Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2002-10-11
2008-10-14
Do, Anh Hong (Department: 2627)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C382S167000
Reexamination Certificate
active
07437016
ABSTRACT:
An image (300) comprising a plurality of image elements defined by a first set of vectors in a first color space is enhanced by calculating a principal component transform from the image elements (step830). The image (300) is converted (step310) to a second color space such as HSI wherein the image elements are defined by a second set of vectors having an intensity component. A principal component value is calculated for each of the image elements using the principal component transform, and the intensity component of the second set of vectors is replaced (step840) with the principal component value to produce an enhanced image. The enhanced image may be converted back to the first color space for display on a suitable display device.
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patent: 6410872 (2002-06-01), Campbell et al.
patent: 6870962 (2005-03-01), Lee et al.
Czerwinski et al., “Linear Feature Enhancement by False Color”, IEEE, vol. 2, Nov. 1996, pp. 1427-1431.
R. C. Gonzalez et al.,Digital Image Processing,The Image Processing Handbook, 2ndEdition, CRC Press, pp. 173-181.
Do Anh Hong
Gottlieb Rackman & Reisman P.C.
Polartechnics Limited
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