Image transforming method and apparatus

Details Image transforming method and apparatus Image transforming method and apparatus

1998-07-01

2000-07-25

Tran, Phuoc

Image analysis

Color image processing

Color correction

358523, G06K 900

Patent

active

060945036

ABSTRACT:
A color space is divided into a plurality of blocks, and transformed values of coordinates of vertexes of each block are calculated previously and recorded in a transformed value table. In a factor table, vertexes, which have weight factors other than 0, and the weight factors of these vertexes are recorded with respect to each of positions in a block. A transformed value of a picture element value of each of picture elements, which constitute a color image, is calculated with a simple interpolating operation by utilizing only the vertexes, which have weight factors other than 0, and in accordance with the transformed values, which have been recorded in the transformed value table, and the vertexes and their weight factors, which have been recorded in the factor table. A direct mapping technique is thus improved, and image transforming processing is carried out quickly.

REFERENCES:
patent: 5323249 (1994-06-01), Liang
patent: 5627950 (1997-05-01), Stokes

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