Method and apparatus for rotating or transposing a binary image

Details Method and apparatus for rotating or transposing a binary image Method and apparatus for rotating or transposing a binary image

1996-06-06

1999-06-15

Moore, David K.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382296, 345126, G06K 932, G09G 534

Patent

active

059129956

ABSTRACT:
A method which may be implemented in a library routine for performing an image transformation. First, a plurality of groups of bits are selected, with each group being from a different row and the rows being aligned in the same column in an image. Next, a logical operation is performed to set to zero all of the bits in the group except for the designated position of the column to be transformed. Finally, each of the groups or rows are compared to a template, and a single bit indicating the result of such comparison is stored in a result register.

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patent: 4837845 (1989-06-01), Pruett et al.
patent: 5111192 (1992-05-01), Kadakia et al.
patent: 5598181 (1997-01-01), Kermisch
patent: 5670982 (1997-09-01), Zhao

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