New JPEG Coding Algorithm Including Fractal Image Coding for Color Images

摘要

This paper proposes an effective JPEG coding algorithm using fractal image coding for color images. In the JPEG images, quantization noise is sometimes visible in high frequency regions, such as the edges of objects. Hence, in order for the JPEG coding to become a more powerful image-coding method, the JPEG image quality must be improved. Therefore, in this paper, a quality improvement method for the color JPEG images is proposed by using the fractal image coding. Some simulation results verify that the proposed method can improve the image quality in the high frequency regions and provide the decoded image with 0.4 dB higher quality than the traditional JPEG.