810A & 810B Appearance Measurement Systems

Models 810A and 810B Appearance Measurement Systems
  • Measures brightness of illuminated samples
  • Measures reflectance of surfaces
  • Perform statistical surface analyses
  • Allows user to define up to 256 individual regions of interest

Measure Brightness & Reflectance

TRICOR's Appearance Measurement Systems measure the brightness of illuminated samples and the reflectance of surfaces. Each system's chamber offers a controlled environment for a calibrated video camera and lighting, which allows measurement data to be obtained under user-specified conditions. Presently being used successfully to quantify haze and micro pitting on various products, the system's are easily customized to measure specific appearance characteristics of countless products.

The 810A and 810B generates a 640 x 480 pixel image with a digitized 256 gray scale. They use TRICOR's Eyeppearance® software, a Windows™ XP or later compatible PC-based software system, to provide analysis tools used to establish photometric levels for an image.

A user-friendly Windows™ interface offers many menu options for analyzing the acquired gray scale image; however, the real potential of Eyeppearance® is realized when a calibration transform file is loaded for the image. The calibration transform translates the relative gray levels into absolute radiometric levels. Pixel radiance levels and histogram distributions are given in photopic units.

Menu options, such as the Enhance option, provide a close coupling of the image data and the histogram distribution. The image is highlighted in red for a given section of the histogram. The user can use the mouse to quickly change the highlighted radiance levels in bandwidth and position on the histogram distribution. Quantitative values associated with the highlighted area are then displayed on the PC screen.

Another powerful feature of Eyeppearance® is its ability to define up to 256 regions of interest. Each region of interest is an irregularly shaped region as outlined by the user using the mouse. From this region an active subset can be selected, which establishes a new histogram distribution and restricts some of the menu options to function only upon this active region.

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