ZBE CHROMIRA, Руководство пользователя

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Rev. 3/2001 47
If you intend to run a Densitometer Analysis after this Scanner Analysis, you can
skip straight to the Densitometer Analysis, then Apply Changes at the end of both
Analyses.
Performing a Densitometer Analysis
The Densitometer Analysis is used to correct the color of the Test Image, and to
get all of the steps in the Grey Scale at proper grey intervals, providing the best
tonal range for the photographic material being calibrated. To perform a
Densitometer Analysis, you will need a densitometer and a computer running the
Balance program.
It is highly recommended that you connect the densitometer to the computer
through its RS-232 serial port. This will save having to type in the 17 RGB readings
that are taken in this procedure. For this connection to work, you will need to
select the COM port number and the baud rate for your densitometer hookup
from the "Settings" button in the balance program.
1: To begin, click the "Densitometer" button on the Balance Program's main
window. This will display the Densitometer dialog box as well as a graph of
the target densities for
the range of patches from Black (Patch 0) to White (Patch 16). The program is
now ready to accept readings, starting with the black patch zero (0).
2: Read the 17 patches at the bottom area of the test image. Start with the black
Patch Zero (0). After each reading, the "Patch" number in the dialog box will
increment one count and the reading windows for R, G, and B will still look blank.
If you do not have the RS-232 port connection, you will have to type in the RGB
readings into spaces provided, then click the up arrow next to the "Patch" value.
You can always review your readings by using the up/down arrows next to the
"Patch" value. The graph view will also change to reflect your readings.
3: Review your D-max targets if this is the first Densitometer Analysis for this
material. In general, for paper materials (matte, gloss, etc.) and for "flex"