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(more info)
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Input files types:
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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