Image analysis – Image enhancement or restoration – Variable threshold – gain – or slice level
Patent
1993-06-10
1996-07-16
Couso, Jose L.
Image analysis
Image enhancement or restoration
Variable threshold, gain, or slice level
382112, 382220, G06K 938
Patent
active
055376150
ABSTRACT:
A method of inspecting a pixel for tolerable variation from a corresponding selected pixel in a master image comprises establishing a data word of which the bits each indicate whether or not all the master image pixels in the neighborhood of the selected pixel all have values (i.e. brightness values) within a respective range. A data word representing the value of the inspected pixel is compared simultaneously with the ranges of values associated with the bits of the data word, which provides gating for the comparisons.
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Couso Jose L.
The Governor and Company of the Bank of England
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