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Which gray scale chart to choose?

There are several gray scale charts available: 3,5,7,9,11,13 steps, linear/logarithmic, transparent/reflective, different sizes... So it seems to be difficult to choose the appropriate chart for your needs. But when following SOME RULES it gets much easier to find the right chart.

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Color temperature

One of the most important artificial light sources is a tungsten filament lamp. When heated to a certain temperature, which depends on the resistance of the filament and the applied voltage, it emits light. The color of this light is closely related to the filament’s temperature. Although a tungsten lamp is not a black-body or Planckian radiator, their emitted relative spectral power distributions (SPDs) are very identical.

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High quality test charts

Produced according to your needs

A test chart it needs to fulfill certain requirements depending on the application. These requirements are defined by the camera/scanner system, the typical use-cases for the camera, the size of your lab, and the purpose of the target itself.

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How to make your "golden master" of color

The color module of the iQ-Analyzer is very useful to check the color reproduction quality of an imaging device. So read the color information from the image or video data and compare this to the stored reference data. But you can go one step further and use the module to compare two cameras, different settings or the influence of different light sources..

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