Image enhancement by local histogram stretching
Abstract
An image enhancement algorithm that makes use of local histogram stretching is introduced. This algorithm yields considerable improvements in human observation of details in an image, compared to straightforward histogram equalization and a number of other enhancement techniques. The algorithm is especially suitable for producing hard copies of images on electrostatic plotters with limited gray levels, as shown in applications to the Girl's image and a Landsat image.
- Publication:
-
IEEE Transactions on Systems Man and Cybernetics
- Pub Date:
- May 1981
- Bibcode:
- 1981ITSMC..11..376A
- Keywords:
-
- Computer Graphics;
- Histograms;
- Image Enhancement;
- Image Processing;
- X-Y Plotters;
- Algorithms;
- Landsat Satellites;
- Reproduction (Copying);
- Satellite-Borne Photography;
- Instrumentation and Photography