Image rendering system and associated method for minimizing cont

Details Image rendering system and associated method for minimizing cont Image rendering system and associated method for minimizing cont

1994-05-16

1997-01-28

Mancuso, Joseph

Image analysis

Pattern recognition

Feature extraction

382162, 382270, G06K 948

Patent

active

055984827

ABSTRACT:
The apparatus and method of the present invention quickly determines the presence of contours in a digital color image by determining the busy and the non-busy (smooth) regions of the original digital color image and determining the luminance variations in the smooth regions of the original digital color image and in a quantized version of the original digital color image. The difference between the luminance variations is compared against a selected threshold value, which if exceeded causes a mark to be associated with the pixel under consideration. For each pixel of the quantized digital color image that is associated with the mark or has a mark associated with a neighboring pixel in a window around the pixel of interest the color of the pixel is selected to minimize and or remove the contour.

REFERENCES:
patent: 4366507 (1982-12-01), Mori
patent: 4415920 (1983-11-01), Kato et al.
patent: 5025478 (1991-01-01), Morris et al.
patent: 5083210 (1992-01-01), Reilly et al.
patent: 5157741 (1992-10-01), Katayama

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