foo2zjs-icc2ps
Convert ICC profile to PostScript color space
SYNOPSIS
icc2ps [options] <profile.icc >profile.ps
PARAMETERS
-d bits
Converts ICC profile data to the specified number of bits per channel. The default value is 8 bits.
-g gamma
Applies a gamma correction to the generated Postscript color rendering dictionary. The default value is 1.0 (no correction).
-h
Displays a help message with command usage and available options.
-i intent
Specifies the rendering intent for the ICC profile conversion:
0 = Perceptual
1 = Relative Colorimetric
2 = Saturation
3 = Absolute Colorimetric
The default intent is Perceptual (0).
-t
Prints tag information found within the ICC profile.
-v
Prints the version information of the icc2ps utility.
DESCRIPTION
icc2ps is a utility within the foo2zjs printer driver suite. Its primary function is to read an ICC (International Color Consortium) color profile, typically from standard input, and convert it into a Postscript Color Rendering Dictionary (CRD). This generated dictionary is then written to standard output. The resulting Postscript CRD is crucial for color management, particularly when used by other foo2zjs utilities like foo2zjs-pstops. It enables the conversion of Postscript color information into the specific color space and characteristics understood by the printer, ensuring accurate color reproduction based on the provided ICC profile. This tool is vital for users who require precise color matching and calibration with their ZjStream-based printers, integrating color management into the Linux printing workflow.
CAVEATS
Requires a valid ICC profile as input via standard input. The output Postscript CRD is specifically designed for integration with foo2zjs-pstops and may not be universally compatible with all Postscript interpreters or workflows. Accurate color reproduction depends on the quality of the input ICC profile and proper calibration of the printer.
INPUT AND OUTPUT
The command typically expects an ICC profile to be supplied via standard input (e.g., using a pipe or input redirection like <profile.icc). It writes the resulting Postscript Color Rendering Dictionary to standard output (e.g., using output redirection like >profile.ps). This design allows for flexible pipelining with other commands in a script or command-line environment.
ROLE IN COLOR MANAGEMENT
This utility is a key piece in the color management pipeline for foo2zjs printers. It bridges the gap between device-independent color spaces defined by ICC profiles and the device-dependent color output required by the printer through Postscript, allowing for consistent and accurate color reproduction across different devices and applications within the foo2zjs printing ecosystem.
HISTORY
The foo2zjs-icc2ps utility is part of the foo2zjs project, an open-source printer driver that provides support for printers using the ZjStream wire protocol. It was developed by Ralph M. Giannella as a component to enable robust color management for these printers by allowing ICC profiles to be integrated directly into the Postscript printing workflow, addressing a common need for accurate color reproduction in Linux environments.
SEE ALSO
foo2zjs(1), foo2zjs-pstops(1), foo2zjs-richtext(1)