Grayscale image de-speckle algorithm

Details Grayscale image de-speckle algorithm Grayscale image de-speckle algorithm

2006-04-18

2006-04-18

Mehta, Bhavesh M. (Department: 2625)

Image analysis

Image enhancement or restoration

C382S260000, C382S275000, C358S003270, C358S463000

Reexamination Certificate

active

07031543

ABSTRACT:
An annular window-shaped structuring element is provided for image processing to remove speckles from a scanned image. The window-shaped structuring element is composed of two differently sized squares sharing the same geometric center-point. The pixel to be analyzed with the structuring element is at the center-point. The structuring element is used in a method to remove speckles from binary, grayscale, and/or color images by first eroding the image, detecting speckles relative to other pixels in the image, and removing declared speckles. The method may additionally include a halftoning module to protect halftone images.

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