Method for determining and loading an image-dependent look-up ta

Details Method for determining and loading an image-dependent look-up ta Method for determining and loading an image-dependent look-up ta

1995-12-08

1998-09-01

Couso, Yon J.

Image analysis

Image enhancement or restoration

382319, G06K 940

Patent

active

058022147

ABSTRACT:
A scanner generates a first set of M-bit signals representing an image in a document. A default table translates the M-bit signals into linearized N-bit signals where M>N. A color image processing module processes the N-bit signals to generate an image-dependent look-up table which, thereafter, is loaded into the scanner. The scanner then generates a second set of M-bit signals using a high resolution re-scan of the same image. The second set of M-bit signals are translated into N-bit signals using the image-dependent look-up table to generate an electronic representation with enhancement characteristics.

REFERENCES:
patent: 4888492 (1989-12-01), Arimoto
patent: 4947444 (1990-08-01), Nagaoka
patent: 4955067 (1990-09-01), Shimura
patent: 5123060 (1992-06-01), Cho et al.
patent: 5513018 (1996-04-01), Nishimura

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