ISO/TS 19567-1:2016
Photography — Digital cameras — Texture reproduction measurements — Part 1: Frequency characteristics measurements using cyclic pattern
Photography — Digital cameras — Texture reproduction measurements — Part 1: Frequency characteristics measurements using cyclic pattern
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 20
- Дата публикации:
- 22 марта 2016 г.
- Издание:
- ISO TS 19567 edition 1 version 1
- ICS:
- 37.040.10
ISO/TS 19567-1:2016 specifies a protocol to measure the texture reproduction in the images captured and processed by digital cameras including cameras in other devices, e.g. in camera phones. ISO/TS 19567-1:2016 specifies protocols for the measurement of the texture reproduction using test charts with cyclic pattern. ISO/TS 19567-1:2016 excludes the acceptable range of value for texture reproduction.
Abstract
Overview
ISO/TS 19567-1:2016 - Photography - Digital cameras - Texture reproduction measurements - Part 1: Frequency characteristics measurements using cyclic pattern - defines a standardized protocol to measure how digital cameras reproduce texture (low-contrast fine details) in captured images. The Technical Specification focuses on frequency-domain measurement using cyclic test charts (multiburst and Siemens star) and presents results as spatial frequency response (SFR) curves. It applies to digital still cameras, including cameras embedded in other devices (e.g., camera phones). The document does not set acceptable pass/fail ranges for texture reproduction.
Key topics and requirements
- Measurement methods: Two primary methods are specified:
- Multiburst - discrete low-contrast sine waves, high precision along a single direction (based on IEC multiburst concepts).
- Siemens star - low-contrast sine-modulated star pattern, continuous frequency variation in all directions (based on ISO 12233).
- Test charts and arrangements: Use of reflective or transmissive cyclic pattern charts with diffused, non-specular illumination. Specific apparatus layouts are defined for each chart type.
- Environmental and lighting conditions:
- Temperature: 23 °C ± 3 °C recommended.
- Illuminant color temperature: 5 700 K ± 1 000 K.
- Recommended illuminance: 1 000–2 000 lx (reflective) or 57.3–115 cd/m² for transmissive (18% gray).
- Illumination non-uniformity
Технические детали
- Технический комитет
- ISO/TC 42 - Photography
- SKU
- ISO/TS 19567-1:2016
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