Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
734743 | Optics & Laser Technology | 2006 | 6 Pages |
Abstract
We demonstrate a modified contrast-stretching method to enhance a non-uniformly illuminated image. Low-frequency information of the image is processed by the conventional manipulation, while the high-frequency information is exaggerated by the log transformation. Characteristics in the picture are better enhanced compared to the traditional algorithm.
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Ching-Chung Yang,