Image enhancement using background brightness preserving histogram equalisation
- 2 February 2012
- journal article
- research article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 48 (3) , 155-157
Abstract
Histogram equalisation (HE) is widely used to enhance the image contrast but it tends to over-enhance the image background brightness. Improvement schemes have been introduced to reduce this defect of the conventional HE, but the over-enhancement of the background brightness is still obvious. A novel approach of nonlinear HE is presented, which is able to enhance the image contrast while preserving the background brightness for images with well-defined background brightness.Keywords
This publication has 4 references indexed in Scilit:
- Digital Image Processing2006
- Minimum mean brightness error bi-histogram equalization in contrast enhancementIEEE Transactions on Consumer Electronics, 2003
- Image enhancement based on equal area dualistic sub-image histogram equalization methodIEEE Transactions on Consumer Electronics, 1999
- Contrast enhancement using brightness preserving bi-histogram equalizationIEEE Transactions on Consumer Electronics, 1997