Image processing method, and output image

#1. Field of the Invention

#The present invention relates to an image processing method of converting page description data, which is described by page description language, into output image data, and an output image outputted via a data conversion according to the image processing method as mentioned above.

#2. Description of the Related Art

#FIG. 1 is a schematic constitution view of a printing proof system.

#FIG. 2 is a perspective view of a personal computer and a printer shown in FIG. 1.

#FIG. 3 is a hardware structural view of the personal computer shown in FIG. 1.

#Embodiments of the present invention will be described with reference to the accompanying drawings.

#FIG. 1 is a schematic constitution view of a printing proof system into which an image processing apparatus for implementing an image processing method according to an embodiment of the present invention is incorporated.

#A color scanner 10 reads an original image and creates image data for four colors consisting of cyan (C) magenta (M), yellow (Y) and black (K), which represent the original image thus read. The image data of CMYK produced by the scanner 10 is fed to a workstation 20. The workstation 20 performs an electronic page make-up in accordance with the entered image data. In the electronic page make-up, there is created image data representative of an image for printing. This image data for printing represents an image consisting of pixels having gradations on the four colors of CMYK and the spot color. When the printing is performed, the image data for printing is converted into image data for plate making representative of a halftone dot image and then fed to a film printer 30. The film printer 30 creates printing film original plates for the four colors of CMYK and the spot color in accordance with the image data for plate making.