Patent ID: 7068391

Claim:
A method to proof an input image for output imaging by an output imaging process with N colorants at a printing resolution RES 1 , the proofing on a proofer having M proofer color components at a proofing resolution RES 2 , at least one of the M proofer color components being different from any of the N printing colorants, the output imaging including screening, the method comprising: providing a screened image of N color components at a resolution RES 3 that represents the input image, the N color components of the RES 3 screened image substantially the same as the N printing colorants of the output imaging process, and the screening of the RES 3 screened image having substantially the same properties as the screening of the output imaging process; converting the N-color-component screened image at the resolution RES 3 to a contone image of resolution RES 3 having a number denoted M of contone color components; and converting the M-color-component contone image at the resolution RES 3 to an M-color-component contone image at the proofing resolution RES 2 .