==== Test Chart Selection Guide====
Test charts are standardized, reproducible tools essential for image q... and proper chart use.
**1. Overview**\\
**Test charts** are standardized media used to quantitatively e... { :en:yanding:image_quality_evaluation:tools:test_charts:testchart.png? |}}
In industrial applications, test charts are critical for both product quality control and
nes for the Use, Maintenance, and Storage of Test Charts ====
Test charts are indispensable reference tools in image quality evaluation, and their integrity direc... . Improper use and storage environments can cause charts to fade, scratch, or deform, thereby rendering th... e Guidelines**\\
**(I) Usage Environment**
Test charts should be placed in a clean and tidy location, aw
t sources to capture dedicated dynamic range test charts. After analysis by image quality analysis softwar... the imaging system.
**Common Dynamic Range Test Charts:**\\
**Transmissive Test Charts:**\\
Transmissive 36-step grayscale test chart (up to 150dB), transmissi... djustable light input)]] ^
**Unlike traditional charts, a polarizer is added to the center of the chart,
==== Test Tools User Guide ====
**Test Charts**\\
* [[en:yanding:image_quality_evaluation:tools:test_charts:chart_selection_guide|How to Choose the Right Tes... [[en:yanding:image_quality_evaluation:tools:test_charts:material_selection_guide|Test Chart Material Sele... [[en:yanding:image_quality_evaluation:tools:test_charts:usage_maintenance_storage_guide|Test Chart Usage,
=== Test Chart Material Selection Guide ====
Test charts are core tools in fields such as optical testing ... flective Test Chart Materials**\\
Reflective test charts achieve imaging tests by reflecting external ligh... ion costs and complex processing, making the test charts expensive; strong rigidity and heavy weight, maki... issive Test Chart Materials**\\
Transmissive test charts achieve imaging tests by allowing light to pass t
sion under all illuminants.
**III. Standard Test Charts**\\
Color reproduction testing requires standardized color charts whose spectral reflectance of each patch is known... 980 nm.
For larger test spaces or oversized test charts, the Yanding LS‑CCXL‑2S06‑IR floor-standing LED l
surement of resolution. Low-contrast Siemens star charts and dead leaves charts can be used for testing. However, since the dead leaves chart more closely resembl...
**Laboratory Test Environment Setup:**
1. Test charts: **B&W Dead Leaves Chart IMC064 / Color Dead Leav
supports automatic distortion analysis for **dot charts** and **checkerboard charts**.
**Test Charts Supported by the Distortion Module**\\
| Dot | Checkerboard | Concentric Test Car
he analysis of multi-specification grayscale test charts (both transmissive and reflective), such as 12-patch, 20-patch, and 36-patch charts. It also allows you to invoke the Single SNR func... gnal-to-noise ratio, and white balance.\\
**Test Charts Supported by the Grayscale Module**\\
(Click on
a diffuse reflectance ρ of approximately 18%;\\
- Charts that are aged or excessively exposed to sunlight/... t and automatic switching, supports storage of 10 charts, and accommodates a maximum size of 1600*1000mm.
像质量评价:标准化测试:mtf3.png?380|}}]]
**Recommended Test Charts:**\\
[[https://yanding.com/product/detail?id=1616... 像质量评价:标准化测试:36阶图卡.png?400|}}]]
Unlike traditional charts, this chart specially adds a polarizer at the cen
t boxes at the rear, combined with four grayscale charts of different densities, and setting relevant para... p:**\\
In a dark environment, insert four 35-step charts into the slots of the transmissive light boxes (t
eformation and recognition failure of traditional charts under wide-angle / fisheye lenses. |Sparse sampl... age, calculated according to ISO 17850.\\
**Data Charts:**
(1) Optical and SMIA TV Distortion Curves
{{ y
, it is necessary to photograph professional test charts in a standard image quality laboratory and obtain... signal-to-noise ratio, color coordinate analysis charts, etc. PDF, TXT, and Excel reports can be saved to
chart_selection_guide @en:yanding:image_quality_evaluation:tools:test_charts
