Workflow for creating ICC Profiles
Workflow for creating ICC Profiles
Workflow for creating ICC Profiles
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VUTEk Advisory Bulletin VAB-93<br />
<strong>Workflow</strong> <strong>for</strong> <strong>creating</strong> <strong>ICC</strong> <strong>Profiles</strong><br />
Using the ColorBurst RIP (7.31) “ColorCatch” and the PC<br />
Creating an <strong>ICC</strong> Profile<br />
Linearization<br />
Note: It is important that<br />
the printer is set up<br />
properly to run the<br />
material you will be<br />
profiling. This includes the<br />
platen and post heat<br />
temperatures, carriage<br />
height, bi-directional and<br />
step settings, and that all<br />
jets are firing.<br />
Revision C<br />
February 2004<br />
An <strong>ICC</strong> Profile can help maximize the color and tonal reproduction of images<br />
RIPped with the ColorBurst Software and printed on a VUTEk Printer. It is<br />
advised that an Output <strong>ICC</strong> Profile be created <strong>for</strong> each combination of ink,<br />
number of colors used when printing (4, 6 or 8), media, and model of printer.<br />
To accomplish this, the ability of the media to hold ink and the density of the<br />
ink throughout the tonal scale must be defined. This is achieved through the<br />
Linearization process. Linearization will allow you to standardize your color<br />
output by equalizing the steps between specified ink densities. You can use the<br />
Linearization settings to create consistent output and match output from multiple<br />
printers of the same type (all using the same ink, media, and settings).<br />
There are three major phases to this process.<br />
• Linearize ColorBurst <strong>for</strong> the combination of Ink and Media.<br />
• Determine the amount of Ink the Media can hold.<br />
• Create a Profile using the <strong>ICC</strong> Profile creation software.<br />
The PC software provided with ColorBurst is ColorCatch. A Macintosh version<br />
of this software, ChromaCapture, is also provided with ColorBurst. Both<br />
versions Support the following Spectrophotometers: GretagMacbeth SpectroScan,<br />
GretagMacbeth Eye-One, and X-Rite DTP-41.<br />
To initiate the linearization process, per<strong>for</strong>m the following:<br />
Step Action<br />
1 Load a Setup environment.<br />
When <strong>creating</strong> a Linearization file, you will need to print a file using<br />
“raw” ink data.<br />
a. On the main menu bar of ColorBurst, select Printer Setup�Select<br />
Printer Setup.<br />
VAB-93 Revision C 1 of 23
Figure 1.<br />
Setup (printer<br />
name).env<br />
Step Action<br />
b. In the c:\cbvutek_72\Profiling tools & Docs\Icc Profile Creations Setup<br />
Env folder, open the folder <strong>for</strong> your printer and select the setup file <strong>for</strong><br />
your printer and the numbers of colors (4, 6, 8) named “Setup (printer<br />
name).env” (Figure 1 on page 2).<br />
Step Action<br />
This will set all the options necessary <strong>for</strong> Linearization.<br />
Note: The Printer Setup files, Setup.env, will turn OFF the following options:<br />
<strong>ICC</strong> Profile and Linearization functions, and set the Color Adjustment and Ink<br />
Balance menus to the defaults.<br />
2 Print the linearization target.<br />
a. Go to File/Open and choose the folder (C:\cbvutek_72\Profiling Tools<br />
& Docs\Linearization and Profiling Targets). Inside this folder, there<br />
are several different targets.<br />
b. Choose the Lin target file that corresponds to the type of<br />
spectrophotometer you will be using (Figure 2 on page 3 and Figure 3<br />
on page 3).<br />
Note: The scaling and rotation <strong>for</strong> the Target files must remain at 100%.<br />
These files are <strong>for</strong>matted <strong>for</strong> specific spectrophotometers.<br />
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Figure 2.<br />
Lin Chroma Cap<br />
CMYK XY.tif<br />
Figure 3.<br />
Lin Chroma Cap<br />
CMYK Strip.tif<br />
Step Action<br />
c. Click the START button in the file in<strong>for</strong>mation box to print the target to<br />
a RTL file.<br />
The file will be printed with 100% of your CMYK primaries. By<br />
printing out at 100% ink, ColorBurst will be able to determine a<br />
printer's maximum ink density. The Linearization function is only<br />
concerned with the four solid inks, and not the light inks.<br />
Note: Be sure the printer temperature settings are correct <strong>for</strong> the material.<br />
3 Launch the data capture applications (VUTEk ColorCatch).<br />
a. Launch the VUTEk ColorCatch applications <strong>for</strong>m the shortcut icon on<br />
the desktop.<br />
VAB-93 Revision C 3 of 23
Figure 4.<br />
Path Selection<br />
Step Action<br />
b. Verify the default path where the data files will be saved and change it<br />
if necessary.<br />
Step Action<br />
To change the default path, select the Browse button next to the path<br />
location, in the Edit�Preferences menu (Figure 4).<br />
Note: The data file should be saved to the Output Profile folder <strong>for</strong> the printer<br />
type you are using in the ColorBurst installed folder. For example:<br />
C:\CBVutek_72\Profile\output\3360.<br />
c. Select New Job from the file menu or use the shortcut keys, CTRL-N.<br />
d. In the Create Job window, enter a name into the Job Name field<br />
(Figure 5 on page 5).<br />
This file will be saved into the default folder.<br />
e. Select the Device�Interface, and set the Mode to Reflective.<br />
Note: Always leave Illuminant at D50. Print Conditions fields are not used.<br />
f. Click OK.<br />
Note: After clicking OK, the job name becomes a sub-folder in the default<br />
folder.<br />
Note: Refer to “Trouble Shooting ColorCatch <strong>for</strong> PC Users” on page 20 <strong>for</strong><br />
in<strong>for</strong>mation on changing the default folder path or a Failed to Create Job<br />
error message.<br />
Note: X-Rite DTP-41 users go to step 4. GretagMacbeth SpectroScan users go<br />
to step 5.<br />
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Figure 5.<br />
Create Job Window<br />
Step Action<br />
Figure 6. ColorCatch Operating Menu<br />
4 For the X-Rite DTP-41, load and measure the target.<br />
a. Select the Choose a Target pull down menu and in the “Target name”<br />
field, select ColorBurst Strip Lin <strong>for</strong> the DTP-41 (Figure 6).<br />
b. Click Connect, the software will auto-sense the Baud Rate and then<br />
initialize and calibrate the Spectrophotometer. In the lower left corner<br />
the text line will show the progress.<br />
Note: Refer to (“Trouble Shooting ColorCatch <strong>for</strong> PC Users” on page 20) if<br />
you are having problems connection to the device.<br />
VAB-93 Revision C 5 of 23
Figure 7.<br />
Setting the<br />
Linearization Target<br />
Step Action<br />
c. Insert the Cyan strip on the printed target, into the DTP-41 up to the<br />
black line near the Number 1. Press the “Black” Button on the DTP-41<br />
to read the strip (Figure 7 on page 6).<br />
The strip should automatically be pulled in through the reader. You may<br />
need to give the strip a small push to start. The strip should travel<br />
straight through the device. If it is not moving straight, gently move the<br />
target strip in a straight line.<br />
d. Repeat step C <strong>for</strong> the Magenta, Yellow, and Black strips.<br />
e. When complete, a message box will appear indicating “Target Saved”.<br />
Click OK.<br />
The data file is saved to the Default Folder.<br />
Note: The “Position” or “Calibrate” button on the DTP-41 should not be<br />
needed.<br />
f. Skip to step 6.<br />
Step Action<br />
5 For the GretagMacbeth SpectroScan, load and measure the target.<br />
a. Select the Choose a Target pull down menu and in the “Target name”<br />
field, select ColorBurst Strip XY Lin (Figure 8 on page 7).<br />
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Figure 8. ColorBurst XY Lin Selection<br />
Figure 9.<br />
Robot Configuration<br />
Menu<br />
Step Action<br />
b. Click Connect, the software will initialize a connection with the XY<br />
table, check the Baud Rate, and per<strong>for</strong>m a Calibration. When finished it<br />
will display a message that Calibration Succeeded. Click Ok.<br />
c. Position the XY tables read head.<br />
• Place the printed Profile Target onto the SpectroScan XY Table.<br />
• Press the Pad Hold button on the table.<br />
• Select Position on the ColorCatch software.<br />
• The Robot Configuration Menu will appear(Figure 9 on page 7).<br />
Note: Do not change any settings in the Robot Configuration menu.<br />
VAB-93 Revision C 7 of 23
Figure 10. XY Table<br />
Step Action<br />
Step Action<br />
• Using the “arrow” buttons on the XY table, position the<br />
cross hairs on the read head over the black cross hairs in<br />
the upper left corner of the target.<br />
• When the cross hair is in the position, press Enter on the<br />
XY table (Figure 10).<br />
• Repeat <strong>for</strong> the top right and bottom right corners.<br />
d. Select OK on the Robot Configuration Menu (Figure 9 on page 7).<br />
e. Select the Start button in the ColorCatch menu (Figure 6 on page 5).<br />
The SpectroScan will now start to read the target patch automatically.<br />
f. When complete, a message box appears stating Target Saved. Click<br />
OK. The data filed is saved to the Default Folder (i.e. CBVutek_72\lin<br />
folder.<br />
6 Load and Read the Lin file - Density Based Linearization.<br />
a. In the ColorBurst Software, select the Options�Linearization menu<br />
(Figure 11 on page 9).<br />
b. Select Allow Linearization.<br />
c. Select Find and locate the .lin file that was created in step 4 or 5.<br />
d. This will load in the Original DMax (densities) from the .lin file.<br />
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Figure 11.<br />
Linearization Menu<br />
Figure 12.<br />
Linearization Options<br />
Dialog box<br />
Step Action<br />
e. Click Set Baseline Values and it will update your desired densities<br />
(Figure 12 on page 9).<br />
Step Action<br />
The Set Baseline Values button will reduce the original densities by<br />
5% and will display new values under the original values in the desired<br />
row. Lower density values allow the color controls to compensate <strong>for</strong><br />
small changes that may occur in the actual day-to-day printed densities.<br />
f. Optional, to move the .lin file to the default ColorBurst Lin folder<br />
select Copy.<br />
g. Select OK.<br />
Note For in<strong>for</strong>mation on Chroma Based Linearization see Addendum.<br />
VAB-93 Revision C 9 of 23
Determine the Ink Limit<br />
Figure 13.<br />
Vutek Media Ink Limit<br />
Test Files 1-3.eps<br />
Step Action<br />
7 Save the Printer Setup File.<br />
a. On the main menu bar of ColorBurst, select Printer Setup�Save<br />
Printer Setup; locate the proper folder and name the file. Do Not pick<br />
the Select Printer Setup menu.<br />
You should name the Printer Setup file according to the machine type,<br />
material and number of colors being printed.<br />
(i.e. XYZ Material_3360_4C.env).<br />
b. Click Save.<br />
To determine the amount of ink the media can hold:<br />
Step Action<br />
1 Determine the proper ink load <strong>for</strong> the material.<br />
a. Open the “Vutek Media Ink Limit Test Files 1-3.eps” file located in the<br />
C:\cbvutek_72\testfiles folder (Figure 13).<br />
Step Action<br />
Note: Check the Temperature, Step Size and Bi-directional settings are correct<br />
<strong>for</strong> the material.<br />
b. Select Start to RIP the target into a single RTL file.<br />
c. Print them on the material to be profiled.<br />
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Step Action<br />
Figure 14. Vutek Media Ink Limit Test File 1.eps<br />
Note: Check the Temperature, Step Size, and Bi-directional settings are correct<br />
<strong>for</strong> the material.<br />
2 On the Test File 1.eps image (Figure 14), look <strong>for</strong> the darkest patch that<br />
is uni<strong>for</strong>mly dry, does not bleed out into the white, does not show any<br />
dry banding or ink puddles, and has a solid fill with no material<br />
showing through (pinholes).<br />
Step Action<br />
On some materials you can see a difference in the shine or Gloss of the<br />
ink between the dry and wet areas.<br />
Note: Look <strong>for</strong> the highest level of ink that does not show any bleeding of the<br />
black into the red or yellow areas.<br />
3 Select the Color Adjustments from the Options menu (Figure 15 on<br />
page 12).<br />
VAB-93 Revision C 11 of 23
Figure 15.<br />
Color Adjustment<br />
Dialog Box<br />
Step Action<br />
To create a profile:<br />
Step Action<br />
The Color Adjustments Dialog box will open up to the “Adjustments<br />
tab”.<br />
a. In the Color Adjustments Dialog box, click on the Ink Limits tab.<br />
b. Click on the Enable Ink Limiting check box and enter the total ink<br />
limit established in Step 2, in the “Total ink limit %” field.<br />
All other features in this menu should be left at the defaults.<br />
c. Click OK.<br />
4 Re-save the Printer Setup File.<br />
a. On the main menu bar of ColorBurst, select Printer Setup�Save<br />
Printer Setup, and select the printer setup file that you named in step 7<br />
of the linearization procedure. Click Save.<br />
b. Click OK to overwrite the existing file.<br />
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Building the <strong>ICC</strong> Profile<br />
Figure 16.<br />
Strip CMYK Profile<br />
To build the <strong>ICC</strong> profile, per<strong>for</strong>m the following:<br />
Step Action<br />
1 Print the <strong>ICC</strong> Profile patch targets.<br />
a. Open, RIP, and Print the <strong>ICC</strong> Profile patch targets.<br />
• The Eye-One and the DTP 41 use the “Strip CMYK Profile Strip<br />
1.tif” file. There are 4 targets that must be printed and read (Page 1-<br />
4) (Figure 16).<br />
• The GretagMacbeth Spectroscan uses the “XY CMYK Profile Page<br />
1.tif” file. There are 2 targets that must be printed and read (Page 1<br />
and 2) (Figure 17 on page 14).<br />
Note: Do not scale the patches. They are <strong>for</strong>matted to be used with specific<br />
spectrophotometers. There will be several files to print since the ColorBurst<br />
Profiler uses readings from over 1248 patches to get the best reading of a<br />
printer, ink, and media combinations total gamut.<br />
VAB-93 Revision C 13 of 23
Figure 17.<br />
XY CMYK Profile<br />
Step Action<br />
2 Read the printer targets.<br />
a. If the VUTEk ColorCatch application is still open, select the Target<br />
name <strong>for</strong> your device (i.e. <strong>for</strong> the DTP-41, “Strip CMYK Profile” or <strong>for</strong><br />
the SpectroScan, “XY CMYK Profile”) (Figure 6 on page 5).<br />
b. If the ColorCatch is not open, launch ColorCatch and select File�Open<br />
Job.<br />
c. From the Select Job Dialog box, highlight the proper job and click OK.<br />
3 Select the type of target to be measured (Figure 6 on page 5).<br />
a. Click on the Target Name pull down menu and select (i.e. <strong>for</strong> the DTP-<br />
41, “Strip CMYK Profile” or <strong>for</strong> the SpectroScan, “XY CMYK<br />
Profile”) (Figure 6 on page 5).<br />
Note: For the X-Rite DTP-41 go to step 4. For the GretagMacbeth<br />
SpectroScan to step 5.<br />
4 For the X-Rite DTP-41, read in the Profile Target Patches.<br />
a. Insert strip (A) on target page 1 into the DTP-41 and press the button.<br />
b. Once the column is pulled through the device move on to the next<br />
column (B). Repeat steps a and b <strong>for</strong> all columns.<br />
c. Once a page is completed, the software will automatically move to the<br />
next target page.<br />
Note: Verify that the target is straight. You can adjust the target slightly as it<br />
moves through the DTP-41. If the target is not straight and/or you receive a<br />
bad reading(Figure 18 on page 15), re-read the column by selecting the<br />
column on the screen with the mouse and re-insert the column into the device.<br />
14 of 23 VAB-93 Revision C
Figure 18.<br />
Device Error Dialog<br />
Box<br />
Step Action<br />
d. After completing all four pages, a message will appear “Target Saved”.<br />
Click OK.<br />
Note: PC ColorCatch will add the .cie extension to the job name (i.e. XYZ<br />
Material 4C.cie). Two files will be saved into the default path. The .cie file is<br />
used in the next step not the .cie.spectraldata file.<br />
e. Skip to Step 8.<br />
5 For the GretagMacbeth SpectroScan, read in the profile target patches:<br />
a. Place the printed copy of the XY CMYK Profile - Page 1.tif onto the<br />
SpectroScan XY table.<br />
b. Press the “Pad Hold” button on the XY Table.<br />
c. Press the “Position” button in the ColorCatch software.<br />
d. The Robot Configuration menu will appear. Do not change any settings<br />
in this menu.<br />
e. Using the “arrow” buttons on the XY table, position the cross hairs on<br />
the read head over the black cross hairs in the upper left corner of the<br />
target.<br />
f. When the cross hair is in position press the “Enter” button on the XY<br />
table.<br />
g. Repeat <strong>for</strong> the top right and bottom right corners.<br />
h. Once the cross hair has been positioned on three corners, select the OK<br />
button on the Robot Configuration menu.<br />
i. Select Start on the main ColorCatch menu. The GretagMacbeth<br />
Spectroscan XY table will now start to read the target. When finished<br />
with Page 1, you will be prompted to attach Page 2 (Figure 19 on<br />
page 16). Click OK and attach page 2 of the GretagMacbeth<br />
Spectroscan XY Table.<br />
VAB-93 Revision C 15 of 23
Figure 19.<br />
Page Prompt Dialog<br />
Box<br />
Step Action<br />
j. When the second page is finished, a message will appear “Target<br />
Saved”. Click OK.<br />
Note: PC ColorCatch will add the .cie extension to the job name (i.e. XYZ<br />
Material 4C.cie). Two files will be saved into the default path. The .cie file is<br />
used in the next step not the .cie.spectraldata file.<br />
6 Create an <strong>ICC</strong> Profile using ColorBurst's Built-in <strong>ICC</strong> Profile software.<br />
a. In ColorBurst, go to Options�<strong>ICC</strong> Profile Options �Build Profile Tab<br />
menu.<br />
b. Click Find then go to the folder where PC ColorCatch saved the<br />
measurements.<br />
c. Select your measurement file (it will end in .cie).<br />
Note: ColorBurst will only recognize .cie files.<br />
Note: Most profiles can be built with the Default settings. It is recommended<br />
that the Ink Limit and Black Controls be set to the following:<br />
Total Ink - 300% (between 200% - 320% depending on the material)<br />
Total Black Ink - 100%<br />
Black Starting Point - 20%<br />
Black Intensity - 65%,<br />
Color GCR - 0%<br />
Neutral GCR - 0%<br />
Note: For later reference the “Profile Descriptor” data entry line can be filled<br />
in with the in<strong>for</strong>mation entered in the ink limit values;<br />
i.e. 300 100 20 60 0 0.<br />
This in<strong>for</strong>mation will appear under the profile name in the Output Profile<br />
menu and when the profile is used in some other application such as<br />
PhotoShop.<br />
16 of 23 VAB-93 Revision C
Figure 20.<br />
<strong>ICC</strong> Profile Options<br />
Step Action<br />
Table 1. <strong>ICC</strong> Profile Options - Build Profile Settings Description<br />
Control Description<br />
d. Select Build Profile and your profile will be generated and saved into<br />
the Output Profile folder.<br />
You could also select the Prompt <strong>for</strong> Output File Name box and give it a<br />
different name or location.<br />
Note: For a complete description of what each setting does, please refer to<br />
Table 1.<br />
Total Ink Limit This setting will limit the total ink even further. It is probably the most<br />
frequently used feature in building profiles. If your patches come out a little<br />
wet choose a total ink limit of 300% <strong>for</strong> your first test. If it is still wet go to<br />
250%, if it is still wet after that go to 200%. Remember, this is ink limiting<br />
on top of all the other ink limiting you have done. It tends to be much less<br />
dramatic than other ink limiting methods. This is the most often used<br />
feature.<br />
VAB-93 Revision C 17 of 23
Control Description<br />
Total Black Ink This setting will further limit your total black ink. If your prints are dark,<br />
you could use this feature to lighten them up a bit. It should be used<br />
sparingly.<br />
Black Starting Point This defines the starting point <strong>for</strong> where black ink should be used. Prior to<br />
the Black starting point, all Blacks are CMY builds. After the starting point,<br />
Black color Builds will be a combination of CMY and Black.<br />
Black Intensity This determines the rate at which black ink is added once the black starting<br />
point has been reached. For example: a black intensity of 30 is a very slow<br />
build <strong>for</strong> the black channel and a black of 70 is a much faster build. The<br />
default is set at 60 so if a deeper black is desired a setting of 90 or 100 is<br />
recommended.<br />
Neutral GCR Takes control of the NEUTRAL AXIS/GRAYS only. Over-rides the black<br />
starting point. The Higher the neutral GCR, the more quickly Black will be<br />
added and CMY will be removed. This should be used very sparingly as<br />
prints tend to speckle when you use it.<br />
Color GCR Has the same function as Neutral GCR, but will add Black and remove<br />
CMY in colors other than neutral. This should be used very sparingly as<br />
prints tend to speckle when you use it.<br />
Step Action<br />
7 Load the <strong>ICC</strong> Profile.<br />
a. Load the <strong>ICC</strong> Profile into ColorBurst by going to the Options\<strong>ICC</strong><br />
<strong>Profiles</strong> menu and select the General tab.<br />
b. Select Enable <strong>ICC</strong> profile color management.<br />
c. Select the Output <strong>Profiles</strong> tab and turn on the CMYK color Type by<br />
selecting the On/Off button. (Figure 21 on page 19).<br />
d. Select Find and locate the <strong>ICC</strong> Profile that was just created. Select OK.<br />
18 of 23 VAB-93 Revision C
Figure 21.<br />
<strong>ICC</strong> Profile Options -<br />
Output <strong>Profiles</strong><br />
Step Action<br />
8 Re-save the Printer Setup file.<br />
a. On the main menu bar of ColorBurst, select Printer Setup�Save Printer<br />
Setup and select the printer setup file that you named in step 7 of the<br />
linearization procedure. Click Save.<br />
b. Click OK to overwrite the existing Printer Setup File.<br />
The Profile is now complete and you should now be ready to print<br />
images on this material.<br />
VAB-93 Revision C 19 of 23
Trouble Shooting ColorCatch <strong>for</strong> PC Users<br />
Changing the Default Path where Jobs are Saved<br />
Figure 22.<br />
Saving to a Local<br />
Drive<br />
Saving the Data to a Local Drive:<br />
Step Action<br />
1 From the Edit\Preferences menu, select Browse (Figure 22 on<br />
page 20).<br />
2 Select drive and folder location to save the data.<br />
3 Click OK.<br />
Saving Data to a Network Drive:<br />
Step Action<br />
1 Prior to setting the default path in ColorCatch the network drive must<br />
be mapped to a local drive letter on the PC where ColorCatch is<br />
installed (Figure 23 on page 21).<br />
2 Form the Desktop left click My Network Places.<br />
3 Click Map Network Drive.<br />
4 Select the drive and folder you want to use.<br />
5 Click Finish.<br />
6 Open ColorCatch, select the Browse button from the Edit�Preferences<br />
menu.<br />
7 Select the drive and folder you want to use.<br />
8 Click OK.<br />
20 of 23 VAB-93 Revision C
Figure 23. Saving to a Network Drive<br />
Naming a Job<br />
A unique name must be entered each time you start a new job.<br />
To re-enter the job name:<br />
Communications Problems with the DTP-41 or Spectroscan<br />
No Device Found<br />
Step Action<br />
1 If you enter a name in the Name Job field that already exists in the<br />
default folder, ColorCatch will prompt that it “Failed to create Job”.<br />
2. Click OK and enter a new name.<br />
To Select the Device:<br />
Step Action<br />
1. Launch ColorCatch.<br />
2. From the menu bar, select Edit�Preferences�Device (Figure 24 on<br />
page 22).<br />
3. From the Interface pull down menu select the correct COM port.<br />
VAB-93 Revision C 21 of 23
Figure 24.<br />
Device Menu<br />
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Addendum: Using the Chroma based Linearization<br />
The Chroma Based Linearization can help to open the shadow detail and allow<br />
<strong>for</strong> a greater amount of ink to be used.<br />
The “Use chroma based linearization” checkbox is available when a LIN file<br />
that contains both ink density and L*a*b data is loaded. The PC ColorCatch<br />
software creates LIN files with both ink density and L*a*b data.<br />
When this box is checked, the L*a*b data in the LIN file is used to per<strong>for</strong>m<br />
chroma based linearization; the ink density data in the LIN file will be ignored.<br />
When this box is not selected, the ink density data will be used <strong>for</strong> linearization<br />
and any L*a*b data is ignored. If the a LIN file containing L*a*b data has not<br />
been loaded, this checkbox will be greyed out and linearization will be based<br />
on ink density.<br />
The Chroma Based Linearization can help to open the shadow detail and allow<br />
<strong>for</strong> a greater amount of ink to be used.<br />
(Chroma values will typically be in the range of 60-80 <strong>for</strong> CMK and 85-110 <strong>for</strong><br />
Y, and will vary based on the ink set).<br />
Note: PressVu UV Customers<br />
Chroma Based Linearization should not use the PressVu UV.<br />
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