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US 8,553,978 B2Granted
System and method for providing multi resolution purple fringing detection and correction
AssigneeCSR Technology Inc.
InventorsYochay Tzur, Dudi Vakrat
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AssigneeCSR Technology Inc.
InventorsYochay Tzur, Dudi Vakrat
Estimating the term…
A system, method, and computer program product for automatically detecting and correcting the “purple fringing” effect, typically due to axial chromatic aberration in imaging devices, are disclosed and claimed. A chromaticity score is computed, denoting the amount of false color related to a purple fringing artifact. A locality score is computed, denoting the similarity of the purple fringing region to a shape of a narrow ridge, which is typical for purple fringing artifacts. A saturation score is also computed, denoting the proximity of a pixel to saturated pixels. These scores are then combined into a detection score, denoting pixels having strong indications they share properties common to pixels of purple fringing artifacts. The detected pixels are then correspondingly corrected, e.g. by chroma suppression. The scoring and correction may be performed over combinations of image resolutions, e.g. an original version and potentially numerous downscaled versions.
An automated image correction method, comprising:
An automated image correction system, comprising a processor and a non-transitory computer-readable medium that:
A non-transitory computer program product for automated image correction, comprising a non-transitory computer-readable medium tangibly embodying non-transitory program instructions thereon that, when executed cause a computer to:
A system, comprising code segments stored on a non-transitory computer-readable medium for:
Dependencies are inferred from the claim text.