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Display Calibration Light Illusion Forums / Display Calibration /  
 

Add your own Correlation spectral files to ColourSpace

 
Author Steve

INF
Male 		#1 | Posted: 24 Apr 2023 13:11 
This thread has been edited as we have moved away from the proprietary EDR format, and now use an open .csv based Correlation file format.
The latest ColourSpace includes a WOLED Cor. File as an example.
Any user can now generate their own correlation files, as per the website User Guide.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ebr9999
ZRO
 #2 | Posted: 25 Apr 2023 18:07 
Not 100% sure about the format:
Manual says (with in bold my correction) : "Correlation files are simple .csv files, with a minimum of 3 lines, with each line being one of 401 floating point values.
The values need to be 380 to 780 nm in 1 nm increments, in Watts per Nm."
Here the data I generate from my Jeti saving a random spectrum reading as an isd file
Spoiler!
[Curve Information]
Name=#1
Data=#1
Class=TLWNumNode

[Comment]

[Measurement Conditions]
Measurement Mode=SpectralAnalysis

[Data]
Name=#1
Type=Double
NumberOfDataX=401
NumberOfDataY=2
X-MIN=380
X-MAX=780
X-Unit=nm
Y-Unit=W/m^2 sr nm
Data
380 1.383106E-06
381 1.208246E-06
382 1.103006E-06
383 1.801265E-06
384 2.958964E-06
385 2.731060E-06
386 2.459873E-06
387 2.278184E-06
388 2.223131E-06
389 2.250506E-06
390 2.922237E-06
391 3.524142E-06
392 3.739325E-06
393 4.365800E-06
394 5.289680E-06
395 5.908415E-06
396 6.727383E-06
397 8.442247E-06
398 1.017185E-05
399 1.189755E-05
400 1.383556E-05
401 1.585077E-05
402 1.810124E-05
403 2.025447E-05
404 2.231588E-05
405 2.418776E-05
406 2.618915E-05
407 2.907568E-05
408 3.199244E-05
409 3.497961E-05
410 3.709150E-05
411 3.942183E-05
412 4.361802E-05
413 4.701054E-05
414 4.956314E-05
415 5.176832E-05
416 5.371297E-05
417 5.459662E-05
418 5.561733E-05
419 5.679140E-05
420 5.751045E-05
421 5.828742E-05
422 5.992604E-05
423 6.064715E-05
424 6.028380E-05
425 6.104484E-05
426 6.181089E-05
427 6.044295E-05
428 5.970443E-05
429 5.972478E-05
430 6.059074E-05
431 6.189371E-05
432 6.437616E-05
433 6.675978E-05
434 6.898793E-05
435 7.165029E-05
436 7.410473E-05
437 7.432562E-05
438 7.496116E-05
439 7.608097E-05
440 7.760098E-05
441 7.916859E-05
442 8.029894E-05
443 8.116581E-05
444 8.173591E-05
445 8.258782E-05
446 8.332430E-05
447 8.299361E-05
448 8.429354E-05
449 8.724874E-05
450 8.768424E-05
451 8.788074E-05
452 8.895980E-05
453 8.962854E-05
454 8.991479E-05
455 9.272250E-05
456 9.577203E-05
457 9.810678E-05
458 1.001806E-04
459 1.020281E-04
460 1.053469E-04
461 1.088330E-04
462 1.112918E-04
463 1.137434E-04
464 1.161869E-04
465 1.177165E-04
466 1.193114E-04
467 1.214091E-04
468 1.230272E-04
469 1.243240E-04
470 1.267475E-04
471 1.288368E-04
472 1.297129E-04
473 1.312568E-04
474 1.332051E-04
475 1.331244E-04
476 1.332566E-04
477 1.340012E-04
478 1.359328E-04
479 1.384723E-04
480 1.388736E-04
481 1.394570E-04
482 1.403559E-04
483 1.389207E-04
484 1.364094E-04
485 1.328396E-04
486 1.304839E-04
487 1.301686E-04
488 1.324379E-04
489 1.355894E-04
490 1.369050E-04
491 1.378461E-04
492 1.381101E-04
493 1.397260E-04
494 1.416847E-04
495 1.426004E-04
496 1.426724E-04
497 1.416749E-04
498 1.407829E-04
499 1.397927E-04
500 1.379699E-04
501 1.365949E-04
502 1.356081E-04
503 1.348655E-04
504 1.342482E-04
505 1.340885E-04
506 1.346007E-04
507 1.357346E-04
508 1.351690E-04
509 1.346642E-04
510 1.352436E-04
511 1.348029E-04
512 1.336079E-04
513 1.323434E-04
514 1.304298E-04
515 1.269830E-04
516 1.240138E-04
517 1.213440E-04
518 1.220146E-04
519 1.229961E-04
520 1.244948E-04
521 1.263788E-04
522 1.284251E-04
523 1.291849E-04
524 1.288813E-04
525 1.270281E-04
526 1.264988E-04
527 1.265124E-04
528 1.274790E-04
529 1.285208E-04
530 1.296469E-04
531 1.309447E-04
532 1.318545E-04
533 1.309314E-04
534 1.306436E-04
535 1.308911E-04
536 1.317117E-04
537 1.319705E-04
538 1.304806E-04
539 1.291647E-04
540 1.279578E-04
541 1.273814E-04
542 1.275431E-04
543 1.291228E-04
544 1.291227E-04
545 1.284261E-04
546 1.274132E-04
547 1.270757E-04
548 1.276620E-04
549 1.267811E-04
550 1.256403E-04
551 1.253674E-04
552 1.250074E-04
553 1.245612E-04
554 1.232043E-04
555 1.219877E-04
556 1.217414E-04
557 1.201501E-04
558 1.176152E-04
559 1.165260E-04
560 1.155033E-04
561 1.144891E-04
562 1.148425E-04
563 1.157831E-04
564 1.135791E-04
565 1.120250E-04
566 1.114513E-04
567 1.106582E-04
568 1.098861E-04
569 1.096820E-04
570 1.085332E-04
571 1.064312E-04
572 1.069108E-04
573 1.077021E-04
574 1.079734E-04
575 1.082038E-04
576 1.084070E-04
577 1.089084E-04
578 1.097827E-04
579 1.114350E-04
580 1.137879E-04
581 1.164838E-04
582 1.181334E-04
583 1.196199E-04
584 1.208731E-04
585 1.202495E-04
586 1.189911E-04
587 1.170707E-04
588 1.145218E-04
589 1.113716E-04
590 1.099154E-04
591 1.093622E-04
592 1.108719E-04
593 1.113612E-04
594 1.112357E-04
595 1.112551E-04
596 1.118343E-04
597 1.134030E-04
598 1.129576E-04
599 1.118500E-04
600 1.113926E-04
601 1.113020E-04
602 1.118018E-04
603 1.129290E-04
604 1.140035E-04
605 1.144931E-04
606 1.144643E-04
607 1.140756E-04
608 1.136997E-04
609 1.136047E-04
610 1.140710E-04
611 1.139280E-04
612 1.135690E-04
613 1.133675E-04
614 1.130292E-04
615 1.125326E-04
616 1.125080E-04
617 1.128605E-04
618 1.142753E-04
619 1.147336E-04
620 1.145195E-04
621 1.146720E-04
622 1.142352E-04
623 1.126519E-04
624 1.120174E-04
625 1.114785E-04
626 1.085728E-04
627 1.060253E-04
628 1.038731E-04
629 1.050313E-04
630 1.062561E-04
631 1.059134E-04
632 1.076806E-04
633 1.107786E-04
634 1.119355E-04
635 1.133445E-04
636 1.151832E-04
637 1.163609E-04
638 1.173184E-04
639 1.182083E-04
640 1.184157E-04
641 1.179592E-04
642 1.188218E-04
643 1.193545E-04
644 1.186892E-04
645 1.171858E-04
646 1.152458E-04
647 1.132557E-04
648 1.126157E-04
649 1.137593E-04
650 1.139900E-04
651 1.144290E-04
652 1.160557E-04
653 1.152833E-04
654 1.128232E-04
655 1.113125E-04
656 1.109055E-04
657 1.124302E-04
658 1.158194E-04
659 1.196480E-04
660 1.220896E-04
661 1.242275E-04
662 1.260619E-04
663 1.262118E-04
664 1.266146E-04
665 1.280242E-04
666 1.295505E-04
667 1.310751E-04
668 1.319601E-04
669 1.320137E-04
670 1.311093E-04
671 1.327630E-04
672 1.343728E-04
673 1.345064E-04
674 1.356034E-04
675 1.372373E-04
676 1.382037E-04
677 1.398195E-04
678 1.423293E-04
679 1.435231E-04
680 1.447132E-04
681 1.470231E-04
682 1.478304E-04
683 1.476290E-04
684 1.451637E-04
685 1.396455E-04
686 1.292655E-04
687 1.202228E-04
688 1.136630E-04
689 1.166389E-04
690 1.233728E-04
691 1.328090E-04
692 1.385739E-04
693 1.438174E-04
694 1.483841E-04
695 1.561694E-04
696 1.645034E-04
697 1.704099E-04
698 1.739440E-04
699 1.756294E-04
700 1.757168E-04
701 1.777269E-04
702 1.832348E-04
703 1.909542E-04
704 1.989780E-04
705 2.055595E-04
706 2.099852E-04
707 2.128911E-04
708 2.198986E-04
709 2.256832E-04
710 2.295508E-04
711 2.333851E-04
712 2.369361E-04
713 2.394064E-04
714 2.364788E-04
715 2.299151E-04
716 2.134206E-04
717 1.960337E-04
718 1.773634E-04
719 1.751647E-04
720 1.798047E-04
721 1.953835E-04
722 2.046412E-04
723 2.097561E-04
724 2.039329E-04
725 2.013005E-04
726 2.026481E-04
727 2.080905E-04
728 2.138741E-04
729 2.185851E-04
730 2.276600E-04
731 2.392874E-04
732 2.573328E-04
733 2.742549E-04
734 2.898250E-04
735 3.007254E-04
736 3.093919E-04
737 3.141380E-04
738 3.224880E-04
739 3.321691E-04
740 3.408438E-04
741 3.494704E-04
742 3.582622E-04
743 3.641886E-04
744 3.698114E-04
745 3.751170E-04
746 3.774296E-04
747 3.795772E-04
748 3.842936E-04
749 3.880960E-04
750 3.911905E-04
751 3.902024E-04
752 3.911935E-04
753 3.945814E-04
754 3.936448E-04
755 3.912940E-04
756 3.870605E-04
757 3.629502E-04
758 3.251715E-04
759 2.529533E-04
760 1.850571E-04
761 1.203527E-04
762 1.012284E-04
763 9.915184E-05
764 1.214544E-04
765 1.651848E-04
766 2.155975E-04
767 2.722416E-04
768 3.183969E-04
769 3.580388E-04
770 3.828135E-04
771 3.975224E-04
772 4.028751E-04
773 4.083969E-04
774 4.129612E-04
775 4.158984E-04
776 4.160403E-04
777 4.162652E-04
778 4.189474E-04
779 4.177195E-04
780 4.149542E-04


Data looks what I should excerpt to "be installed into the i1D3 Support Files folder within the ColourSpace installation folder"
So each csv line has nm and Watt, for a max of 401 floating point values. Correct?

Author Steve

INF
Male 		#3 | Posted: 25 Apr 2023 18:14 
You just need three - ideally 'near' RGB primary, and near nominal peak to prevent clipping - sets of such data, but in lines/rows, NOT in columns.
(Your 'correction in bold is wrong.)
The provided WOLED_Example Cor. file has 4x lines/rows of 4 sets of such data - WRGB.
(The WRGB example values are approx. 100 nits based, and approx. Rec709 gamut to prevent excessive gamut compression due to the additional white pixel...)

Steve
Steve Shaw
Mob Boss at Light Illusion

Author ebr9999
ZRO
 #4 | Posted: 25 Apr 2023 20:35 
I see .... so basically three (RGB) or four (WRGB) rows, depending on the display type. I guess the row order is important, i.e. RGBW should not work ...

Author Steve

INF
Male 		#5 | Posted: 25 Apr 2023 20:47 
No, the row order is actually not important, but if doing just three RGB sets of values, its is logical.
And, you can have a row for any colour you want...
RGB is just the logical three - with W added for a WOLED, but you would get a result without W.
So you could do RGBCMY, or ANY other combination of ANY colours.
How well the correlation would work if you had three colours that were close together, would be questionable...

Steve
Steve Shaw
Mob Boss at Light Illusion

Author Omardris
ZRO
 #6 | Posted: 1 May 2023 10:27 
Most standard spectral files for the EODIS3 contain one or more RGBW or WRGB measurements, i.e. 4 to 20 lines.
I have just converted all the standard spectral files to CSV format for the new ColourSpace version and Ted will be releasing the package shortly.
Peter

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 Add your own Correlation spectral files to ColourSpace

 
 
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