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J. Patt. Recogn. Artif. Intell."],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:p> To improve contrast and restore color for underwater images without suffering from insufficient details and color cast, this paper proposes a fusion algorithm for different color spaces based on contrast limited adaptive histogram equalization (CLAHE). The original color image is first converted from RGB space to two different spaces: YIQ and HSI. Then, the algorithm separately applies CLAHE in YIQ and HSI color spaces to obtain two different enhanced images. After that, the YIQ and HSI enhanced images are respectively converted back to RGB space. When the three components of red, green, and blue are not coherent in the YIQ-RGB or HSI-RGB images, the three components will have to be harmonized with the CLAHE algorithm in RGB space. Finally, using a 4-direction Sobel edge detector in the bounded general logarithm ratio operation, a self-adaptive weight selection nonlinear image enhancement is carried out to fuse the YIQ-RGB and HSI-RGB images together to achieve the final image. The experimental results showed that the proposed algorithm provided more detail enhancement and higher values of color restoration than other image enhancement algorithms. The proposed algorithm can effectively reduce noise interference and observably improve the image quality for underwater images. <\/jats:p>","DOI":"10.1142\/s0218001418540186","type":"journal-article","created":{"date-parts":[[2017,12,18]],"date-time":"2017-12-18T01:33:58Z","timestamp":1513560838000},"page":"1854018","source":"Crossref","is-referenced-by-count":108,"title":["Contrast Limited Adaptive Histogram Equalization-Based Fusion in YIQ and HSI Color Spaces for Underwater Image Enhancement"],"prefix":"10.1142","volume":"32","author":[{"given":"Jinxiang","family":"Ma","sequence":"first","affiliation":[{"name":"College of Computer and Information, Hohai University, Nanjing 210098, P. R. China"},{"name":"School of Electric and Photo-Electronic Engineering, Changzhou Institute of Technology, Changzhou 213032, P. R. China"}]},{"given":"Xinnan","family":"Fan","sequence":"additional","affiliation":[{"name":"College of IOT Engineering, Hohai University, Changzhou 213022, P. R. 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