Multi-level lookup tables for control point processing and histogram collection

• Main Authors: Douady, Bruno César, Guérin, Guillaume Matthieu
• Format: Patent
• Language: English
• Published: 15.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

Multiple lookup tables (LUTs) storing different numbers of control point values are used to process pixels within different blocks of an image, such as after image processing using tone mapping and/or tone control, and/or to collect histogram information or implement 3D LUTs. First control point val...