Color Processing for Digital Cameras
Michael S. Brown · 2023
This book chapter provides an overview of the processing steps applied onboard a camera to convert raw sensor images into visually pleasing digital photos encoded in a standard color space suitable for sharing. The chapter delves into the typical processing steps implemented in a camera's image signal processor (ISP), collectively known as the camera pipeline. These processing steps include defective pixel correction, demosaicing, lens shading correction, denoising, white-balancing, color space transformations, and various image rendering or photo-finishing routines. The chapter also explores the concept of multi-frame processing andtrends in deep-learning-based ISP algorithms.This book chapter provides an overview of the processing steps onboard a camera to convert raw sensor images into visually pleasing digital photos encoded in a standard color space suitable for sharing. The chapter delves into the typical processing steps implemented in a cameras image signal processor (ISP), collectively known as the camera pipeline. These processing steps include defective pixel correction, demosaicing, lens shading correction, denoising, white-balancing, color space transformations, and various image rendering or photo-finishing routines. The chapter also explores the concept of multi-frame processing and describes recent trends in deep-learning-based ISP algorithms.