Based On Section Local Histogram Equalization Image Enhancement Algorithm

Abstract

The implementation of aircraft docking auto-guide to improve airport the level of information and automation is essential, a method based on visual docking auto-guide because the information-rich, intuitive effects and low cost has been subject to the attention of scholars at home and abroad. During entry into the Stand, the aircraft geometry is being checked. The conducting depth studies of image preprocessing algorithms of image enhancement in special weather conditions. In order to better adjust the contrast of image, improved histogram equalization algorithm – section local histogram equalization algorithm is proposed, section transformation, the transformation function is different, become a fold line in the transform coordinate system, fold line discontinuities position according to the need to decide, the section is enhanced by improving the local histogram. Experimental results show that the proposed algorithm is simple, fast operation, to meet the real-time requirements of the system.