ISO/TS 20793:2019
(Main)Photography — Lenticular print for changing images — Measurements of image quality
Photography — Lenticular print for changing images — Measurements of image quality
This document specifies the measurement methods and specification of image quality of lenticular prints that are used for changing images. This document does not cover lenticular prints that are used for 3D images. NOTE Lenticular prints for 3D images can be measured with the same types of procedures. However, it needs more information, such as the dependence of the measurement distance, to evaluate the 3D performance. This document specifically describes measurement methods for cross-talk, viewing angle range, angular misalignment from the designed viewing angle and the uniformity of the image within the printing area of the lenticular print images. These are critical for the image quality of lenticular prints for changing images. This document is applicable to lenticular prints produced by printing technologies that include impact and non-impact printing. Examples of the former are off-set, gravure and flexography, while the examples of the latter are silver halide, inkjet, dye diffusion thermal transfer and electrophotography. The multiple laser images (MLI) and changeable laser images (CLI) process of using a laser to write through a lenticular screen at different angles to create multiple images is also used.
Photographie — Impression lenticulaire pour images changeantes — Mesurages de la qualité des images
General Information
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Standards Content (Sample)
TECHNICAL ISO/TS
SPECIFICATION 20793
First edition
2019-04
Photography — Lenticular print for
changing images — Measurements of
image quality
Photographie — Impression lenticulaire pour images changeantes —
Mesurages de la qualité des images
Reference number
ISO/TS 20793:2019(E)
©
ISO 2019
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ISO/TS 20793:2019(E)
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ii © ISO 2019 – All rights reserved
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ISO/TS 20793:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms . 1
3.2 Abbreviations . 2
4 Standard environmental conditions . 2
4.1 Temperature and humidity . 2
4.2 Ambient illumination conditions . 2
5 Measurement conditions . 2
5.1 General . 2
5.2 Geometry of measurements . 2
5.2.1 Standard conditions with hemispherical illumination . 2
5.2.2 Optional conditions with directional illumination . 3
5.3 Light source . 4
5.4 Light measuring device (LMD) . 4
5.5 Working standards and references. 5
6 Preparation of lenticular print samples . 6
6.1 Test pattern .
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