영상처리

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본문내용

Psychovisual redundancy
- Human visual processing
1) search for distinguishing features and combine them
into recognizable group.
2) correlate groupings with prior knowledge.
- Eliminate info. which is not essential for normal visual processing.
(Ex) Reduce quantization levels from 256 to 16 levels.
Results in false contouring.
Overcome false contouring by IGS(improved gray scale)
quantization.

참고 자료

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