초록 ▼

This is a method for adjusting output device profiles for four-color devices such as offset presses. The user of this invention starts by selecting a base profile. This base profile produces satisfactory color but does not have the desired amount of Gray Component Replacement (GCR). The user of this

This is a method for adjusting output device profiles for four-color devices such as offset presses. The user of this invention starts by selecting a base profile. This base profile produces satisfactory color but does not have the desired amount of Gray Component Replacement (GCR). The user of this invention makes use of this invention to adjust the GCR of the output profile until it is at some desired level. The invention then produces a new output profile which produces the same color as the base profile but which has the desired degree of GCR.

대표청구항 ▼

[ We claim:] [1.] A computer program product for changing a black inking specified by an output transform which is part of a pre-stored set of base transforms characterizing an output device, in which one of the set of transforms is an input transform, without changing the colorimetric accuracy of t

[ We claim:] [1.] A computer program product for changing a black inking specified by an output transform which is part of a pre-stored set of base transforms characterizing an output device, in which one of the set of transforms is an input transform, without changing the colorimetric accuracy of the transforms in the set, comprising: a computer readable storage medium having a computer program stored thereon for performing the steps of:(a) deriving a forward model from the input transform rather than from a target written by the output device;(b) accepting parameters specifying a desired level of black ink; and(c) constructing a new output transform which inverts the forward model so that the new output transform is consistent with the specified black inking parameters.