Digital pixel-accurate intensity processing method for image inf

Details Digital pixel-accurate intensity processing method for image inf Digital pixel-accurate intensity processing method for image inf

1995-03-08

1998-02-03

Razavi, Michael T.

Image analysis

Image enhancement or restoration

382130, G06T 550

Patent

active

057153345

ABSTRACT:
An "image information enhancement" technique for processing digital images is presented, wherein enhancement of image detail contrast is accomplished by adding a differential hysteresis pattern to a digital image. The differential hysteresis image processing utilizes the persistence of intensity variations (i.e., hysteresis) as means for data reduction and image detail contrast enhancement. Image hysteresis is determined by a hysteresis cursor of an interactively chosen hysteresis range and differential hysteresis patterns are generated as a difference between hysteresis images.

REFERENCES:
patent: 4903205 (1990-02-01), Hishinuma
patent: 4907156 (1990-03-01), Doi et al.
R.W. Ehrich, "A Symmetric Hysteresis Smoothing Algorithm that Preserves Principal Features" in Computer Graphics and Image Processing, pp. 121-126 (1978).

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