AS ISO 12233:2023 identically adopts ISO 12233:2023, which specifies methods for measuring the resolution and the spatial frequency response (SFR) of electronic still-picture cameras. It is applicable to the measurement of both monochrome and colour cameras which output digital data or analogue video signals
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
4.1 Test chart illumination
4.2 Camera framing and lens focal length setting
4.3 Camera focusing
4.4 Camera settings
4.5 White balance
4.6 Luminance and colour measurements
4.7 Gamma correction
5 Visual resolution measurement
5.1 General
5.2 Test chart
5.2.1 General
5.2.2 Material
5.2.3 Size
5.2.4 Test patterns
5.2.5 Test pattern modulation
5.2.6 Positional tolerance
5.3 Rules of judgement for visual observation
5.3.1 Rules of judgement
5.3.2 An example of a correct visual judgement
6 Edge-based spatial frequency response (e-SFR)
6.1 General
6.2 Methodology
7 Sinewave-based spatial frequency response (s-SFR) measurement
8 Presentation of results
8.1 General
8.2 Resolution
8.2.1 General
8.2.2 Basic presentation
8.2.3 Representative presentation
8.3 Spatial frequency response (SFR)
8.3.1 General
8.3.2 Spatial frequency response
8.3.3 Report of resolution value derived from the s-SFR
Annex A
A.1 Features of the CIPA resolution chart
A.2 Tolerance of the CIPA resolution chart
A.3 Dimensional specification of the CIPA resolution chart
Annex B
B.1 Background and purpose
B.2 Downloading the software
B.3 Measurement procedure
B.4 The outline of the software processing
B.4.1 Main process
B.4.2 Black line detection
B.4.3 Image rotation process
Annex C
Annex D
Annex E
Annex F
Annex G
G.1 General
G.2 Choice of colour filters
G.3 Camera settings
Annex H
H.1 Conversions between commonly used units
H.2 Relation between SFR, sharpness, and acutance
H.2.1 Sampling efficiency rating (Es)
Annex I
I.1 General
I.2 The original test chart defined in ISO 12233:2000
I.3 Limiting resolution measurements in ISO 12233:2000
I.4 Spatial frequency response measurement in ISO 12233:2000 (high contrast edge SFR)
