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Practical color filter array interpolation with constrained color correlation

By: Kuno, T.; Sugiura, H.;

2006 / IEEE


This item was taken from the IEEE Periodical ' Practical color filter array interpolation with constrained color correlation ' This paper presents a practical color filter array interpolation method using color correlation for digital cameras. Cost-effective digital cameras use a single chip image sensor and subsequent interpolation processing to produce full-color images. Although many types of sophisticated algorithm have been proposed to create high quality images, it becomes difficult to implement them in digital cameras due to their limited computing capacity, available processing time, and hardware size. The cost-effective interpolation methods using a directional or adaptive color correlation result in color artifacts on the edges of color boundaries. The proposed method eliminates these artifact regardless of the positive, negative or non-color correlation of images by adding a constraining condition to conventional color correlative interpolation. Experimental results confirm the effectiveness of this approach