[argyllcms] Re: Eye-One Scan Target 1.4 .cht and .Q60 files (was Re: Re: Hutchcolor targets)
- From: "Lars Tore Gustavsen" <lars.tore@xxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 13 Aug 2007 09:32:12 +0200
On 8/11/07, Ben Goren <> wrote:
> For those of y'all with one of these targets, you'll want to use
> the Eye-One with spotread to get the actual values of the target,
> and then substitute those values with the ones in the attached Q60
> file. Or, you could be lazy and just use mine.
>
> And here's a Q60 file I created by reading my copy of the target
> with my Eye-One Pro and spotread:
>
Hello again, and great work.
Since my eye-one photo Lt also included that scanner target, I tried
to use spotread at the A row. My values are a bit different than
yours, so I wonder if I am doing this correctly. I start spotread
without any option. I have tried with and without FWA compensation,
but my results is very close anyway.
Here is my measurements from the A row. I actually measured it a few
times, to check my self. This results here is just one of the tests.
XYZ values:
1 0.472151 0.558528 0.584101
2 10.066707 9.931185 31.645299
3 13.439039 7.064933 3.019236
4 31.507823 22.294571 4.691646
5 31.545718 32.718131 28.661074
6 13.630349 14.182819 12.713542
7 33.740423 24.194305 10.916629
8 27.110860 26.913949 25.736330
9 6.126109 6.452357 6.004307
10 6.214166 6.973799 7.131639
11 4.496772 3.647617 20.832280
12 6.533940 3.497601 12.397356
13 9.146201 7.008655 15.628759
14 7.827841 6.368251 8.428364
15 16.202781 10.692172 24.533610
16 2.101262 1.205462 9.645890
Compared to yours
1 0.465187 0.475773 0.468318
2 8.313055 8.544596 28.168858
3 12.755461 6.369471 1.844153
4 32.166257 22.124194 3.249633
5 34.647071 35.737695 29.749185
6 13.581818 14.020032 11.403882
7 34.765535 24.117747 9.789943
8 30.212991 29.228654 26.479227
9 7.745346 7.964418 6.911239
10 4.633998 5.295573 5.511951
11 3.682293 2.566225 17.312558
12 5.085633 2.538792 10.434175
13 7.756074 5.278887 13.950805
14 6.622767 4.890535 7.225588
15 15.604782 9.092155 23.769426
16 1.715927 0.850547 7.930870
The max difference is about DeltaE*ab at 10.3 on row 15 (if my awk
script is correct). So I guess the story is either I have used
sportread incorrectly, or this target really needs individual
measuring.
Regards
Lars Tore Gustavsen
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