Image analysis – Image transformation or preprocessing
Patent
1995-11-27
1998-09-01
Boudreau, Leo H.
Image analysis
Image transformation or preprocessing
382294, 382305, 364715, 395501, 395513, 395524, 395525, 395615, 395855, G06K 936, G06K 932, G06K 954, G06K 900
Patent
active
058022198
ABSTRACT:
In a processor, a method for performing table-lookup transformation through a look-up table a source image having a plurality of source pixels to derive a destination image having a plurality of destination pixels. The method includes the step of deriving, for each value in a source pixel of the plurality of source pixels, a look-up result. The aforementioned look-up result represents a value in a corresponding destination pixel of the plurality of destination pixels. The method further includes the steps of loading a plurality of the look-up results into a plurality of graphics registers in the processor and accumulating the plurality of the look-up results in the plurality of graphics registers into an accumulation register in the processor. Additionally, there is also provided the step of storing the accumulation register into the destination image.
REFERENCES:
patent: 4839801 (1989-06-01), Nicely et al.
patent: 4933878 (1990-06-01), Guttag et al.
patent: 5204958 (1993-04-01), Cheng et al.
patent: 5487022 (1996-01-01), Simpson et al.
Farkas Peter
Howell Stephen K.
Rice Daniel S.
Boudreau Leo H.
Mariam Daniel G.
Sun Microsystems Inc.
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