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An efficient algorithm for optimizing DCT quantization

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2 Author(s)
Viresh Ratnakar ; Epson Res. & Dev., Palo Alto, CA, USA ; Livny, M.

We describe the RD-OPT algorithm for DCT quantization optimization, which can be used as an efficient tool for near-optimal rate control in DCT-based compression techniques, such as JPEG and MPEG. RD-OPT measures DCT coefficient statistics for the given image data to construct rate/distortion-specific quantization tables with nearly optimal tradeoffs

Published in:

Image Processing, IEEE Transactions on  (Volume:9 ,  Issue: 2 )

Date of Publication:

Feb 2000

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