G - Physics – 09 – G
Patent
G - Physics
09
G
375/4
G09G 3/00 (2006.01) G06T 3/40 (2006.01) H04N 1/393 (2006.01)
Patent
CA 1241133
ABSTRACT OF THE DISCLOSURE The method of the present invention reduces a binary digital image in size by a factor F by a method including the steps of: storing the image in bit sequence; removing one or more rows of bits along the vertical axis of the image to convert i rows of bits to j rows of bits where 0.5i<=j<i; modifying a line adjacent to each line discarded to preserve selected information from the discarded line; repeating the steps of removing and modifying a predetermined number of times to achieve a re- duction by a factor F1 along the vertical axis; rotating the image in a first direction by ninety degrees; removing one or more rows of bits along the original horizontal axis of the image to con- vert i rows of bits to j rows of bits where 0.5i<=j<i; modifying a line adjacent to each line discarded to preserve selected information from the discarded line; repeating the steps of removing and modifying a predetermined number of times to achieve a reduction by a factor F2 along the ori- ginal horizontal axis; rotating the image back to its original orientation; storing the reduced size image generated by the above steps. YO984-088
481998
Anderson Karen L.
Mintzer Frederick C.
International Business Machines Corporation
Rosen Arnold
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