Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2011-08-23
2011-08-23
Kassa, Yosef (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S274000, C382S275000, C382S282000, C358S003260, C358S003270, C358S463000
Reexamination Certificate
active
08005311
ABSTRACT:
An image processing apparatus includes a filter processing unit configured to perform filter processing that emphasizes high-frequency components of an input image, a value limit calculation unit configured to calculate value limits that define a range of pixel values for converting a gradation in the image using a result of the filter processing, a limitation unit configured to limit the filter-processed pixel values based on the value limits, and a conversion unit configured to convert the pixel values so that the image having pixel values limited by the limitation unit is adjusted to a converted gradation of different graduation level than the input image. An image processing method and program are also disclosed.
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Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Kassa Yosef
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