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spectral response of a digital camera system

  • spectral response of a digital camera system
  • spectral response of a digital camera system
Model No.︰camSPECS
Brand Name︰Image Engineering
Country of Origin︰Germany
Unit Price︰-
Minimum Order︰1 pc
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Product Description
camSPECS is a fast and affordable solution to measure the spectral response of a digital camera system (access to RAW image ! les required). It contains the hardware and software tools, which are necessary to perform the measurement.
The light source is a modified slide projector with a stabilized power supply, a special filtering of the light source and a customized optical system. A set of 39 narrow-band interference filters is used to generate the narrow-band light. The slide transportation system of the projector is used to move the filters one after another in front of the lamp. Beside the interference fillters are neutral density filters, which are used as a brightness reference to correct for exposure variations. Exposure data is used to correct for different exposure levels. So it is possible to perform the measurement even with the camera set to automatic exposure control.

The evaluation software makes the measurement fast and convenient. It provides a batch conversion of common RAW files by controlling 'dcraw' and performs a dark frame subtraction. To measure the spectral response the software reads the pixel values from the pictures of the interference ! lters and the data processes. Additional features are the generation of a 3x3 color correction matrix and the assessment of the measurement by comparing real camera and predicted RGB values.
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