Alias avoidance in image processing

Details Alias avoidance in image processing Alias avoidance in image processing

2011-08-16

2011-08-16

Ahmed, Samir A (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C382S199000, C348S448000, C348S452000

Reexamination Certificate

active

08000534

ABSTRACT:
An image processing apparatus in which output pixel values are generated with respect to pixels of an input image selected in accordance with an image feature direction in the input image. The apparatus includes a mechanism comparing blocks of pixels of the input image, the blocks being disposed with respect to a pixel position under test so that a correlation between the blocks would indicate an image feature direction applicable to that pixel position; and a mechanism detecting the image feature direction applicable to the pixel position under test as a direction corresponding to a block comparison for blocks having the highest correlation amongst blocks having block contents meeting one or more predetermined criteria.

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