Image reproduction.

摘要

A method of generating a recording beam control function for use in a method of reproducing an original coloured image in which a record medium is exposed to a recording beam of radiation under the control of the control function is described. The method comprises
1) generating a proof (7) from the original image;2) generating a first recording beam control function (4) at least partly from the original image using a second reproductive process (2,3) different from the first reproductive process;3) comparing the colour of one or more selected areas of the proof (7A,7B) with the colour of the corresponding area or areas defined by the first control function; and,4) modifying the first control function (4) in response to the result of the comparison step to generate a second control function (6) adapted to minimise differences in colour between the proof and the reproduced image.