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JPEG is a lossy compression standard for digital images. The JPEG
encoding process lets users trade off reduced compressed filesize for
degraded image quality.
We have developed a JPEG Quality Transcoder (JQT) that converts a
JPEG image file that was encoded with low image quality to a larger
JPEG image file with reduced visual artifacts, without access to the
original uncompressed image.
In this website, we show how JQTs can be used in networked systems
to:
- Reduce bandwidth while maintaining perceptual quality.
- Enhance perceptual quality at a constant bandwidth.
while maintaining compatibility with the JPEG standard.
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