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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

OECF Test Chart (ISO 14524)

DTV Color Rendition Test Chart

Color Bar Test Chart

Color Rendition Chart (X-Rite ColorChecker)

ITE Grayscale Chart I(Gamma = 0.45)

11-Steps Gray Scale Test Chart

HDTV Gray Scale Test Chart

ITE Grayscale Chart II(Gamma = 1)

Gray Scale Test Chart(11 steps)

SFRplus Large LVT Film Chart

SFRplus Chart: Inkjet on Paper - 10:1 & 2:1 Contrast Ratio

SFRplus Chart: Inkjet on Paper - 4:1 Contrast Ratio

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

The LAB color space defines colors in a three-dimensional model: Lightness (L), red–green axis (a), and blue–yellow axis (b). It's a globally recognized standard supported by most modern color measuring devices. CIELAB is a standardized, device-independent system designed to map all visible colors that the human eye can perceive.

The LAB color space uses three values to define any color, each representing a specific dimension:


L (Lightness): Ranges from 0 to 100. It measures the brightness of the color, where 0 is pure black and 100 is pure white.
A (Red-Green Axis): Ranges from approximately -128 to +127. Positive values represent red tones, while negative values represent green tones.
B (Yellow-Blue Axis): Ranges from approximately -128 to +127. Positive values represent yellow tones, while negative values represent blue tones.


We provide professional training to customers along with user manuals for the proper operation and maintenance of haze meters. If you have any problems during use, you can contact our experts who will quickly help you solve the problem


Depending on model and location, delivery time is usually 2-4 weeks for standard models and 4-6 weeks for built- to-order ones. 


a. If this phenomenon occurred, it means the battery power is not enough. You need to charge the battery.

b. When charge the battery, please insert the battery to the instrument, and plug in the adapter to charge the battery. After 5 minutes, the instrument can be turned on.

c. If the instrument still cannot be turned on after charging 5 minutes, you can pull out the adapter and re-plug in to check it. Or repeat this operation.

d. If the instrument still cannot be turned on after charging 5 minutes, you can turn off the colorimeter and turn on it again to check it. Or repeat this operation.

e. If you have tried all the methods above but the colorimeter still cannot be turned on, please change the battery.

Powder paint gloss levels are classified as:

● Flat: 0–10 GU

● Satin: 11–40 GU

● Semi-gloss: 41–70 GU

● Gloss: 71–85 GU

● High Gloss: 86+ GU
 

These are measured at a 60° angle for standardization.


To determine haze, haze meters are used in multiple industries such as plastic, glass, film, coating, and displays. This ensures that all optical quality of the product is in the appropriate specification, including aesthetic compliance and meeting the intercontinental quality standards.


Further Test Charts Applications and Solutions

Guide to Metal Colorimeters: Principles, Applications, and Standards
Measure Color Differences of Foods
Automotive Paint Color Detection
Cover Materials Color Measurement Solutions
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Assure responding within 24 hours

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Need to contact us? Just send us an e-mail at service@3nh.com

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