Arm Limited

Netflix Inc.

Apical Limited

Lukas Krasula

Joel Sole Rojals

Damian Piotr Modrzyk

Brian Paul Starkey

Güney Kayim

Pulkit Tandon

Mariana Fernandez Afonso

A banding detection application generates a first set of pixel confidence values based on a first intensity difference value and first image scale associated with a first image, wherein each pixel confidence value included in the first set of pixel confidence values indicates a likelihood that a corresponding pixel included in the first image at the first image scale corresponds to banding in the first image. The banding detection application then generates a banding index corresponding to the first image based on the first set of pixel confidence values.

Banding artifact detection in images and videos

A method of performing tone mapping in a stream of images (Fr) includes, for each image (Fr) in the stream: sparsely reading image data values (ID) corresponding to the image (Fr) to provide sparse image data from a plurality of sparsely distributed positions (Pos) in the image (Fr); generating, based on the sparse image data, tone mapping parameters of a tone mapping algorithm (TMA) for each position in the image (Fr); each position in the image (Fr) including the sparsely distributed positions (Pos) and a plurality of further positions (PosF) in the image (Fr); reading the image data values (ID) corresponding to the image (Fr) to provide image data from each position in the image (Fr); and tone mapping the image by mapping the image data from each position in the image (Fr) to adjusted image data using the generated tone mapping parameters.

Tone mapping method

Growing community of inventors

Campbell, CA, United States of America

Lukas Krasula