Method for restoring faded photographs and film

Details Method for restoring faded photographs and film Method for restoring faded photographs and film

2007-09-18

2007-09-18

Kassa, Yosef (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S164000, C382S167000, C382S275000, C358S518000, C358S520000

Reexamination Certificate

active

10605463

ABSTRACT:
A method for correcting faded colors in aged photographs or film. The method automatically restores the color of the image by analyzing the color variance in the image and determining tonal curve for each channel. First, the interior of the image is selected and the image is portioned into sub-images. The variance of each sub-image is calculated, and the parameters are evaluated for correcting the entire image during scanning. This method will provide good color quality and preserve good density of the image.

REFERENCES:
patent: 5267031 (1993-11-01), Katoh et al.
patent: 5874988 (1999-02-01), Gu
patent: 6636646 (2003-10-01), Gindele
patent: 6640000 (2003-10-01), Fey et al.
patent: 6850259 (2005-02-01), Rzepkowski et al.

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