US 8,786,899 B2 · Conversion arrays for print image data transformation

Abstract

Systems and methods for using conversion arrays to transform image in print jobs to different color depths. In one embodiment, the system stores a plurality of conversion arrays for converting images of print jobs encoded according to a page description language. The system receives a print job encoded according to the page description language, locates an image in the encoded print job, and identifies an existing color depth of the image, a pel color range, and a desired output color depth for the image. The system further selects a conversion array from the memory based on at least one of the existing color depth of the image, the pel color range, and the desired output color depth, and converts the image from the existing color depth of the image to the desired output color depth using the conversion array. The system further transmits the converted image for printing.

Claims20

Dependent claims

A print controller comprising:

a memory operable to store a plurality of conversion arrays for converting images of print jobs encoded according to a page description language;
and
a control unit operable to receive a print job encoded according to the page description language, to locate an image in the encoded print job, to identify an existing color depth of the image, a pel color range, and a desired output color depth for the image, to select a conversion array from the memory based on at least one of the existing color depth of the image, the pel color range, and the desired output color depth, to convert the image from the existing color depth to the desired output color depth using the selected conversion array, and to transmit the converted image for printing.

Dependencies are inferred from the claim text.

Conversion arrays for print image data transformation

Life of this patent

Conversion arrays for print image data transformation

Life of this patent

Abstract

Claims20