Image analysis – Image enhancement or restoration – Artifact removal or suppression
Patent
1996-10-01
2000-06-20
Lee, Thomas D.
Image analysis
Image enhancement or restoration
Artifact removal or suppression
382228, G06K 900
Patent
active
060786973
ABSTRACT:
A method and apparatus are disclosed for processing image information for identifying an image type of a current pixel for rendering the current pixel in accordance with a rendering operation suited for the identified type. Each current pixel is examined in accordance with first predetermined criteria. In response to this examination, for each of plural image types, there is generated a signal representing a probability related value that the current pixel is of that image type. Based on probability related values, the image type of the current pixel is determined. However, for some current pixels a first signal is generated representing a preliminary evaluation that the image type is indeterminate relative to assignment to one of plural respective image types. There is then provided an evaluation for the indeterminate current pixel in accordance with second predetermined criteria. In response to such an evaluation there may be generated a second signal representing assignment of the indeterminate current pixel to one of the plural respective image types. For certain current pixels not able to be assigned to a respective image type, there may be provided a rendering process for rendering such pixels differently from pxiels rendered in accordance with an identified image type.
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Brinich Stephen
Eastman Kodak Company
Lee Thomas D.
Rushefsky Norman
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