Predicting ringing artifacts in digital images
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United States of America Patent
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-
Jan 18, 2005
Grant Date -
Sep 19, 2002
app pub date -
Mar 16, 2001
filing date -
Mar 16, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Ringing artifacts in digital images are predicted by determining a number of pixels of a block of pixels exhibiting luminance exceeding a luminance threshold adequate for detecting a ringing artifact and a number of these higher luminance pixels having sufficient contrast with neighbor pixels to be a likely source of a ringing artifact.
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