以Retinex結合色調對映曲線進行影像品質強化

Combination of Retinex and Tone Mapping for Image Enhancement

徐道義(Taoi Hsu) ； 柯佳伽(Chia-Chieh Ko)

《中華印刷科技年報》 2009 (2009/03) Pp. 3-14

https://doi.org/10.30153/JCAGST.200903.0002

摘要

本研究主要是針對色彩影像進行影像的視覺強化，而主要以Retinex演算法為主。但因為影像經過Retinex處理過後，會使影像過度的強化，因此我們利用四分位S曲線再對光源影像做調整，使影像不致於過度的被強化，以符合人眼能接受的影像品質且提升影像的視覺品質。

關鍵字

Retinex ； QSF ； 影像強化

並列摘要

An image enhancement in respect of the color features based on the Retinex with tone curve mapping is proposed. The tone curve is generated by a Quartile Sigmoid Function allowing the intensity adjustment be satisfied within the saturation level. Then the color component is then reconstructed to achieve the visual pleasant quality.

參考文獻

Bo Sun,Weifang Chen,Hongyu Li,Wenjing Tao,Jiang Li(2007).Modified Luminance Based Adaptive MSR.Fourth International Conference on Image and Graphics.(Fourth International Conference on Image and Graphics).

Brian Funt,Kobus Barnard,Michael Brockington,Vlad Cardei(1997).Luminance-Based Multi-Scale Retinex.AIC Colour 97 Kyoto 8th Congress of the International Colour Association.(AIC Colour 97 Kyoto 8th Congress of the International Colour Association).

Chao-hua Wen,Jyh-jiun Lee,Yi-chin Liao(2001).Adaptive Quartile Sigmoid Function Operator for Color Image Contrast Enhancement.IS&T/SID Ninth Color Imaging Conference.(IS&T/SID Ninth Color Imaging Conference).

E. Land(1986).An alternative technique for the computation of the designator in the retinex theory of color vision.Proceedings of the National Academy of Science.83,3078-3080.

Laurence Meylan,Sabine Susstrunk(2006).High Dynamic Range Image Rendering with a retinex based adaptive filter.IEEE Transactions on Image Processing.15(9),2820-2830.