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B
B-1 Importing density measurements
This appendix describes Simple ASCII File Format, which can be used to import
density measurements from measurement devices. To use your own measurement data
from an alternate measurement instrument, record your individual readings in a text
file and structure it as follows.
Simple ASCII Import File Format (SAIFF)
This format describes Status T measurement data for import into the ColorWise Pro
Tools Calibrator. The three possible file formats are:
• 1D Status T density for EFI 34 patch page
• 1D Status T density for EFI 21 patch page
• 1D Status T density for other pages (maximum of 256 patches per ink)
The file format is ASCII and has no tabs. A single space or multiple spaces are used as
delimiters. Blank lines are not allowed. Each line in the file represents four patches (C,
M, Y, K) of a specific ink value. Comments may be on any line in the file, and these
lines start with a pound sign (#) followed by a space. A line with a pound sign followed
by any character other than a space has been reserved. Comments must be on an entire
line by themselves.
Each line of data contains five values. The first number is the sequential patch number
(for EFI 34 and EFI 21 pages) or the ink value percentage (for other pages). The four
values that follow are the density values of C, M, Y, and K of the corresponding patch.
Lines are ordered either by increasing sequential patch numbers, or by increasing the
ink percentage.
For Windows computers, the file extension must be .cm1. For Mac OS computers, the
file type must be ‘TEXT’.
Measurement data in EFI 34 and EFI 21 are paper-relative. For other pages, if the first
line corresponds to zero ink value, the Calibrator assumes that the measurement data is
absolute and adjusts it to become paper-relative by subtracting the density values of the
first line from the remaining patches.
Appendix B:
Importing
density
measurements