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ITE Grayscale Chart I(Gamma = 0.45)

ITE Grayscale Chart I(Gamma = 0.45) Instructions Operating Manual ITE Grayscale Chart I(Gamma = 0.45) PDF
This ITE Grayscale Chart I(Gamma = 0.45) Instrument are Certified with
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The YE083 is designed for the evaluation of the halftone reproduction of an electronic camera. Two 11-graduated counter current gray scales are arranged on a gray background(D=0.62) . The gray scales being graduated logarithmically (gamma = 0.45).The output signal of an optimal gamma-corrected camera yields two 11-graduated counter current linear step signals. The contrast range of the gray scale is 40:1.

The values of the 11-graduated gray scale are as follows:

Step Density Reflectance in %
1 0.05 89
2 0.13 74
3 0.22 60
4 0.32 48
5 0.43 37
6 0.55 28
7 0.69 20
8 0.86 14
9 1.06 9
10 1.31 5
11 1.65 2

The density of the white field between the gray scale is D=0.05 (reflectance = 89%).

 

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FAQs About  Grayscale Charts

Samples should be cleaned, dried, and scratched-free to obtain consistent haze measurements.


Spectrophotometer, Colorimeter, Gloss meter, Haze Meters, Coating thickness meter, window tint meter, UV meter, Leeb hardness tester, Light booth, Color Test Chart, Ultrasonic thickness gauge. Threenh Technology company adheres to independent design, research and development, production and sales of various measuring instruments. 

Calibrating a colorimeter before testing is critical for accurate, reliable color data—counteracting instrument drift, environmental interference, and component wear to ensure measurements reflect true sample colors. It guarantees compliance with industry standards, eliminates costly rework from flawed data, maintains brand consistency across batches/locations, and ensures data comparability with clients or regulators.

Calibrating a colorimeter before use is primarily to ensure the accuracy of measurement data and compensate for errors caused by the aging of internal components (such as light sources and phototubes) or environmental changes.

Below are the specific reasons: 

  1. Compensation for Component Aging and Environmental Influences

  2. Compensation for Environmental Factors

  3. Standardization of Measurement Baselines

  4. Operational Specification Requirements

3nh colorimeters are designed for immediate measurement upon startup. However, calibration (via black-white correction) is mandatory for the first use, sudden environmental changes, or abnormal data to restore measurement accuracy.

Replace when the total hours exceed rated life, decrease in brightness, or the color temperature shifts beyond tolerance.


Since part of the light will pass through the light-transmitting materials, the colorimeter is not suitable for color measurement of such kinds of materials; however, when place a pure color material with uniform texture under the light-transmitting material, we can measure the color difference between the standard and the sample. 

Colorimeter vs Spectrophotometer for Textile QC 

For textile quality control, a spectrophotometer is always the better choice instead of a basic colorimeter.

Key Reasons

  1. Spectrophotometer captures full spectral data, handles dyed fabric, printed textiles, yarn, woven and knitted materials with complex color and texture.

  2. Supports SCI/SCE, metamerism test, fastness comparison and batch color consistency inspection.

  3. Higher accuracy and better inter-instrument agreement, perfect for factory mass production and customer color approval.

  4. Basic colorimeters only show simple color difference data, easily affected by fabric texture, rough surface and lighting, with poor stability for textiles.

3nh Recommended Models

  • TS7700 / TS8560: High-precision, ideal for textile lab QC, color matching and raw material incoming inspection.

  • NR60CP / NS800: Cost-effective option for daily production line routine color checking.


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