[argyllcms] Re: Dispread white drift compensation problem

  • From: Vallo Kallaste <kalts@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sun, 21 Dec 2014 16:53:11 +0200

On Sat, Dec 20, 2014 at 02:24:43PM +1100, Graeme Gill <graeme@xxxxxxxxxxxxx> 
wrote:

> Vallo Kallaste wrote:
> 
> > Yes, that was my initial guess as well. Following archive contains 'dispread
> > -Iw -D 6' log along with .ti1 and .ti3 files. Setting
> > ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS=800 has effect, colprof reports peak 
> > error
> > around 4. 
> 
> Hi,
>       the measured delay for your display is very short (23 msec).
> What sort of display is it ?

Dell 3008WFP.
Here are two additional test runs by setting ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS
in 50ms steps from 200 to 800. The following testset, interspersed with white
patches, has measuring errors only in -Iw case. The stabilisation point seems
to be around 700ms, that is how the colverify reference is measured:
ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS=700 and without drift compensation. Needless
to say I've run this and also different tests more than once with same results.
Something in the -Iw behaviour is causing this. Setting large delay is only
bandaid because without drift compensation the measured delay seems to work.

Test script:
--------------------------------------------------------------------
./test.sh test-Iw "$(seq -s " " 200 50 800)"
./test.sh test-noIw "$(seq -s " " 200 50 800)"

#! /bin/bash -Cue

for ms in ${2}
do
        date="$(date +%Y-%m-%dT%H%M)step${ms}"
        export ARGYLL_MIN_DISPLAY_UPDATE_DELAY_MS=${ms}
        dispread -Yp -yl -v2 -c1 -Iw -X i1D3_Dell_3008WFP.ccss ${1}
        #dispread -Yp -yl -v2 -c1 -X i1D3_Dell_3008WFP.ccss ${1}
        mv ${1}.ti3 ${1}.${date}.ti3
        colverify -v2 ${1}.ti3.ref ${1}.${date}.ti3 2>&1 |tee ${1}.${date}.txt
done


Results:
--------------------------------------------------------------------
$ grep 'Total errors:' test-noIw.2014-12-21T*.txt
test-noIw.2014-12-21T1408step200.txt:  Total errors:     peak = 7.037054, avg = 
1.492856
test-noIw.2014-12-21T1411step250.txt:  Total errors:     peak = 6.707876, avg = 
1.522650
test-noIw.2014-12-21T1414step300.txt:  Total errors:     peak = 6.349113, avg = 
1.544500
test-noIw.2014-12-21T1417step350.txt:  Total errors:     peak = 6.630734, avg = 
1.564225
test-noIw.2014-12-21T1421step400.txt:  Total errors:     peak = 6.112620, avg = 
1.612387
test-noIw.2014-12-21T1424step450.txt:  Total errors:     peak = 6.943990, avg = 
1.666700
test-noIw.2014-12-21T1428step500.txt:  Total errors:     peak = 6.235714, avg = 
1.491712
test-noIw.2014-12-21T1432step550.txt:  Total errors:     peak = 6.392355, avg = 
1.416702
test-noIw.2014-12-21T1436step600.txt:  Total errors:     peak = 6.015822, avg = 
1.489346
test-noIw.2014-12-21T1440step650.txt:  Total errors:     peak = 5.627549, avg = 
1.519844
test-noIw.2014-12-21T1445step700.txt:  Total errors:     peak = 6.001815, avg = 
1.468294
test-noIw.2014-12-21T1450step750.txt:  Total errors:     peak = 7.244912, avg = 
1.774961
test-noIw.2014-12-21T1455step800.txt:  Total errors:     peak = 5.463481, avg = 
1.593869
$ grep 'Total errors:' test-Iw.2014-12-21T*.txt
test-Iw.2014-12-21T1501step200.txt:  Total errors:     peak = 13303.111169, avg 
= 54.828963
test-Iw.2014-12-21T1505step250.txt:  Total errors:     peak = 1404.592275, avg 
= 17.362389
test-Iw.2014-12-21T1508step300.txt:  Total errors:     peak = 687.033431, avg = 
5.307529
test-Iw.2014-12-21T1511step350.txt:  Total errors:     peak = 9.578346, avg = 
2.664425
test-Iw.2014-12-21T1515step400.txt:  Total errors:     peak = 9.292858, avg = 
2.918289
test-Iw.2014-12-21T1518step450.txt:  Total errors:     peak = 496.063493, avg = 
4.139868
test-Iw.2014-12-21T1522step500.txt:  Total errors:     peak = 1365.493849, avg 
= 9.714379
test-Iw.2014-12-21T1526step550.txt:  Total errors:     peak = 132261.618994, 
avg = 526.677736
test-Iw.2014-12-21T1530step600.txt:  Total errors:     peak = 1161005.745026, 
avg = 4834.284545
test-Iw.2014-12-21T1535step650.txt:  Total errors:     peak = 1621.333088, avg 
= 14.708973
test-Iw.2014-12-21T1539step700.txt:  Total errors:     peak = 8.212580, avg = 
2.040059
test-Iw.2014-12-21T1544step750.txt:  Total errors:     peak = 8.362986, avg = 
2.722833
test-Iw.2014-12-21T1550step800.txt:  Total errors:     peak = 7.027616, avg = 
2.168870


Testset:
--------------------------------------------------------------------
NUMBER_OF_SETS 270
BEGIN_DATA
1       100.000 100.000 100.000 95.1065 100.000 108.844
2       74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
3       100.000 100.000 100.000 95.1065 100.000 108.844
4       77.9034 0.00000 100.000 42.0993 20.1239 96.2174
5       100.000 100.000 100.000 95.1065 100.000 108.844
6       53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
7       100.000 100.000 100.000 95.1065 100.000 108.844
8       74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
9       100.000 100.000 100.000 95.1065 100.000 108.844
10      87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
11      100.000 100.000 100.000 95.1065 100.000 108.844
12      38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
13      100.000 100.000 100.000 95.1065 100.000 108.844
14      16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
15      100.000 100.000 100.000 95.1065 100.000 108.844
16      12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
17      100.000 100.000 100.000 95.1065 100.000 108.844
18      54.5972 77.5280 100.000 49.3747 53.4463 102.266
19      100.000 100.000 100.000 95.1065 100.000 108.844
20      74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
21      100.000 100.000 100.000 95.1065 100.000 108.844
22      77.9034 0.00000 100.000 42.0993 20.1239 96.2174
23      100.000 100.000 100.000 95.1065 100.000 108.844
24      53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
25      100.000 100.000 100.000 95.1065 100.000 108.844
26      74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
27      100.000 100.000 100.000 95.1065 100.000 108.844
28      87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
29      100.000 100.000 100.000 95.1065 100.000 108.844
30      38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
31      100.000 100.000 100.000 95.1065 100.000 108.844
32      16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
33      100.000 100.000 100.000 95.1065 100.000 108.844
34      12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
35      100.000 100.000 100.000 95.1065 100.000 108.844
36      54.5972 77.5280 100.000 49.3747 53.4463 102.266
37      100.000 100.000 100.000 95.1065 100.000 108.844
38      74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
39      100.000 100.000 100.000 95.1065 100.000 108.844
40      77.9034 0.00000 100.000 42.0993 20.1239 96.2174
41      100.000 100.000 100.000 95.1065 100.000 108.844
42      53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
43      100.000 100.000 100.000 95.1065 100.000 108.844
44      74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
45      100.000 100.000 100.000 95.1065 100.000 108.844
46      87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
47      100.000 100.000 100.000 95.1065 100.000 108.844
48      38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
49      100.000 100.000 100.000 95.1065 100.000 108.844
50      16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
51      100.000 100.000 100.000 95.1065 100.000 108.844
52      12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
53      100.000 100.000 100.000 95.1065 100.000 108.844
54      54.5972 77.5280 100.000 49.3747 53.4463 102.266
55      100.000 100.000 100.000 95.1065 100.000 108.844
56      74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
57      100.000 100.000 100.000 95.1065 100.000 108.844
58      77.9034 0.00000 100.000 42.0993 20.1239 96.2174
59      100.000 100.000 100.000 95.1065 100.000 108.844
60      53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
61      100.000 100.000 100.000 95.1065 100.000 108.844
62      74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
63      100.000 100.000 100.000 95.1065 100.000 108.844
64      87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
65      100.000 100.000 100.000 95.1065 100.000 108.844
66      38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
67      100.000 100.000 100.000 95.1065 100.000 108.844
68      16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
69      100.000 100.000 100.000 95.1065 100.000 108.844
70      12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
71      100.000 100.000 100.000 95.1065 100.000 108.844
72      54.5972 77.5280 100.000 49.3747 53.4463 102.266
73      100.000 100.000 100.000 95.1065 100.000 108.844
74      74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
75      100.000 100.000 100.000 95.1065 100.000 108.844
76      77.9034 0.00000 100.000 42.0993 20.1239 96.2174
77      100.000 100.000 100.000 95.1065 100.000 108.844
78      53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
79      100.000 100.000 100.000 95.1065 100.000 108.844
80      74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
81      100.000 100.000 100.000 95.1065 100.000 108.844
82      87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
83      100.000 100.000 100.000 95.1065 100.000 108.844
84      38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
85      100.000 100.000 100.000 95.1065 100.000 108.844
86      16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
87      100.000 100.000 100.000 95.1065 100.000 108.844
88      12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
89      100.000 100.000 100.000 95.1065 100.000 108.844
90      54.5972 77.5280 100.000 49.3747 53.4463 102.266
91      100.000 100.000 100.000 95.1065 100.000 108.844
92      74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
93      100.000 100.000 100.000 95.1065 100.000 108.844
94      77.9034 0.00000 100.000 42.0993 20.1239 96.2174
95      100.000 100.000 100.000 95.1065 100.000 108.844
96      53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
97      100.000 100.000 100.000 95.1065 100.000 108.844
98      74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
99      100.000 100.000 100.000 95.1065 100.000 108.844
100     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
101     100.000 100.000 100.000 95.1065 100.000 108.844
102     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
103     100.000 100.000 100.000 95.1065 100.000 108.844
104     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
105     100.000 100.000 100.000 95.1065 100.000 108.844
106     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
107     100.000 100.000 100.000 95.1065 100.000 108.844
108     54.5972 77.5280 100.000 49.3747 53.4463 102.266
109     100.000 100.000 100.000 95.1065 100.000 108.844
110     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
111     100.000 100.000 100.000 95.1065 100.000 108.844
112     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
113     100.000 100.000 100.000 95.1065 100.000 108.844
114     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
115     100.000 100.000 100.000 95.1065 100.000 108.844
116     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
117     100.000 100.000 100.000 95.1065 100.000 108.844
118     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
119     100.000 100.000 100.000 95.1065 100.000 108.844
120     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
121     100.000 100.000 100.000 95.1065 100.000 108.844
122     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
123     100.000 100.000 100.000 95.1065 100.000 108.844
124     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
125     100.000 100.000 100.000 95.1065 100.000 108.844
126     54.5972 77.5280 100.000 49.3747 53.4463 102.266
127     100.000 100.000 100.000 95.1065 100.000 108.844
128     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
129     100.000 100.000 100.000 95.1065 100.000 108.844
130     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
131     100.000 100.000 100.000 95.1065 100.000 108.844
132     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
133     100.000 100.000 100.000 95.1065 100.000 108.844
134     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
135     100.000 100.000 100.000 95.1065 100.000 108.844
136     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
137     100.000 100.000 100.000 95.1065 100.000 108.844
138     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
139     100.000 100.000 100.000 95.1065 100.000 108.844
140     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
141     100.000 100.000 100.000 95.1065 100.000 108.844
142     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
143     100.000 100.000 100.000 95.1065 100.000 108.844
144     54.5972 77.5280 100.000 49.3747 53.4463 102.266
145     100.000 100.000 100.000 95.1065 100.000 108.844
146     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
147     100.000 100.000 100.000 95.1065 100.000 108.844
148     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
149     100.000 100.000 100.000 95.1065 100.000 108.844
150     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
151     100.000 100.000 100.000 95.1065 100.000 108.844
152     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
153     100.000 100.000 100.000 95.1065 100.000 108.844
154     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
155     100.000 100.000 100.000 95.1065 100.000 108.844
156     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
157     100.000 100.000 100.000 95.1065 100.000 108.844
158     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
159     100.000 100.000 100.000 95.1065 100.000 108.844
160     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
161     100.000 100.000 100.000 95.1065 100.000 108.844
162     54.5972 77.5280 100.000 49.3747 53.4463 102.266
163     100.000 100.000 100.000 95.1065 100.000 108.844
164     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
165     100.000 100.000 100.000 95.1065 100.000 108.844
166     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
167     100.000 100.000 100.000 95.1065 100.000 108.844
168     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
169     100.000 100.000 100.000 95.1065 100.000 108.844
170     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
171     100.000 100.000 100.000 95.1065 100.000 108.844
172     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
173     100.000 100.000 100.000 95.1065 100.000 108.844
174     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
175     100.000 100.000 100.000 95.1065 100.000 108.844
176     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
177     100.000 100.000 100.000 95.1065 100.000 108.844
178     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
179     100.000 100.000 100.000 95.1065 100.000 108.844
180     54.5972 77.5280 100.000 49.3747 53.4463 102.266
181     100.000 100.000 100.000 95.1065 100.000 108.844
182     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
183     100.000 100.000 100.000 95.1065 100.000 108.844
184     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
185     100.000 100.000 100.000 95.1065 100.000 108.844
186     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
187     100.000 100.000 100.000 95.1065 100.000 108.844
188     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
189     100.000 100.000 100.000 95.1065 100.000 108.844
190     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
191     100.000 100.000 100.000 95.1065 100.000 108.844
192     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
193     100.000 100.000 100.000 95.1065 100.000 108.844
194     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
195     100.000 100.000 100.000 95.1065 100.000 108.844
196     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
197     100.000 100.000 100.000 95.1065 100.000 108.844
198     54.5972 77.5280 100.000 49.3747 53.4463 102.266
199     100.000 100.000 100.000 95.1065 100.000 108.844
200     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
201     100.000 100.000 100.000 95.1065 100.000 108.844
202     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
203     100.000 100.000 100.000 95.1065 100.000 108.844
204     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
205     100.000 100.000 100.000 95.1065 100.000 108.844
206     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
207     100.000 100.000 100.000 95.1065 100.000 108.844
208     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
209     100.000 100.000 100.000 95.1065 100.000 108.844
210     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
211     100.000 100.000 100.000 95.1065 100.000 108.844
212     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
213     100.000 100.000 100.000 95.1065 100.000 108.844
214     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
215     100.000 100.000 100.000 95.1065 100.000 108.844
216     54.5972 77.5280 100.000 49.3747 53.4463 102.266
217     100.000 100.000 100.000 95.1065 100.000 108.844
218     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
219     100.000 100.000 100.000 95.1065 100.000 108.844
220     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
221     100.000 100.000 100.000 95.1065 100.000 108.844
222     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
223     100.000 100.000 100.000 95.1065 100.000 108.844
224     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
225     100.000 100.000 100.000 95.1065 100.000 108.844
226     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
227     100.000 100.000 100.000 95.1065 100.000 108.844
228     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
229     100.000 100.000 100.000 95.1065 100.000 108.844
230     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
231     100.000 100.000 100.000 95.1065 100.000 108.844
232     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
233     100.000 100.000 100.000 95.1065 100.000 108.844
234     54.5972 77.5280 100.000 49.3747 53.4463 102.266
235     100.000 100.000 100.000 95.1065 100.000 108.844
236     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
237     100.000 100.000 100.000 95.1065 100.000 108.844
238     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
239     100.000 100.000 100.000 95.1065 100.000 108.844
240     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
241     100.000 100.000 100.000 95.1065 100.000 108.844
242     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
243     100.000 100.000 100.000 95.1065 100.000 108.844
244     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
245     100.000 100.000 100.000 95.1065 100.000 108.844
246     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
247     100.000 100.000 100.000 95.1065 100.000 108.844
248     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
249     100.000 100.000 100.000 95.1065 100.000 108.844
250     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
251     100.000 100.000 100.000 95.1065 100.000 108.844
252     54.5972 77.5280 100.000 49.3747 53.4463 102.266
253     100.000 100.000 100.000 95.1065 100.000 108.844
254     74.4926 10.8310 41.7710 25.0180 13.6797 15.8258
255     100.000 100.000 100.000 95.1065 100.000 108.844
256     77.9034 0.00000 100.000 42.0993 20.1239 96.2174
257     100.000 100.000 100.000 95.1065 100.000 108.844
258     53.6227 0.00000 79.1269 21.7000 10.4552 56.9312
259     100.000 100.000 100.000 95.1065 100.000 108.844
260     74.3930 58.1453 0.00000 32.4775 32.8530 5.49070
261     100.000 100.000 100.000 95.1065 100.000 108.844
262     87.3899 64.4799 12.7114 44.5642 43.0498 8.20505
263     100.000 100.000 100.000 95.1065 100.000 108.844
264     38.9539 68.7239 18.3274 21.8585 34.2927 8.96345
265     100.000 100.000 100.000 95.1065 100.000 108.844
266     16.4418 58.1390 58.0640 17.7641 24.6503 32.4536
267     100.000 100.000 100.000 95.1065 100.000 108.844
268     12.8306 62.4024 73.2310 22.7618 29.4460 51.7578
269     100.000 100.000 100.000 95.1065 100.000 108.844
270     54.5972 77.5280 100.000 49.3747 53.4463 102.266
END_DATA

-- 
Vallo

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