ISO/TS 20498-3:2020 PDF

Traditional Chinese medicine — Computerized tongue image analysis system — Part 3: Colour chart

First page of standard ISO/TS 20498-3:2020

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Title (English):

ISO/TS 20498-3:2020

Traditional Chinese medicine — Computerized tongue image analysis system — Part 3: Colour chart

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 9
Publication date:: April 17, 2020
Edition:: ISO TS 20498 edition 1 version 1
ICS:: 11.040.99

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Description (English):

This document specifies the colour character and appearance of the colour chart used in a computerized tongue image analysis system (CTIS). This document excludes diagnostic or clinical comparison to the colour chart.

Technical details

Technical committee: ISO/TC 249 - Traditional Chinese medicine
SKU: ISO/TS 20498-3:2020

Abstract

Overview

ISO/TS 20498-3:2020 - Traditional Chinese medicine - Computerized tongue image analysis system - Part 3: Colour chart specifies the colour characteristics and visual appearance of the 24‑patch reference chart used to evaluate colour reproduction in a Computerized Tongue Image Analysis System (CTIS). The technical specification defines physical, colourimetric and printing guidance for a standard colour chart used for device calibration and quality control. It explicitly excludes diagnostic or clinical comparisons to tongue colour.

Key topics and technical requirements

Colour chart composition: 24 single‑colour patches (primary colours, greys, black/white, and 12 tongue shades). Two variants: with or without registration mark.
Colourimetric accuracy: CIE Lab* coordinates provided for each patch at CIE illuminants D65 and D50. Measured colour difference requirement: **ΔE*ab

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Colour chart composition: 24 single‑colour patches (primary colours, greys, black/white, and 12 tongue shades). Two variants: with or without registration mark.
Colourimetric accuracy: CIE Lab* coordinates provided for each patch at CIE illuminants D65 and D50. Measured colour difference requirement: **ΔE*ab

ISO/TS 20498-3:2020 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

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