Images comprise a substantial portion of network traffic. Reducing the filesize of an image while preserving quality can reduce storage costs and bandwidth usage, as well as reduce latency. This disclosure describes techniques for adaptive transcoding of an image into an appropriate target file format such that file size is reduced while preserving image quality. An input image is processed to remove compression artifacts. An image quality metric is obtained and an image codec is selected. The image is encoded using the selected codec.
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Yang, Feng; Tian, Yicong; Li, Xia; Milanfar, Peyman; and Wang, Jingbin, "Adaptive Image Transcoding", Technical Disclosure Commons, (March 30, 2020)