| 摘要 |
A fast technique utilizes overcomplete DCT representations and performs de-blocking, de-noising and de-blurring by thresholding and transforming the transform coefficients to process images obtained from inexpensive sensors/cameras with low-quality compressed image output. A color balance algorithm is used to compensate for hue shifts. Quality differences between color channels and inter-channel correlations are exploited to significantly reduce computational requirements and yield a high-performance technique for processing such images before printing.
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