ISO 20793-2024 PDF

Full title and description

ISO 20793:2024 — Photography — Lenticular print for changing images — Measurements of image quality. This International Standard gives measurement methods and specification criteria used to assess the image quality of lenticular prints designed to produce changing/flip imagery (not the 3D lenticular application). It defines the key metrics, test arrangements and reporting formats needed for consistent evaluation of lenticular change-image products across printing technologies and production processes.

Abstract

This document specifies measurement methods and specification of image quality of lenticular prints that are used for changing images. It addresses measurement of crosstalk, viewing-angle range, angular misalignment from the designed viewing angle and image uniformity across the printed area. The standard applies to a wide range of printing technologies (impact and non‑impact) and notes that 3D lenticular prints require additional measurement information (e.g., distance dependence) for full 3D evaluation.

General information

• Status: Published
• Publication date: 3 May 2024
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 37.040.01 (Photography)
• Edition / version: Edition 1 (2024)
• Number of pages: 28

Catalog and publication metadata as recorded in the ISO catalogue and distribution listings.

Scope

ISO 20793:2024 applies to lenticular prints intended to produce changing images (flip/change sequences) and defines standardized measurement methods to quantify image-quality attributes that affect perceived performance. The scope covers methods to measure crosstalk between lenticules, the angular viewing range over which intended images are visible, angular misalignment relative to the designed viewing angles, and the spatial uniformity of the image across the printed area. It is applicable to lenticular products produced by both impact (e.g., offset, gravure, flexography) and non‑impact (e.g., silver halide, inkjet, dye diffusion thermal transfer, electrophotography) printing processes, and to certain laser‑write processes (MLI/CLI). The standard explicitly excludes a full treatment of lenticular 3D images (which need additional measurement information such as distance dependence).

Key topics and requirements

• Defined measurement procedures for crosstalk between adjacent lenticular image channels and acceptable reporting formats.
• Methods to determine viewing-angle range and angular response of change-image lenticular prints.
• Procedures for measuring angular misalignment (deviation from designed viewing angles) and criteria for acceptance.
• Tests for image uniformity across the printing area (spatial consistency, tonal and colour uniformity where applicable).
• Specification of test geometry, measurement distance, instrumentation recommendations and environmental/test conditions for reproducible results.
• Applicability and examples for multiple printing technologies (impact and non-impact) and for laser-based MLI/CLI processes.
• Reporting templates and minimum test-result information to support quality control and supplier/customer communication.

These topics reflect the measurable attributes that most strongly determine lenticular change-image performance and are the primary deliverables of the standard's testing procedures.

Typical use and users

Primary users include lenticular product designers, print manufacturers and converters, quality‑control and test laboratories, photographic and print technology researchers, proofing and inspection services, and organizations that specify or procure lenticular printed materials (marketing, packaging and display producers). The standard is used for incoming/outgoing quality checks, production troubleshooting, supplier specifications and comparative testing during product development.

Related standards

ISO 20793:2024 replaces ISO/TS 20793:2019 (technical specification) as the normative measurement reference for lenticular change‑image quality. It was developed within ISO/TC 42 (Photography) and is related to other ISO standards dealing with photographic/viewing conditions and graphic technology (for example, standards addressing viewing conditions and colour/print process control). For context, image‑viewing and colour/print process standards such as ISO 3664 (viewing conditions) and elements of the ISO 12647 series (process control for graphic printing) are commonly referenced alongside lenticular testing in production and QC workflows.

Keywords

lenticular print, changing images, flip images, crosstalk, viewing angle, angular misalignment, image uniformity, lenticule, measurement methods, print quality, ISO/TC 42

FAQ

Q: What is this standard?

A: ISO 20793:2024 is an International Standard that defines measurement methods and specification guidance to assess the image quality of lenticular prints used for changing (flip) images.

Q: What does it cover?

A: It covers test methods and reporting for crosstalk, viewing‑angle range, angular misalignment, and image uniformity for lenticular change‑image prints produced by common printing technologies; it does not provide a full treatment for 3D lenticular imaging (which requires additional distance‑dependent measurements).

Q: Who typically uses it?

A: Print manufacturers, converters, quality control and test labs, product designers, procurement/specification teams, and researchers in photographic and print technology use the standard for development, acceptance testing and production quality control.

Q: Is it current or superseded?

A: It is current (published 3 May 2024) and supersedes the earlier ISO/TS 20793:2019 technical specification.

Q: Is it part of a series?

A: It was prepared under ISO/TC 42 (Photography) and is part of the broader set of photography and graphic‑technology standards that address image reproduction, viewing conditions and print process control; practitioners often use ISO 20793 together with viewing‑conditions and print‑process standards such as ISO 3664 and elements of ISO 12647 as needed.

Q: What are the key keywords?

A: Lenticular, lenticule, flip image, changing images, crosstalk, viewing angle, angular misalignment, image uniformity, measurement, print quality, ISO 20793.