Color Image Quality Enhancement Using Retinex Algorithm

• Main Authors: Chia-Chieh Ko, 柯佳伽
• Other Authors: Tao-I Hsu
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/565fvu

碩士 === 世新大學 === 資訊管理學研究所(含碩專班) === 96 === This study aims the visual image contrast enhancement of the color images. Amongst of them, Retinex is the most significant enhancement for human visual system, taking into account in both color component of the rendering and the image contrast enhanced that makes the choices. Because of the Retinex absence use images histogram information distribution, image histogram distribution in deriving Quartile Sigmoid Function (QSF) is proposed. By combining the QSF mapping and Retinex theory, the resulting has shown well in both the rending and contrast enhancement. Sets of images to be used for proposed images enhancement model. As for bands of information of Histogram equalization is employed, integration of both MSR and the Retinex with Quartile Sigmoid Function (QSF) demonstrates the effectiveness of the algorithm in terms of the image quality