Image analysis – Image enhancement or restoration – Edge or contour enhancement
Reexamination Certificate
2005-03-29
2005-03-29
Patel, Kanjibhai (Department: 2625)
Image analysis
Image enhancement or restoration
Edge or contour enhancement
C382S252000, C382S260000, C382S269000, C358S003260, C358S003270, C358S003050
Reexamination Certificate
active
06873741
ABSTRACT:
Methods and apparatus for digital data array edge enhancement are disclosed. A local data window containing a data sample s is selected. Minimum and maximum sample values, max and min, are located within the window, and an edge deflection value ed is defined to have a value between max and min. A diffusion quantity is then calculated to move the value of s towards max, if s is greater than ed, or towards min, if s is smaller than ed. This approach has advantages over gradient-based edge-enhancement, including simplicity, convergence speed, and stability.
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Kassa Yosef
Marger & Johnson & McCollom, P.C.
Patel Kanjibhai
Sharp Laboratories of America
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