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Get Best Image Quality with Color Test Charts

3NH Color Test Charts provide accurate color calibration and image consistency across devices. They are Ideal for cameras, printers, and scanners. These charts meet international standards, helping professionals achieve precise color reproduction in photography, printing, and display calibration workflows.

The Ultimate Standard for Precision Color Calibration in Every Industry

 The 3nh Color Test Chart is a professional color calibration and inspection tool developed by ThreeNH, designed to accurately verify the accuracy and stability of color measurement instruments or assist in data calibration for color management processes.

High-Precision Color Reproduction: Crafted with international standard color card technology, covering multiple standard color gamuts (such as Munsell and Pantone equivalent colors). Color patch values are precisely spectrally calibrated with errors below industry standards (e.g., ΔE≤1.0). 

Durable Material: Features a waterproof and scratch-resistant coating, suitable for long-term frequent use in laboratories, production lines, and other scenarios.

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Types of 3NH Test Charts Products

Automotive Test Chart

SFRplus Chart on Photographic Paper QI-SFR10-P-RM

Standard SFRplus Chart

ISO 12233 Digital still-camera resolution chart

ISO-15739 digital camera noise test chart

ISO-14524 digital camera contrast chart

ISO 12233: 2014 (eSFR)Photographic chart

ISO 12233 Enhanced digital camera resolution chart

ISO 12233:2014 Edge SFR(eSFR)Test chart

YE0670 Real Scene Test Chart

YE0688 Real Scene Test Chart

Image Quality Testing Solutions


As a global leader in image quality testing, we leverage our expertise in image quality testing, equipment, and knowledge to help companies across industries worldwide improve their imaging devices.

Standard camera testing typically covers multiple image quality metrics such as resolution, texture detail retention, noise, dynamic range, color accuracy, distortion, shading non-uniformity, and chromatic aberration. Camera systems often require comprehensive multi-dimensional evaluation.

Through the efforts of our R&D department and the introduction of high-precision production equipment, Threenh has gained the capability to customize various types of test charts. We can produce all kinds of transmission-type test charts (e.g., film charts) and reflection-type test charts according to clients’ specified drawings. Commonly used camera testing charts such as resolution charts, color bar charts, distortion test charts, grayscale charts, and dynamic range test charts can all be customized, significantly reducing costs for high-tech enterprises globally.

Sine Image - A Brand Trademark of 3nh Group

Sine Image's business scope includes:

  • R&D, production, and sales of camera/lens test charts and testing equipment;

  • Development of camera/lens testing software and image quality analysis software;

  • Provision of solutions for camera module focusing platforms, automatic inspection platforms, and complete machine testing;

  • Technical R&D in intelligent recognition, machine vision, and gratings.

Sine Image owns two core businesses:

  • S-imageTest: Image quality analysis software

  • ColorFilm: Dedicated to providing supporting product processing and solutions for global large/medium enterprises and institutions.


Sine Image Imaging Test Charts (Black & White + Color)


All test charts are fully customizable. We maintain complete product and customer archives, ensuring each chart undergoes rigorous testing exceeding industry standards before shipment, with guaranteed consistency across batches. As a professional Chinese company specializing in independent R&D and production of high-definition black/white and color test charts, Sine Image has introduced a full series of imported production and inspection equipment for image test charts.


Advantages of Sine Image Test Charts

  • Rapid Delivery: Customized test charts available within 1–3 days

  • Precision Craftsmanship: High-definition laser scanning technology

  • Premium Materials:

    • Transmission materials: Imported film

    • Glass: Optical-grade impurity-free diffuser glass

    • Reflection materials: Imported photo paper, water-resistant, wear-resistant, and fade-proof for 20+ years

  • Stringent Quality Control:

    • Line uniformity tested with precision optical instruments

    • OD (optical density) and color parameters measured via cut-edeg densitometers and color difference meters


Our Valued Clients

FAQs About  Test Charts

Zero calibration of a hazemeter is a critical pre-measurement procedure to ensure the instrument’s accuracy by resetting its baseline to "zero" when no haze or light attenuation is present.

  1. Align the hazemeter’s measurement window with air or a black background, ensuring no objects block the window.

  2. Press the hazemeter’s zero calibration button and wait for the instrument to complete automatic calibration. At this point, the instrument should display a zero haze value and a zero light transmittance value.

  3. Observe the instrument’s display to confirm the zero calibration result stabilizes near zero. If the zero calibration is inaccurate, repeat the above steps multiple times until the displayed haze and light transmittance values stabilize near zero.

Perform 0-degree calibration before testing, this eliminates inherent instrument drift, environmental interference, or residual signal errors, ensuring subsequent measurements of transparent/translucent samples (e.g., plastic films，pvc, glass, coating, displays and cosmetic packaging) are reliable. Correct for minor instrument deviations caused by long-term use, temperature changes, or power fluctuations.

A coating thickness gauge measures film layers by identifying shifts in magnetic flux, eddy currents, or ultrasonic echoes as they penetrate the coating. The gauge calculates thickness based on the magnitude of these signals. This universally accepted approach results in quick, reliable, and non-invasive measurements. 

SCI&SCE are two method in the color measurement. SCI means Specular Component Include,SCE means Specular Component Exclude.

Under the method of SCE, only test diffuse refection and exclude specular reflection. In that way, the test result is similar to object color was observed by human eyes.

Under the method SCI, both the diffuse refection and specular reflection will be included. In that way, the value about the color is more objective. It will not effect by the environment condition.

When we choose the instrument, those elements should be taking into consideration.


A digital coating thickness gauge is used to measure the thickness of dried paint. It measures coating thickness specification non-destructively, helping to maintain consistent quality and performance.


Many people might answer "with the human eye", but this is actually not comprehensive. The human eye cannot accurately distinguish the colors of similar objects. Furthermore, everyone's perception of color varies. Therefore, people have developed color measurement tools based on the CIE color system. 

Currently, there are two main types of commonly used colorimeters, as follows: 

Colorimeter - It is an ideal choice for quality control (QC) on production lines, used to detect color differences. 

Spectrophotometer - It is suitable for the development of color characteristics and color analysis in laboratories.

Who are we? Threenh Technology: 22-Year Professional Color Measurement Solution Provider

Threenh Technology is a Chinese professional manufacturer with 22 years of industry experience, specializing in the field of color measurement and surface gloss detection. Integrating research and development, design, production, marketing, and sales, the company takes technological innovation as its core and is committed to providing global customers with high-precision and intelligent testing instruments as well as professional solutions.


Further Test Charts Applications and Solutions

Plastic Product Color Detection
Advanced Color Management in the Textile Industry
Guide to Metal Colorimeters: Principles, Applications, and Standards
Agricultural Product Quality Control
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