19 December 1985 PC-Based Image Processing With Half Toning
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A versatile and useful personal computer-based procedure to generate halftone representation of digitized image data is presented. This feature provides limited interactive image processing capability for a basic personal computer work station without having to acquire a video monitor and a digital-to-analog converter board. The generated halftone images can be displayed on the standard dot-addressable graphics monitor and/or they can be printed out on regular paper via an associated printer. The halftoning procedure is based on an error diffusion technique in which dots are produced randomly, one at a time, based on both the local grey level value and some accumulated measure of the error due to previous assignments. The key elements in halftoning such as dynamic, spatial, and display medium resolutions are defined and the mathematical correspondence among them are established.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John A. Saghri, John A. Saghri, Hsieh S. Hou, Hsieh S. Hou, Andrew G. Tescher, Andrew G. Tescher, } "PC-Based Image Processing With Half Toning", Proc. SPIE 0575, Applications of Digital Image Processing VIII, (19 December 1985); doi: 10.1117/12.966506; https://doi.org/10.1117/12.966506


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