Image analysis – Image enhancement or restoration – Variable threshold – gain – or slice level
Reexamination Certificate
2011-02-01
2011-02-01
Bali, Vikkram (Department: 2624)
Image analysis
Image enhancement or restoration
Variable threshold, gain, or slice level
C382S274000, C382S261000, C358S466000
Reexamination Certificate
active
07881553
ABSTRACT:
An image processing apparatus includes a threshold selecting unit that selects a threshold based on an input gray-scale value of the target pixel. When a degree of flexibility is defined as representing a degree of the number of pixels that can take different output values as a result of threshold processing on the pixels with the same input gray-scale value, the threshold selecting unit selects a threshold from at least two types of thresholds associated with pixel positions and having the same period and different degrees of flexibility.
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Bali Vikkram
Blakely , Sokoloff, Taylor & Zafman LLP
Entezari Michelle
Ricoh & Company, Ltd.
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