Methods and systems for coding multiple dynamic range images
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United States of America Patent
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Jul 20, 2010
Grant Date -
Aug 14, 2008
app pub date -
Feb 8, 2007
filing date -
Feb 8, 2007
priority date (Note) -
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Abstract
Aspects of the present invention relate to systems and methods for encoding and decoding digital images. Some aspects relate to a method for encoding and decoding image data wherein a prediction base image based on a low dynamic range (LDR) image and a high dynamic range (HDR) image corresponding to the LDR image are analyzed and a difference image is determined in the spatial domain, wherein the difference image represents the difference between the prediction base image and the HDR image. In some cases, the difference image values are quantized and sorted into an order based on the values of corresponding pixels in the LDR image.
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