Method and apparatus for bilateral high pass filter
AssigneeATI Technologies ULC
InventorsMaxim Smirnov, Milivoje Aleksic, Sergiu Goma
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AssigneeATI Technologies ULC
InventorsMaxim Smirnov, Milivoje Aleksic, Sergiu Goma
Estimating the term…
A target pixel and surrounding pixels corresponding to the target pixel are obtained from a digitally represented image. A bilateral high pass filtering kernel is determined based at least in part upon the target pixel and the surrounding pixels. A high pass spatial filtering kernel is provided and multiplied with the high pass photometric filtering kernel to provide a bilateral high pass filtering kernel. The resulting bilateral high pass filtering kernel is thereafter applied to the target pixel and the surrounding pixels to provide a filtered pixel. When it is desirable to combine noise filtering capabilities with sharpening capabilities, the bilateral high pass filter of the present invention may be combined with a bilateral low pass filtering kernel to provide a combined noise reduction and edge sharpening filter. The present invention may be advantageously applied to a variety of devices, including cellular telephones that employ image sensing technology.
A method for filtering at least one pixel of an image, the method comprising:
In a device, a method for receiving an image, the method comprising:
In a device, a method for transmitting an image, the method comprising:
A circuit for filtering at least one pixel of an image, the circuit comprising:
A device capable of filtering an image, the device comprising:
Dependencies are inferred from the claim text.