Quality-aware selection of quality factor and scaling parameters in JPEG image transcoding

  title={Quality-aware selection of quality factor and scaling parameters in JPEG image transcoding},
  author={St{\'e}phane Coulombe and Steven Pigeon},
  journal={2009 IEEE Symposium on Computational Intelligence for Multimedia Signal and Vision Processing},
Reducing the file size of a JPEG image to meet bandwidth or terminal constraints is a common transcoding operation. The reduction can be achieved by reducing either the quality factor (QF) or the resolution, or both. In this paper, we analyze the impact of QF and scaling parameter choices on the quality of the resulting images, as measured by a quality metric such as the Structural SIMilarity index (SSIM). We propose a quality-aware transcoding system which considers the quality of transcoded… CONTINUE READING
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