Design and Implementation of Brightness Configurable Bi-Histogram Equalization Based on FPGA. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Wang, Zhaolin; Yue, Hongju; Wang, Jun; Tao, Huibin; Wang, Li
• Is Part Of: IOP conference series. Volume 693:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/693/1/012087
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In order to improve the contrast of images in different brightness environments, based on brightness preserving Bi-Histogram Equalization(BBHE), a Brightness configurable Bi-Histogram Equalization(BCBHE) system is proposed and implemented by FPGA in this paper. The system implements the BBHE algorithm, and adds the brightness configurable logic unit to realize the brightness configurable image contrast enhancement. The test results of the video processing platform of Genesys 2 development board show that: the design obtains BBHE images with different brightness configurations, and achieves the best contrast enhancement visual effect by setting image brightness threshold in different field environment. At the same time, based on the parallel operation characteristics of the FPGA, it meets the requirements of real-time image processing.