Laser & Optoelectronics Progress, Volume. 58, Issue 14, 1410020(2021)
Crossing Decomposition Based Tone Mapping Algorithm for High Dynamic Range Image
In order to improve the display effect of high dynamic range images, a high dynamic range image tone mapping algorithm based on cross decomposition is proposed. Based on the analysis of image edge filtering, an image decomposition and reconstruction algorithm based on cross decomposition is given, and the reconstruction coefficients are analyzed, and then applied to tone mapping. First, the chromaticity and brightness information are separated in the chromaticity brightness space. Then, the brightness information is filtered by Gaussian filter and bilateral filter respectively to construct a crossover decomposition scheme, a base layer containing large-scale structure information, a detail layer containing texture information, and the edge layer where the brightness varies dramatically are obtained. Finally, by discussing the reconstruction coefficients in detail, the coefficient selection rules in tone mapping are determined, and the brightness range is compressed and reconstructed. The experimental results show that the proposed algorithm can effectively compress the dynamic range of the image while maintaining the color information, enhancing the edge and texture details and other features.
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Zebang Pang, Bibo Lu, Yanan Gu, Yanmei Zheng, Ming Zhang. Crossing Decomposition Based Tone Mapping Algorithm for High Dynamic Range Image[J]. Laser & Optoelectronics Progress, 2021, 58(14): 1410020
Category: Image Processing
Received: Oct. 29, 2020
Accepted: Dec. 3, 2020
Published Online: Jul. 6, 2021
The Author Email: Gu Yanan (gyn_519@163.com)