Chinese Journal of Liquid Crystals and Displays, Volume. 39, Issue 4, 482(2024)
Real-time image enhancement based-on improved algorithm of gray-scale equispacing density equalization
Fig. 1. Principle diagram of gray-scale equispacing density equalization
Fig. 3. Images enhanced by gray-scale equispacing density equalization algorithm
Fig. 5. Histogram of image brightness enhanced by gray-scale equispacing density equalization algorithm
Fig. 6. Comparison 1 of image effects before and after excessive enhancement
Fig. 7. Comparison 2 of image effects before and after excessive enhancement
Fig. 8. Image enhancement by improved gray-scale equispacing density equalization algorithm
Fig. 9. Image histogram enhanced by improved gray-scale equispacing density equalization algorithm
Fig. 11. Comparison 3 of image effects before and after excessive enhancement
Fig. 13. Comparison of enhancement effects of different algorithms
Table 1. Single frame processing time of typical resolution images
View tableView in ArticleTable 1. Single frame processing time of typical resolution images
序号 分辨率 位深/bit 耗时/ms 1 320×256 14 <1 2 640×512 14 <2 3 960×540 24 <8 4 1 920×1 080 24 <32
Table 2. Objective evaluation indexes of different algorithms
View tableView in ArticleTable 2. Objective evaluation indexes of different algorithms
增强算法 LOE BRISQUE NIQE Time/s 对数变换 503.23 35.21 3.23 0.037 RetinexNet 443.21 25.34 3.67 0.040 Zero-DCE 367.97 21.11 3.11 0.042 灰度等间距密度均衡方法 310.54 17.34 2.98 0.032 本文改进算法 215.34 15.78 2.76 0.018
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Yanchao ZHANG, Ce GAO, Congcong SONG, Jiaxing XU, Jie WU. Real-time image enhancement based-on improved algorithm of gray-scale equispacing density equalization[J]. Chinese Journal of Liquid Crystals and Displays, 2024, 39(4): 482
Category: Research Articles
Received: Jun. 8, 2023
Accepted: --
Published Online: May. 28, 2024
The Author Email: Yanchao ZHANG (zhangyanchaomn@126.com)
