Image analysis – Image compression or coding – Gray level to binary coding
Patent
1996-12-23
1998-09-29
Rogers, Scott
Image analysis
Image compression or coding
Gray level to binary coding
382270, 382172, 358456, 358466, H04N 1405
Patent
active
058156062
ABSTRACT:
A method for thresholding a gray scale matrix representative of an image to generate binary matrix representative of the image. Elemental features of the image are determined and characterized, and a plurality of thresholding algorithms is selected. For each algorithm a sequence of binary matrices is generated as scaling factor applied to the algorithm is varied. Features of each binary matrix are determined and characterized and compared to elemental features of the image. For each determined feature which matches a an elemental feature of the image a score is incremented; and for each determined feature which does not match the score is decremented. The binary matrix having the highest score is selected.
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Baker Walter J.
Heiden Gary M.
Pitney Bowes Inc.
Reichman Ronald
Rogers Scott
Scolnick Melvin J.
Whisker Robert H.
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