System or method for enhancing an image

Details System or method for enhancing an image System or method for enhancing an image

2005-08-25

2009-02-17

Kassa, Yosef (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S275000, C382S284000, C382S294000, C358S003260, C358S003270

Reexamination Certificate

active

07492962

ABSTRACT:
A system and method for enhancing the contrast within an image. An enhanced image can be generated in a real-time or substantially real-time manner from an initial image. A low-contrast image is enhanced, including the visibility of text within the low-contrast image. A logarithm transform method is used to enhance the overall contrast and visibility within the image. A power transform method is used to enhance the visibility and contrast of written text, symbols and other forms of signs within the enhanced image.

REFERENCES:
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patent: 7130486 (2006-10-01), Eggers et al.
patent: 7307793 (2007-12-01), Ottney et al.
patent: 7315241 (2008-01-01), Daily et al.
patent: 2004/0042676 (2004-03-01), Srinivasa
patent: 2004/0145674 (2004-07-01), Hoppe et al.
European Patent Office Communication for Application No. 06076559.1-2218, dated Sep. 26, 2007, 8 pages.
EP Search Report dated Oct. 10, 2006.

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