PatchTool Detailed Specs

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  PatchTool Detailed Specs

Specifications
System requirements

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Specifications (screenshots)

Input files types:

• CXF
  • Recognized data type: spectrum
• CGATS
  • Recognized data types: XYZ, xyY, L*a*b*, L*C*h*, RGB, CMYK, spectral data
  • Recognizes ECI2002 color lists; switch between the Measured, Random, and Visual layouts.
• Plain text
  • Recognized data types: XYZ, xyY, L*a*b*, L*C*h*, RGB, CMYK, spectral data
  • See Appendix-A of the Help manual for detailed information on plain text file format.
• PatchTool Compare file (NEW in V-2.3)
  • Any exported Compare file obtained from "Select Compare" or "Display Check".

  The following data formats are supported:

• Spectral data
  • The spectral data can be scaled either between zero and one, typical of files generated with GretagMacbeth software, or between 0 and 100%, typical of files generated by X-Rite software.
  • The spectral range can be either from 380 nm to 730 nm, with values every 10 nm, typical of files generated with GretagMacbeth software, or from 400 nm to 700 nm, typical of files generated by X-Rite software.
• RGB encoding
  • RGB data can be encoded in 8 bit, 15 bit, or 16 bit format, or scaled between 0 and 100%.

File extensions:

• The preferred file extension for CXF files is “.cxf” but “.xml” files will also be opened and checked for compatibility with the CXF format.
• The preferred file extensions for CGATS and “plain text” files are “.txt” and “.csv”. PatchTool will also open color lists saved using other file extensions, as the program will search for standard file tags and color space data names. In particular, PatchTool will open files opened in spreadsheet programs and resaved with the “.csv” extension.

Accepted data delimiters:

• Tab-Delimited-Format (TDF)
• Comma-Separated-Values (CSV; either “,” or “;”)
• Space delimited data

Info display:

• Patch file, patch name and patch ID
• View the values of two colorimetric data types of two samples simultaneously.
• Colorimetric data types: RGB, CMYK, L*a*b*, L*C*h*, XYZ
• RGB spaces: Adobe RGB, Apple RGB, Generic RGB, ProPhoto RGB, sRGB
• RGB options: 8 bit, 15bit+ (as shown in Photoshop "16 bit"), "true" 16 bit, or 100% scale
• Color-difference between two samples
• Graph of the two samples' spectral data (when available)

Color-difference:

• Supported formulas: CIELAB, CIE94(1:1), CIEDE2000
• DeltaE* Info display options: DeltaE* plus Delta L*a*b*, Delta L*C*h*, or Delta L*C*H*
• Delta L*, C*, and H* can be viewed weighted or un-weighted (CIE94 and CIEDE2000).
• Delta h*: When larger than 180 degrees, the difference can be shown as computed or as the complement of 360 degrees.
• In the "Compare" window: Delta C, M, Yellow, K, R, G, B, x, y, X, Y, Z, E*, L*, a*, b*, C*, h*, and H*
• In the "Compare" window: Sort the patches using absolute or non-absolute color-differences.

Statistical data from compared files:

• Histogram of the selected parameter
• Graph and data of the Cumulative Relative Frequency (CRF)
• Selectable parameter: Delta C, M, Yellow, K, R, G, B, x, y, X, Y, Z, E*, L*, a*, b*, C*, h*, or H*
• DATA
  • Average: For all samples; the best 90%; and the worst 10%
  • Sigma (standard deviation): For all samples; the best 90%; and the worst 10%
  • Maximum error: For the 10th percentile; the median (50th perc.); the 90th and 95th perc.; and for all samples
• Compute stats on absolute values or on actual values (mix of negative and positive values)
• Compute separate negative and positive stats or compute the stats on mixed values

Out-of-gamut RGB data:

• RGB data is not clipped to zero or 255; negative values and values higher than 255 are kept and saved. The out-of-gamut values are clipped only for display purposes.

• Negative RGB values and values higher than 255 can also be used for input. They are processed as per the encoding algorithm described in the PIMA 7667:2001 Standard: “Photography – Electronic still picture imaging – Extended sRGB color encoding – e-sRGB” (PIMA: Photographic and Imaging Manufacturers Association).

Output files types:

• DATA
  • CGATS and “plain text”: User selectable data: ID, Name, XYZ, xyY, L*a*b*, L*C*h*, RGB, CMYK, Munsell Hue-Value-Chroma, and spectral data
  • RGB spaces: Adobe RGB, Apple RGB, Generic RGB, ProPhoto RGB, sRGB
  • RGB encoding: 8 bit, 15bit+ (as shown in Photoshop "16 bit"), "true" 16 bit, and 100% scale
  • Spectral data - Range: 380 to 730 nm or 400 to 700 nm
  • Spectral data - Scale: 0-1 or 0-100%
• IMAGES
  • Bitmap (.BMP) (Windows only)
  • Pict (.PCT) (Mac only)
  • JPEG (.JPG)
  • TIFF (.TIF): RGB, L*a*b*, or CMYK; all in 8 bit or 16 bit

Supported instruments for display measurements:

• Datacolor Spyder2 (including the Spyder2express and Spyder2TV)
• Datacolor Spyder3
• GretagMacbeth (X-Rite) Eye-One Display and Display 2
• GretagMacbeth (X-Rite) Eye-One Pro
• MonacoOPTIX (X-Rite) DTP94

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System requirements

Windows OS:

• Minimum:
  • Windows 2000
  • 750 MHz
  • 512 MB RAM
  • 1024 x 768 display, 32 bit color
• Recommended:
  • Windows 2000 / XP / Vista
  • 1.0+ GHz
  • 1+ GB RAM
  • 1280 x 1024 display, 32 bit color
  • Calibrated display

Mac OS:

• Minimum:
  • Mac OS X
  • 750 MHz
  • 512 MB RAM
  • 1024 x 768 display, 32 bit color
• Recommended:
  • Mac OS X 10.4
  • 1.0+ GHz
  • 1+ GB RAM
  • 1280 x 1024 display, 32 bit color
  • Calibrated display
• Compatibility:
  • PowerPC and Intel Mac (Available in "Universal" and "Intel" packages)
  • The Windows version is compatible with Windows OS on a dual-boot Mac

Help file:

• Requires a PDF file type reader. As a minimum, Version 5 of "Adobe Reader", formerly named "Acrobat Reader", is required. The latest version of this program is available at the following Web site: http://www.adobe.com/products/reader/ .

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Last modification : 28 July 2008