Seeking advise. Not certain which color space to use as there seem to be competing benefits.
I'm doing a scan project of about 9k slides, mostly Kodachrome. I have raw scanned 4k of them to SF8 HDR thus far and will now post process those and will be delivering them via a Lightroom Catalogue when project is finished. The project will be housed on PC and likely not be color managed.
If I use ARGB they could get better prints IF they get a decent photo printer, and want to print. But may not show well on screen or via a projector.
sRGB would limit printing at home, but that may not be employed anyways. It would be safer for an uncalibrated screen/projector though.
Thanks for any input on this. Could be dammed if you do and dammed if you don't.
Being curious, and already having half the code, I completed a program to scan tif files in either Adobe RGB or ProPhoto RGB, and print a summary of what fraction of the colors, clipped to sRGB, exceed various levels measured in Delta E 2000. Here's a summary of the Roman 16 image set provided in I1Profiler and the Kodak, PDI image from DryCreek. For the latter, a second image has their added synthetic colors removed.
All the images, except the 3 black and white ones, show some fraction of dE00 clipping. Most of the Roman images are designed to stress printing and it's pretty easy to see the color shifts soft proofing them against sRGB. The widely available PDI image has little visible change outside of the synthetics DryCreek added and the Colorchecker Cyan patch.
Image File: roman16_01_highkey.tif
Fraction of dE00 Between 0 and 1: 0.999979
Fraction of dE00 Between 1 and 2: 0.000019
Fraction of dE00 Between 2 and 3: 0.000000
Fraction of dE00 Between 3 and 4: 0.000002
Image File: roman16_02_midtone.tif
Fraction of dE00 Between 0 and 1: 0.999775
Fraction of dE00 Between 1 and 2: 0.000153
Fraction of dE00 Between 2 and 3: 0.000034
Fraction of dE00 Between 3 and 4: 0.000015
Fraction of dE00 Between 4 and 5: 0.000013
Fraction of dE00 Between 5 and 6: 0.000010
Image File: roman16_03_lowkey.tif
Fraction of dE00 Between 0 and 1: 0.999651
Fraction of dE00 Between 1 and 2: 0.000141
Fraction of dE00 Between 2 and 3: 0.000084
Fraction of dE00 Between 3 and 4: 0.000061
Fraction of dE00 Between 4 and 5: 0.000034
Fraction of dE00 Between 5 and 6: 0.000027
Fraction of dE00 Between 6 and 7: 0.000002
Image File: roman16_04_cyan.tif
Fraction of dE00 Between 0 and 1: 0.583319
Fraction of dE00 Between 1 and 2: 0.027711
Fraction of dE00 Between 2 and 3: 0.024007
Fraction of dE00 Between 3 and 4: 0.043395
Fraction of dE00 Between 4 and 5: 0.061867
Fraction of dE00 Between 5 and 6: 0.209625
Fraction of dE00 Between 6 and 7: 0.045450
Fraction of dE00 Between 7 and 8: 0.003613
Fraction of dE00 Between 8 and 9: 0.001002
Fraction of dE00 Between 9 and 10: 0.000013
Image File: roman16_05_magenta.tif
Fraction of dE00 Between 0 and 1: 0.880889
Fraction of dE00 Between 1 and 2: 0.025840
Fraction of dE00 Between 2 and 3: 0.024633
Fraction of dE00 Between 3 and 4: 0.030432
Fraction of dE00 Between 4 and 5: 0.028466
Fraction of dE00 Between 5 and 6: 0.007855
Fraction of dE00 Between 6 and 7: 0.001801
Fraction of dE00 Between 7 and 8: 0.000073
Fraction of dE00 Between 8 and 9: 0.000008
Fraction of dE00 Between 9 and 10: 0.000002
Image File: roman16_06_yellow.tif
Fraction of dE00 Between 0 and 1: 0.723625
Fraction of dE00 Between 1 and 2: 0.152345
Fraction of dE00 Between 2 and 3: 0.062822
Fraction of dE00 Between 3 and 4: 0.028361
Fraction of dE00 Between 4 and 5: 0.018726
Fraction of dE00 Between 5 and 6: 0.013643
Fraction of dE00 Between 6 and 7: 0.000477
Image File: roman16_07_red.tif
Fraction of dE00 Between 0 and 1: 0.705635
Fraction of dE00 Between 1 and 2: 0.070421
Fraction of dE00 Between 2 and 3: 0.023797
Fraction of dE00 Between 3 and 4: 0.021342
Fraction of dE00 Between 4 and 5: 0.025472
Fraction of dE00 Between 5 and 6: 0.039290
Fraction of dE00 Between 6 and 7: 0.097611
Fraction of dE00 Between 7 and 8: 0.016264
Fraction of dE00 Between 8 and 9: 0.000164
Fraction of dE00 Between 9 and 10: 0.000004
Image File: roman16_08_green.tif
Fraction of dE00 Between 0 and 1: 0.507498
Fraction of dE00 Between 1 and 2: 0.034618
Fraction of dE00 Between 2 and 3: 0.068252
Fraction of dE00 Between 3 and 4: 0.249225
Fraction of dE00 Between 4 and 5: 0.098253
Fraction of dE00 Between 5 and 6: 0.030427
Fraction of dE00 Between 6 and 7: 0.009730
Fraction of dE00 Between 7 and 8: 0.001682
Fraction of dE00 Between 8 and 9: 0.000309
Fraction of dE00 Between 9 and 10: 0.000006
Image File: roman16_09_blue.tif
Fraction of dE00 Between 0 and 1: 0.975537
Fraction of dE00 Between 1 and 2: 0.006030
Fraction of dE00 Between 2 and 3: 0.014454
Fraction of dE00 Between 3 and 4: 0.003712
Fraction of dE00 Between 4 and 5: 0.000216
Fraction of dE00 Between 5 and 6: 0.000036
Fraction of dE00 Between 6 and 7: 0.000015
Image File: roman16_10_olive.tif
Fraction of dE00 Between 0 and 1: 0.999515
Fraction of dE00 Between 1 and 2: 0.000393
Fraction of dE00 Between 2 and 3: 0.000080
Fraction of dE00 Between 3 and 4: 0.000010
Fraction of dE00 Between 4 and 5: 0.000002
Image File: roman16_11_brown.tif
Fraction of dE00 Between 0 and 1: 0.998388
Fraction of dE00 Between 1 and 2: 0.001046
Fraction of dE00 Between 2 and 3: 0.000382
Fraction of dE00 Between 3 and 4: 0.000168
Fraction of dE00 Between 4 and 5: 0.000010
Fraction of dE00 Between 5 and 6: 0.000006
Image File: roman16_12_pastel.tif
Fraction of dE00 Between 0 and 1: 0.989521
Fraction of dE00 Between 1 and 2: 0.008827
Fraction of dE00 Between 2 and 3: 0.001144
Fraction of dE00 Between 3 and 4: 0.000340
Fraction of dE00 Between 4 and 5: 0.000153
Fraction of dE00 Between 5 and 6: 0.000015
Image File: roman16_13_coloured.tif
Fraction of dE00 Between 0 and 1: 0.604999
Fraction of dE00 Between 1 and 2: 0.194161
Fraction of dE00 Between 2 and 3: 0.091016
Fraction of dE00 Between 3 and 4: 0.063803
Fraction of dE00 Between 4 and 5: 0.008682
Fraction of dE00 Between 5 and 6: 0.018504
Fraction of dE00 Between 6 and 7: 0.015707
Fraction of dE00 Between 7 and 8: 0.001398
Fraction of dE00 Between 8 and 9: 0.001081
Fraction of dE00 Between 9 and 10: 0.000575
Fraction of dE00 Between 10 and 11: 0.000067
Fraction of dE00 Between 11 and 12: 0.000002
Fraction of dE00 Between 12 and 13: 0.000002
Fraction of dE00 Between 13 and 14: 0.000002
Image File: roman16_14_highkey_BW_rgb.tif
Fraction of dE00 Between 0 and 1: 1.000000
Image File: roman16_15_midtone_BW_rgb.tif
Fraction of dE00 Between 0 and 1: 1.000000
Image File: roman16_16_lowkey_BW_rgb.tif
Fraction of dE00 Between 0 and 1: 1.000000
Image File: PDI_Target-DCP-NoSyn.tif
Fraction of dE00 Between 0 and 1: 0.996751
Fraction of dE00 Between 1 and 2: 0.001693
Fraction of dE00 Between 2 and 3: 0.000258
Fraction of dE00 Between 3 and 4: 0.000108
Fraction of dE00 Between 4 and 5: 0.000579
Fraction of dE00 Between 5 and 6: 0.000069
Fraction of dE00 Between 6 and 7: 0.000039
Fraction of dE00 Between 7 and 8: 0.000503
Image File: PDI_Target-DCP.tif
Fraction of dE00 Between 0 and 1: 0.981506
Fraction of dE00 Between 1 and 2: 0.004536
Fraction of dE00 Between 2 and 3: 0.002734
Fraction of dE00 Between 3 and 4: 0.001290
Fraction of dE00 Between 4 and 5: 0.001831
Fraction of dE00 Between 5 and 6: 0.001291
Fraction of dE00 Between 6 and 7: 0.001522
Fraction of dE00 Between 7 and 8: 0.002415
Fraction of dE00 Between 8 and 9: 0.001438
Fraction of dE00 Between 9 and 10: 0.001136
Fraction of dE00 Between 10 and 11: 0.000301