US 5,113,356 A · Colorizing black and white documents

Abstract

A software package is described which resides in a color printing system and which automatically intercepts and colorizes black and white documents (or re-colors color documents, if desired) that are sent to the color printer. The description includes pictorial flow charts and segments of code from an existing implementation in a Pascal-like language, implemented for documents expressed in a high-level page description language (PDL). The functionality of each major process in the software is explained in detail, including as examples the process of capturing and parsing user-specified modifications to the automatic coloring instructions, the process of coloring graphical objects according to their existing fill patterns, the process of coloring text and adding textual features such as dropshadows, and the process of coloring bitmaps.

Claims8

Dependent claims

The method of generating a color print comprising the steps of:

at a user's terminal, generating page description language commands describing a page of patterns, graphics, and text,
allowing a user to add to said language, instructions which command the colors that certain specified patterns, graphics, and text are to be printed in,
transmitting said language and instructions to a color printer,
at the printer, changing said original page description language commands into new page description language commands which describe a page with a different set of patterns, graphics, test, and colors,
deleting said instructions from the page description language commands, and
printing the final print by printing each item of patterns, graphics, and text as specified by the new page description language commands.

3 more elements

Dependencies are inferred from the claim text.

Colorizing black and white documents

Life of this patent

Colorizing black and white documents

Life of this patent

Abstract

Claims8