Artifact detection in a contrast enhanced output image

A computing device comprising:

• a memory configured to store an input image;
• and
• at least one processor configured to:
• perform one or more lookup table (LUT)-based image processing operations on the input image to produce an output image, wherein performing the one or more LUT-based image processing operations on the input image introduces one or more banding artifacts in the output image;
• determine one or more sub-regions of the output image that include the one or more banding artifacts;
• perform one or more artifact reduction operations on the one or more sub-regions of the output image without performing the one or more artifact reduction operations on remaining sub-regions of the output image;
• perform the one or more LUT-based image processing operations on a successive input image to produce a successive output image, wherein performing the one or more LUT-based image processing operations on the successive input image introduces a second one or more banding artifacts in the successive output image;
• and
• determine a second one or more sub-regions of the successive output image that include the second one or more banding artifacts based at least in part on the one or more sub-regions of the output image.

An apparatus comprising:

• means for performing one or more lookup table (LUT)-based image processing operations on an input image to produce an output image, wherein performing the one or more LUT-based image processing operations on the input image introduces one or more banding artifacts in the output image;
• means for determining one or more sub-regions of the output image that include the one or more banding artifacts;
• means for performing one or more artifact reduction operations on the one or more sub-regions of the output image without performing the one or more artifact reduction operations on remaining sub-regions of the output image;
• means for performing the one or more LUT-based image processing operations on a successive input image to produce a successive output image, wherein the means for performing the one or more LUT-based image processing operations on the successive input image introduces a second one or more banding artifacts in the successive output image;
• and
• means for determining a second one or more sub-regions of the successive output image that include the second one or more banding artifacts based at least in part on the one or more sub-regions of the output image.

A computer-readable storage medium storing instructions that, when executed, cause at least one processor to:

• perform one or more lookup table (LUT)-based image processing operations on an input image to produce an output image, wherein performing the one or more LUT-based image processing operations on the input image introduces one or more banding artifacts in the output image;
• determine one or more sub-regions of the output image that include the one or more banding artifacts;
• perform one or more artifact reduction operations on the one or more sub-regions of the output image without performing the one or more artifact reduction operations on remaining sub-regions of the output image;
• perform the one or more LUT-based image processing operations on a successive input image to produce a successive output image, wherein performing the one or more LUT-based image processing operations on the successive input image introduces a second one or more banding artifacts in the successive output image;
• and
• determine a second one or more sub-regions of the successive output image that include the second one or more banding artifacts based at least in part on the one or more sub-regions of the output image.