Image processing apparatus and methods for making a creative ima

Details Image processing apparatus and methods for making a creative ima Image processing apparatus and methods for making a creative ima

1988-10-11

1990-09-11

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 78, G09G 128

Patent

active

049567047

ABSTRACT:
An image processing apparatus and method in which an object is imaged to produce signals and the signals are divided into groups according to areas of the image having edges of high spatial frequency, i.e., large change in same-color characteristics. The signals in selected areas are changed to produce a reproduced image with desired color effects. For example, an edge may be detected in the original image, and the division of the image into areas effected by a closed curve using the edge. The subsequent processing may include changing a color characteristic of at least one of the areas. The color characteristic might, for example, be an average of various values of that characteristic throughout the area in question. The identification of a high-spatial-frequency area can be performed in various ways, e.g., by summing edge components of the original image which extend in a plurality of directions.

REFERENCES:
patent: 4794382 (1988-12-01), Lai et al.

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