduction process. The interface between the scanner and input films or papers has been studied. Several problems are considered that are frequently encountered in making separation. These problems are explained in context of a model of the scanner's spectral response. Finally, a method is described for using this model and the data-gathering systems to determine the filtration necessary to correct these difficulties in the reproduction process.