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A Black-White Representation of a Gray-Scale Picture
February 1974 (vol. 23 no. 2)
pp. 184-186
T.H. Morrin, IBM Advanced System Development Division Laboratory
A hardware-implemented algorithm combining dynamic thresholding and edge detection allows black-white representation of gray-scale images for computer storage. The output resembles a highly detailed sketch, with resolution and contrast superior to a halftone representation. The same algorithm can be applied to text and line drawings, so that all three types of images can be stored using the same compression algorithm.
Index Terms:
Dynamic thresholding, edge detection, image compression, image storage.
Citation:
T.H. Morrin, "A Black-White Representation of a Gray-Scale Picture," IEEE Transactions on Computers, vol. 23, no. 2, pp. 184-186, Feb. 1974, doi:10.1109/T-C.1974.223883
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