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BS IEC 62977-3-7:2022

BS IEC 62977-3-7:2022

$189.07

Electronic displays – Evaluation of optical performance. Tone characteristics

Published By Publication Date Number of Pages
BSI 2022 46
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 CONTENTS
8 FOREWORD
10 INTRODUCTION
Figures
Figure 1 – Hue saturation lightness (HSL) colour model
11 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
13 3.2 Abbreviated terms
4 Standard measuring equipment
4.1 Video signal generator
14 4.2 Measuring equipment and conditions
4.3 Test equipment setup
Figure 2 – Measuring layout for non-close-up measurement
Figure 3 – Measuring layout for close-up type LMD
15 5 Standard measuring conditions
5.1 Standard measuring environmental conditions
5.2 Standard measuring darkroom conditions
Figure 4 – Setup for viewing directional measurements
16 5.3 Adjustment of display
5.4 Starting conditions of measurement
5.5 Standard test pattern
5.5.1 General
17 5.5.2 Test pattern for grey and colour tone measurement
Figure 5 – RGB input ranges for 7 tones and 6 colour saturations
18 Figure 6 – Multi-colour pattern for grey tone measurement
Tables
Table 1 – RGB input level for 11 steps and 17 steps
19 Figure 7 – Multi-colour pattern for colour tone measurement (example for red tone)
Figure 8 – Equivalent pattern for APL calculation of multi-colour pattern(example for grey tone)
Table 2 – RGB input composition for grey tone and colour tone
20 5.5.3 Test pattern for colour saturation tone measurement
6 Measurements and evaluation of tone characteristics
6.1 EOTF and display gamma for grey and colour tone
6.1.1 Measured data
Figure 9 – Multi-colour pattern for colour saturation tone measurement(example for red saturation)
Table 3 – RGB input composition for colour saturation tone
21 6.1.2 Measuring method
Table 4 – Selected measured data for display gamma from the 602-point measurement
22 6.1.3 Average gamma calculation
23 Table 5 – Example of average gamma calculation
24 6.1.4 Log-log gamma calculation
Figure 10 – Example of a measured EOTF compared with ideal power law curves
25 Figure 11 – Example of linear regression formula and plot for log-log gamma
Table 6 – Example of log-log gamma calculation
26 6.1.5 Grey scale tracking accuracy
6.1.6 Directional EOTF
27 6.2 Colour saturation tone accuracy
6.2.1 Measured data
6.2.2 Measuring method
Table 7 – Selected measured data for colour saturation tonefunction from the 602-point measurement
28 6.2.3 Evaluation of colour saturation tone accuracy
29 Figure 12 – Example of colour saturation tone evaluation
Table 8 – Example of colour saturation tone evaluation (cyan saturation)
30 6.3 Tone additivity function
31 6.4 Functional tone quantization
6.4.1 Measuring method
Figure 13 – Examples of tone additivity functions for non-additive displays with(solid line) and without (dashed line) tone clipping
32 6.4.2 Evaluation of functional tone quantization
Figure 14 – Minimum luminance difference between neighbouring inputs
33 Table 9 – Example of bit depth evaluation
34 7 Reporting
7.1 Required reporting
Figure 15 – Graphic result for the bit depth evaluation in Table 9
35 7.2 Measurement results
36 Annex A (informative)Interlevel gamma
A.1 General
37 A.2 Interlevel gamma calculation
Figure A.1 – Example of EOTF variation by enhancement processing
38 Table A.1 – Example of Interlevel gamma calculation
39 Figure A.2 – Example of interlevel gamma graph
40 Bibliography

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BS IEC 62977-3-7:2022
$189.07