METHOD, APPARATUS AND SYSTEM FOR IMAGE DATA CORRECTION

摘要

Image data is corrected in a device or system using multiple halftones by predicting a second tone transfer curve corresponding to a second halftone based on a first tone transfer curve corresponding to a first halftone. First and second tone transfer curve compensates for application of the first halftone and the second halftone, respectively, to image data. The first tone transfer curve is determined by measuring image data halftone with the first halftone and developing a first tone transfer curve that linearizes the measured image data. To produce the second tone transfer response curve, measured values of image data halftone with the second halftone are estimated based on a predetermined relationship between the measured image data that is halftone with the first halftone and image data that is halftone with the second halftone. The second tone transfer curve is then developed as the curve that linearizes the estimated measured values of image data halftone with the second halftone.