Pictorial digital image processing incorporating image and output device modifications

摘要: Image-dependent tone and color reproduction processing of digital images is accomplished by creating a spatially blurred sub-sampled version the original image, applying knowledge capture device physical characteristics to obtain statistics related scene or captured. The are used for image-dependent linearization captured image data based on an OECF model, in conjunction with information about output medium, calculate image-specific preferred curves model. These may be applied red, green, blue channels RGB-type produce reproduction, luminance channel luminance-chrominance type reproduction. Alternately, linearized reproduced directly. Also, if assumed already possess model undo original. can then processed media different density ranges gamuts. All described automatically, but access accurate afforded linearization, perceptually intuitive parameters controlling calculation curves, also allows simple, manual adjustment.