ISO 17972-2:2016 グラフィックテクノロジー—カラーデータ交換フォーマット（CxF / X）—パート2：スキャナーターゲットデータ（CxF / X-2） | ページ 2

3.1 規約

Foreword

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The committee responsible for this document is ISO/TC 130, Graphic technology.

ISO 17972 consists of the following parts, under the general title Graphic technology — Colour data exchange format (CxF/X):

• Part 1: Relationship to CxF3 (CxF/X)
• Part 2: Scanner target data (CxF/X-2)
• Part 3: Output target data (CxF/X-3)
• Part 4: Spot colour characterisation data (CxF/X-4)

Introduction

ISO 17972 defines methods for the use of CxF3 to exchange measurement data and associated metadata within the graphic arts industry and for the exchange of these files between graphic arts users. It is a multi-part document where each part is intended to respond to different workflow requirements. The goal throughout the various parts of ISO 17972 has been to maintain the degree of flexibility required while minimizing the uncertainty of the data exchanged.

ISO 17972-1 defines the use of the publicly available Colour Exchange Format, version 3 (CxF3), for prepress data exchange and verification.

This part of ISO 17972 covers the use of CxF when exchanging data from ISO 12641 . This part of ISO 17972 is not designed to replace ISO 12641, but to define an updated, verifiable, method of data exchange using CxF, acting as a supplement to ISO 12641:1997, 4.6 and 4.7. X-Rite Inc., the original creator of the CxF file format, claims no intellectual property rights to the materials used in this part of ISO 17972.

Scanner targets are one of the earliest defined data exchange use cases in the graphic arts and continue to be used for calibration and characterization of scanners and other devices. Traditionally, data has been provided in ACSII format using a keyword file. The direct mapping of existing data to the updated CxF/X-2 encoding was one of the primary concerns in writing this part of ISO 17972.

The following files are part of this part of ISO 17972, and are included as electronic inserts:

• CxF3_Core.xsd;
• CxF3_Schema_Diagram.pdf;
• Scannertarget CxF/X-2.cxf;
• Scannertarget.txt.

1 Scope

This part of ISO 17972 defines an exchange format for target input values, colour and process control data relating to scanner targets (and the associated metadata necessary for its proper interpretation) in electronic form. This part of ISO 17972 includes the use of a CustomResource element within the CxF framework to define a minimum set of data for exchange and identify the data as being part of ISO 12641.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply

3.2 Definitions

Bibliography