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Display Calibration Light Illusion Forums / Display Calibration /  
 

Add your own EDR spectral files in ColourSpace

 
Author Omardris
ZRO
#1 | Posted: 18 Aug 2022 11:28 
Hello,
the Xrite i1 Display Pro (EODIS3) series sensors are very popular and well supported by ColourSpace.
To improve the measurement accuracy without having to buy a spectrometer yourself, Xrite has introduced the system of spectral files (*.edr) and also provides some files.
Unfortunately, these files are now quite outdated, mostly for monitors, and moreover, the programs and companies are bound to the given list of Xrite.
It would be nice if one could add own EDR files to this list.
Therefore, the user has to do it himself, if he wants to add a new EDR file for his display in the list.

The following instructions describe the addition of own spectral files to the list, which are then also displayed and correctly loaded in CS.
The existing standard entries of Xrite are not changed !
This requires some steps, of which only the last one is a bit more difficult for the normal user.
As a tool you need:
- a simple text editor (the one from Windows is enough) for the text files and
- a hexeditor for binary files e.g. the freeware "Hex-editor MX" (Yes I know, that sounds dangerous).

The subdirectory with the list of EDR files are in the ColourSpace program folder:
...\ColourSpace\i1d3 Support Files
or
...\ColourSpaceZRO\i1d3 Support Files
The list consists of two files:
- "I1D3Mapping.txt" - here the EDR files are assigned to an ordinal numbers.

i1d3Mapping

- "TechnologyStrings.txt" - here the ordinal numbers are assigned to specific display technologies.

TechnologyStrings

In ColourSpace then only an excerpt from the file TechnologyStrings.txt" is shown:

EDR List CS

As an example we now assume that we want to add the two files "JVC_NX9.edr" and "JVC_NZ9.edr":

Step 1: Make a backup copy of the complete directory "i1d3 Support Files" and save it outside CS !!! (for security)

Step 2: Copy the new EDR files into this folder. (reasonable file names are advantageous - best use the device name).
Here the folder with the new EDR-files:

EDR files

Step 3: Set the position (=order number) of the file - I strongly recommend here to put a new file at the end of the existing list.
Explanation: The list positions 0 to 64 are not all occupied, but should not be used for own EDR files.
Therefore I start for own EDR files with the position 80. Then there is still good place below for official changes.
The file "JVC_NX9.edr" gets the number 80 and "JVC_NZ9.edr" the number 81.

Step 4: Open the file "I1D3Mapping.txt" with the text editor and add the following two lines at the end (no spaces):
80,JVC_NX9.edr
81,JVC_NZ9.edr

edit i1d3Mapping

Save the file and close it.

Step 4: Open the file "TechnologyStrings.txt" with the text editor and add the following two lines at the end (no spaces):
80,JVC_NX9
81,JVC_NZ9

edit TechnologyStrings

Save and close the file.

Now it gets exciting, because now comes the real trick. We enter the order numbers into our EDR files.

Step 5: Take a deep breath and only then open the file "JVC_NX9.edr" with the HexEditor and search the position 0x0160

edit JVC_NX9.edr

Enter the number 50 at this position. The hex number 50 corresponds to the decimal number 80 (5 x 16 + 0).

JVC-NX9.edr

Save and close the file.

Step 6: take another deep breath, then open the file "JVC_NZ9.edr" with the HexEditor and search again for the position 0x0160.
At this position enter the number 51. The hex number 51 corresponds to the decimal number 81 (5 x 16 +1).

edit JVC_NZ9

Save and close the file.

That was it !!

Step 7: Connect EODIS3, open ColourSpace and then look into the EDR file selection.
There you will see the two new options:

new EDR list CS

Unfortunately the two *.txt files are overwritten again with a CS update. Therefore you should save the edited ones in another directory and unfortunately you have to copy them back to the "i1d3 Support Files" directory after a CS update.
Peter

Author mrtickleuk
ZRO
Male
#2 | Posted: 18 Aug 2022 16:35 
Excellent clear instructions, and I really like your writing style and humour! Thanks (I took a deep breath!)

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