VueScan is the easiest way to get your scanner working on macOS Big Sur, Windows 10 and more. VueScan includes a driver for your scanner even though it isn't support anymore. Scanner Profiling with IT8 Targets Scanner profiling is the process of determining the precise color characteristics of a scanner or digital camera. VueScan uses IT8 targets (also called Q60 targets) to do this. IT8 targets are included with many scanners.
VueScan can make an IT8 target on your printer which you pop into your scanner and scan to profile the printer. In this case, VueScan knows the values of the target, so you don't need a reference. Higher end scanning software typically has an IT8 calibration routine built in (e.g. Both Vuescan and Silverfast so). If not, you can contact us to build the profile for you here - we just need your full size scan of the IT8 target plus the reference data you received with your target. An IT8 colour transparency target. In addition, you also get the ability to create raw scan files, perform IT8 calibration, and manage ICC profiles. If you are serious about archiving, then you should look into buying the professional edition. If you are unsure about purchasing VueScan, you can download a trial version, and try it out before you buy.
IT8 is a set of American National Standards Institute (ANSI) standards for color communications and control specifications. Formerly governed by the IT8 Committee, IT8 activities were merged with those of the Committee for Graphics Arts Technologies Standards (CGATS) in 1994.
Standards list[edit]
The following is a list of the IT8 standards, according to the NPES Standards Blue Book:
IT8.6 - 2002 - Graphic technology - Prepress digital data exchange - Diecutting data (DDES3)[edit]
This standard establishes a data exchange format toenable transfer of numerical control information between diecutting systems and electronic prepress systems.The information will typically consist of numerical control information used in the manufacture of dies. 37 pp.
IT8.7/1 - 1993 (R2003) - Graphic technology - Color transmission target for input scanner calibration[edit]
This standard defines an input test target that will allow anycolor input scanner to be calibrated with any film dye set used to create the target. It is intended to address the color transparency products thatare generally used for input to the preparatory process for printing and publishing. This standard defines the layout and colorimetric values ofa target that can be manufactured on any positive color transparency film and that is intended for use in the calibration of a photographicfilm/scanner combination. 32 pp.
IT8.7/2 - 1993 (R2003) Graphic technology - Color reflection target for input scanner calibration[edit]
This standard defines an input test target that will allow anycolor input scanner to be calibrated with any film dye set used to create the target. It is intended to address the color photographic paperproducts that are generally used for input to the preparatory process for printing and publishing. It defines the layout and colorimetric values ofthe target that can be manufactured on any color photographic paper and is intended for use in the calibration of a photographic paper/scannercombination. 29 pp.
IT8.7/3 - 1993 (R2003) Graphic technology - Input data for characterization of 4-color process printing[edit]
The purpose of this standard is to specify an input datafile, a measurement procedure and an output data format to characterize any four-color printing process. The output data (characterization) fileshould be transferred with any four-color (cyan, magenta, yellow and black) halftone image files to enable a color transformation to beundertaken when required. 29 pp.
Targets[edit]
Calibrating all devices involved in the process chain (original, scanner/digital camera, monitor/printer) is required for an authentic color reproduction, because their actual color spaces differ device-specifically from the reference color spaces.
An IT8 calibration is done with what are called IT8 targets, which are defined by the IT8 standards.
- Example
Vuescan It8
Special targets, implementing the IT8.7/1 (transparent target) or IT8.7/2 (reflective target) standards, are needed for calibrating scanners. These targets consists of 24 grey fields and 264 color fields in 22 columns:
- Column 01 to 12: HCL color model, which differ in Hue, Chroma, and Lightness
- Column 13 to 16: CMYK-ColorsCyan, Magenta, Yellow, and Key (black) in different steps of brightness
- Column 17 to 19: RGB-ColorsRed, Green, and Blue in different steps of brightness
- Column 20 to 22: undefined, producers' choice
After scanning such a target, an ICC profile gets calculated on the basis of reference values. This profile is used for all subsequent scans and assures color fidelity.
See also[edit]
Vuescan It8 Kalibrierung
References[edit]
- Romano, Richard and Frank. (1998). The GATF encyclopedia of graphic communications. GATF Press.
- Digital Color Imaging Handbook; Gaurav Sharma; ISBN978-0-8493-0900-7; 2002.
External links[edit]
- IT8 target sources
- IT8-enabled software
- ExactScan Pro, Windows, Mac, Linux
- SilverFast, Windows, Mac
- VueScan, Windows, Mac, Linux
- CoCa, Color camera calibrator, Windows, Linux
- Rough Profiler, Mac
IT8.6 - 2002 - Graphic technology - Prepress digital data exchange - Diecutting data (DDES3)[edit]
This standard establishes a data exchange format toenable transfer of numerical control information between diecutting systems and electronic prepress systems.The information will typically consist of numerical control information used in the manufacture of dies. 37 pp.
IT8.7/1 - 1993 (R2003) - Graphic technology - Color transmission target for input scanner calibration[edit]
This standard defines an input test target that will allow anycolor input scanner to be calibrated with any film dye set used to create the target. It is intended to address the color transparency products thatare generally used for input to the preparatory process for printing and publishing. This standard defines the layout and colorimetric values ofa target that can be manufactured on any positive color transparency film and that is intended for use in the calibration of a photographicfilm/scanner combination. 32 pp.
IT8.7/2 - 1993 (R2003) Graphic technology - Color reflection target for input scanner calibration[edit]
This standard defines an input test target that will allow anycolor input scanner to be calibrated with any film dye set used to create the target. It is intended to address the color photographic paperproducts that are generally used for input to the preparatory process for printing and publishing. It defines the layout and colorimetric values ofthe target that can be manufactured on any color photographic paper and is intended for use in the calibration of a photographic paper/scannercombination. 29 pp.
IT8.7/3 - 1993 (R2003) Graphic technology - Input data for characterization of 4-color process printing[edit]
The purpose of this standard is to specify an input datafile, a measurement procedure and an output data format to characterize any four-color printing process. The output data (characterization) fileshould be transferred with any four-color (cyan, magenta, yellow and black) halftone image files to enable a color transformation to beundertaken when required. 29 pp.
Targets[edit]
Calibrating all devices involved in the process chain (original, scanner/digital camera, monitor/printer) is required for an authentic color reproduction, because their actual color spaces differ device-specifically from the reference color spaces.
An IT8 calibration is done with what are called IT8 targets, which are defined by the IT8 standards.
- Example
Vuescan It8
Special targets, implementing the IT8.7/1 (transparent target) or IT8.7/2 (reflective target) standards, are needed for calibrating scanners. These targets consists of 24 grey fields and 264 color fields in 22 columns:
- Column 01 to 12: HCL color model, which differ in Hue, Chroma, and Lightness
- Column 13 to 16: CMYK-ColorsCyan, Magenta, Yellow, and Key (black) in different steps of brightness
- Column 17 to 19: RGB-ColorsRed, Green, and Blue in different steps of brightness
- Column 20 to 22: undefined, producers' choice
After scanning such a target, an ICC profile gets calculated on the basis of reference values. This profile is used for all subsequent scans and assures color fidelity.
See also[edit]
Vuescan It8 Kalibrierung
References[edit]
- Romano, Richard and Frank. (1998). The GATF encyclopedia of graphic communications. GATF Press.
- Digital Color Imaging Handbook; Gaurav Sharma; ISBN978-0-8493-0900-7; 2002.
External links[edit]
- IT8 target sources
- IT8-enabled software
- ExactScan Pro, Windows, Mac, Linux
- SilverFast, Windows, Mac
- VueScan, Windows, Mac, Linux
- CoCa, Color camera calibrator, Windows, Linux
- Rough Profiler, Mac
- IT8 articles
