SIST ISO 12641-2:2020 PDF
Graphic technology - Prepress digital data exchange - Part 2: Advanced colour targets for input scanner calibration
Graphic technology - Prepress digital data exchange - Part 2: Advanced colour targets for input scanner calibration
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 23
- Дата публикации:
- 7 февраля 2020 г.
- ICS:
- 35.240.30
- Технический комитет:
- GRT - Graphical technology
This document defines a framework for advanced reflective and transmissive layouts and colorimetric values of targets for use in the calibration and characterization of image capturing devices. This document defines a framework for target creation and data reporting. This framework can be used for both ISO defined and custom targets for both reflective and transmissive use. Self-emissive targets are not covered by this document.
Abstract
Overview
ISO 12641-2:2019 - Graphic technology - Prepress digital data exchange - Part 2: Advanced colour targets for input scanner calibration defines a framework for creating, measuring and reporting reflective and transmissive advanced targets used to calibrate and characterize image-capturing devices. It complements ISO 12641-1 by addressing modern requirements for higher colour fidelity (especially darker, saturated and pastel patches) and mandates modern data-exchange formats (CxF/X-2) for target metadata and measurements.
Key topics and technical requirements
- Scope: Framework for advanced target layouts and colorimetric values for scanners, digital cameras and other input devices (self-emissive targets not covered unless simulated).
- Colorimetry basis: Measurements referenced to D50 illuminant and the CIE 1931 2° Standard Observer; colorimetric computation in accordance with ISO 13655.
- Target design & layout:
- Main body (sampled colour area) + identification section; rectangular planar shapes for x–y scanners.
- Minimum patch count: greater than 288 patches.
- Minimum patch size: 2 mm × 2 mm.
- Non-patch areas must be neutral (max CIELAB C = 3.5*, lightness ~50, with ∆E*
Технические детали
- SKU
- SIST ISO 12641-2:2020
Похожие стандарты
Стандарты, упомянутые в описании