A model of the imaging process involving both the checkerboard process and the analog process of imaging has been developed to describe both the granularity and the grey scale characteristics of the microencapsulated imaging process. The model is shown to provide a quantitative rationale of sensitometric and microdensitometric behavior of the system. The results of the analysis demonstrate that while the analog process governs the grey scale character of capsule images, there is a significant contribution from the digital process. This digital process manifests itself primarily in the granularity characteristics of the image and, except in special cases, contributes relatively little to the grey scale of the image.

Date of creation, presentation, or exhibit



Hard Copy and Printing Materials, Media, and Processes: Proceedings of SPIE 1253 (1990) 252-263 The authors express their sincere appreciation to Dr. L. Feldman and Dr. E. Saccocio for their continued insistance that we 'look at spots'. Thanks also to P. Engeidrum for technical guidance and for not asking "what's a chemist like you doing on a project like this?" Thanks also to Dan Dillard for assisting with the microdensitometric measurements.Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type

Conference Proceeding

Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


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