Multispectral histogram normalization contrast enhancement
Abstract
A multispectral histogram normalization or decorrelation enhancement which achieves effective color composites by removing interband correlation is described. The enhancement procedure employs either linear or nonlinear transformations to equalize principal component variances. An additional rotation to any set of orthogonal coordinates is thus possible, while full histogram utilization is maintained by avoiding the reintroduction of correlation. For the three-dimensional case, the enhancement procedure may be implemented with a lookup table. An application of the enhancement to Landsat multispectral scanning imagery is presented.
- Publication:
-
5th Canadian Symposium on Remote Sensing
- Pub Date:
- 1979
- Bibcode:
- 1979csrc.proc...86S
- Keywords:
-
- Histograms;
- Image Enhancement;
- Image Processing;
- Landsat Satellites;
- Multispectral Band Scanners;
- Transformations (Mathematics);
- Color Photography;
- Data Correlation;
- Image Contrast;
- Multispectral Photography;
- Instrumentation and Photography