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Improved Resolution Synthesis for Image Interpolation

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The Resolution Synthesis algorithm (ResSynth or RS) is an image interpolation algorithm which computes the minimum mean-squared error estimate of the high-resolution image, given the low-resolution image. ResSynth produces sharper images than the commonly used Bilinear and Bicubic interpolation; and it is computationally efficient. However, the original ResSynth algorithm has some deficiencies, which are: 1) it tends to aggravate noise and JPEG artifacts in the image; 2) it produces halos around strong edges in the image; 3) it occasionally generates “color sprinkles” - pixel errors around the edges. To overcome these problems, we developed the New ResSynth algorithm based on the original algorithm. New ResSynth significantly improves the quality of the interpolated images.
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Document Type: Research Article

Publication date: 2006-01-01

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