[argyllcms] Re: Question regarding gamut mapping for photographic images
- From: "Alastair M. Robinson" <blackfive@xxxxxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 30 Aug 2005 18:29:53 +0100
Hi Graeme,
Graeme Gill wrote:
No, I don't think so, I think it is pretty similar. I get the impression
that this behaviour is not typical, and may be a result of the particular
device characteristic, but haven't run any tests to confirm this
impression.
I've seen similar behaviour on a few occasions - the B2A generation will
get to a certain percentage, then stall for ages, before finally completing.
I've got a small (126-patch) testcase, which is attached.
The command I used is:
profile -v -c3 -d0 -S sRGB\ Color\ Space\ Profile.icm R300_7DayShop_20050829
The B2A generation gets to 37% then stalls. After what I'm guessing is
5-10 minutes, it finally moves on to 38% and zips through the rest.
What's interesting is that if you remove the last sample (and reduce the
sample count to match), then run the profile command again, it zips
straight through.
The difference between the two profiles once they're generated is minimal.
All the best,
--
Alastair M. Robinson
CTI3
DESCRIPTOR Argyll Calibration Target chart information 3
ORIGINATOR Argyll printread
CREATED Sat Aug 06 15:15:34 2005
KEYWORD DEVICE_CLASS
DEVICE_CLASS OUTPUT
KEYWORD MULTI_DIM_STEPS
MULTI_DIM_STEPS 2
KEYWORD COLOR_REP
COLOR_REP RGB_XYZ
NUMBER_OF_FIELDS 7
BEGIN_DATA_FORMAT
SAMPLE_ID RGB_R RGB_G RGB_B XYZ_X XYZ_Y XYZ_Z
END_DATA_FORMAT
NUMBER_OF_SETS 126
BEGIN_DATA
1 0 0 0 0.423718 0.413443 0.488655
2 100 49.933 13.295 46.3871 41.9245 5.36026
3 66.022 83.481 59.554 47.4137 55.7781 52.2377
4 70.586 51.024 48.7 40.1991 39.497 33.9375
5 100 0 0 26.4806 13.7958 4.21308
6 0 100 0 2.42194 6.66857 4.17734
7 100 100 0 58.6113 63.2873 2.76434
8 0 0 100 3.46311 1.98368 13.6133
9 100 0 100 27.4031 12.3478 16.6081
10 0 100 100 9.90403 12.0819 50.778
11 100 100 100 75.7485 79.3286 91.1022
12 52.101 52.964 49.324 31.9241 34.3506 37.4057
13 6.236 34.717 50.607 4.85043 5.58864 22.0967
14 41.382 9.4563 69.24 12.0358 6.27884 19.7205
15 28.998 50.355 92.55 19.83 20.5569 58.9925
16 52.924 24.71 9.6916 17.7524 13.7664 3.37155
17 26.086 91.735 52.327 17.3995 28.5806 37.6482
18 94.58 26.849 51.21 38.4781 26.1463 23.8697
19 49.123 71.118 9.1691 25.7363 34.6062 5.07129
20 81.443 51.939 100 51.9915 44.7535 72.36
21 89.092 82.015 51.712 59.0234 64.2706 44.8112
22 0 0 0 0.409407 0.394945 0.477903
23 48.113 92.849 89.585 41.4595 50.4295 78.5238
24 4.647 48.074 0.32706 2.39504 5.32883 4.17725
25 34.038 0 39.479 6.39751 3.52109 7.47489
26 2.3359 68.384 80.036 8.54971 10.3891 42.9354
27 63.076 99.854 39.221 43.0348 57.2987 29.5305
28 82.592 2.1757 25.718 21.792 11.0742 3.83357
29 31.759 68.755 36.214 17.0265 26.7762 21.6634
30 9.6568 8.5164 68.711 3.59967 1.94931 15.3312
31 51.056 31.391 91.126 26.7662 19.9068 48.9167
32 0.18603 32.278 83.575 5.71419 4.48994 29.3987
33 0 0 0 0.407682 0.385489 0.485206
34 4.0029 86.827 33.915 4.49616 11.0088 15.5655
35 64.443 1.426 72.829 17.5776 8.3707 13.8626
36 30.15 32.092 61.947 13.7328 12.3851 33.9389
37 90.004 65.715 68.813 57.7079 55.9452 58.6756
38 23.186 99.847 24.44 11.2247 24.138 12.4122
39 36.113 67.233 71.905 26.8051 32.1111 58.5298
40 71.134 36.399 33.511 32.478 28.0835 15.9261
41 30.306 23.056 22.319 7.65819 7.26681 6.69443
42 80.746 71.444 42.065 49.7786 54.231 31.3596
43 66.032 7.264 95.178 21.5945 10.4245 24.326
44 96.444 34.629 92.408 48.4597 34.1489 54.8139
45 0.57701 9.6284 37.936 2.35105 1.81618 9.42809
46 71.486 28.375 67.28 33.9614 23.7528 37.9103
47 83.622 73.77 0 45.1975 47.4455 2.78742
48 50.228 43.798 21.966 23.4449 25.3289 9.8195
49 24.459 89.282 85.43 21.4546 28.9407 65.0351
50 86.217 27.065 11.857 31.9105 22.6467 3.47705
51 32.017 7.3053 3.3407 5.10739 3.63257 2.94531
52 100 70.093 83.154 65.0469 61.9537 71.1247
53 20.466 78.453 7.5808 7.41587 16.5485 4.22713
54 48.802 75.016 33.72 29.7175 40.5231 21.7043
55 4.1764 93.554 66.867 8.58551 13.6242 39.0148
56 56.801 60.977 90.605 40.9178 41.6839 71.5141
57 33.658 7.3399 91.34 9.26049 4.4163 21.6064
58 3.4328 63.923 96.172 9.67325 10.8946 48.6791
59 89.054 99.278 35.79 58.2683 69.1004 27.9177
60 65.738 94.936 11.689 39.9945 52.15 6.67667
61 94.539 19.792 23.503 32.6958 21.0083 6.48609
62 52.929 17.897 48.151 19.3766 12.3665 18.2763
63 88.861 94.968 67.497 64.4577 71.3477 63.6583
64 67.606 6.6232 3.2712 18.0101 10.1856 3.01619
65 67.066 48.304 0 30.3005 29.1971 2.94672
66 76.603 83.649 92.759 59.3299 62.5895 82.4925
67 18.137 52.855 68.019 12.4564 15.5557 44.6625
68 89.616 0.56394 45.613 23.8077 11.6274 7.05659
69 32.963 38.65 45.517 15.7201 16.6972 27.8061
70 75.668 23.179 95.769 34.6014 21.901 44.541
71 29.691 45.363 0 9.1336 12.8938 3.09879
72 100 74.02 18.79 54.8197 57.8638 10.7626
73 94.839 51.851 39.77 49.3818 46.1061 25.8512
74 27.588 79.317 97.366 23.5925 29.6713 71.0098
75 17.103 34.784 100 11.0161 9.50305 45.3511
76 12.928 26.458 14.176 2.31163 3.75776 3.78586
77 50.499 100 71.216 40.9171 53.4316 63.2971
78 55.468 9.6854 22.347 15.113 8.91575 4.56035
79 53.73 37.796 72.47 30.2297 25.5425 47.1187
80 19.577 12.836 47.685 4.68761 3.17382 14.228
81 35.761 98.193 11.579 18.9191 32.6958 6.16426
82 91.665 5.2709 74.438 27.9961 13.466 18.4765
83 73.296 62.794 19.086 40.092 44.3151 9.65661
84 12.912 18.641 85.384 6.38314 3.95108 27.771
85 6.6747 44.532 34.139 4.11323 7.42716 15.4833
86 32.448 74.133 60.224 22.9881 31.0624 48.1231
87 6.45 71.719 17.047 3.36406 9.63194 7.07596
88 0 0 0 0.404531 0.381533 0.501985
89 17.662 6.2798 17.429 1.55262 1.19081 2.10293
90 76.177 94.408 91.282 61.1821 67.2942 84.0658
91 65.765 67.892 72.272 47.3866 49.6002 65.1017
92 67.677 10.204 47.319 21.6274 11.7923 12.6014
93 8.3695 63.825 52.495 7.52717 12.3927 30.9725
94 82.799 89.331 22.116 50.8951 60.5348 13.8802
95 81.747 41.569 81.151 46.6643 37.4248 56.6488
96 94.1 38.356 68.596 47.5878 36.9981 44.5875
97 49.542 86.044 40.356 33.2039 46.1194 29.7464
98 23.786 37.832 81.016 13.1018 12.5341 44.9475
99 28.561 58.373 20.853 11.8141 19.9715 9.91435
100 4.8 6.3 5.8 0.643106 0.669367 0.905232
101 9.6 9.6 9.6 0.820259 0.830414 1.12895
102 14.4 16.4 14.4 1.75772 1.98959 2.39891
103 21.7 19.2 22.2 4.49074 4.43279 6.05698
104 27 26.5 24 7.43995 7.87515 8.42184
105 28.8 28.8 30.8 9.50999 9.79637 13.6597
106 37.1 33.6 33.6 16.0094 16.2208 18.1862
107 38.4 40.9 40.4 19.3442 20.7382 25.7228
108 43.2 43.2 43.2 23.7665 24.7814 29.461
109 50 48 50.5 29.91 30.5824 38.6288
110 54.8 53.8 52.8 34.1878 36.0357 42.4248
111 57.6 57.6 60.6 38.427 40.0105 51.6091
112 64.4 62.4 62.4 43.7232 45.3772 54.6425
113 67.2 69.7 70.2 48.758 51.0424 64.0291
114 72 72 72 52.3918 54.4418 66.6438
115 78.8 76.8 78.3 58.0785 59.8248 72.7866
116 83.6 84.1 81.6 62.799 65.6499 76.7844
117 86.4 86.4 89.9 66.82 69.4521 84.1478
118 94.2 91.2 91.2 70.1199 72.7493 84.1719
119 96 96.7 96.7 73.0126 76.6777 88.8948
120 80 60 55 49.3972 49.3759 44.0712
121 71 40 38 34.9169 31.5199 21.415
122 95 82 78 66.462 67.8653 71.7388
123 84 60 59 52.0077 50.6705 48.3864
124 74 45 50 40.5622 37.0581 34.2253
125 95 82 81 67.1894 68.3194 74.5995
126 84 61 72 55.3172 52.5956 61.6083
END_DATA
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