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Image Sensors Used to Inspect Text on Uneven Surfaces with Uneven Brightness

Case Number 421

last update: May 17, 2011

Taking uniform images of the uneven brightness caused by uneven surfaces enables the reliable inspection of text on glossy packaging.


High dynamic range processing taking images with uniform brightness. This enables stable inspections without the use of external light if used in combination with high-powered LED lighting and a polarization filter.

Benefit / Efficiency

There is no need for additional external light, and inspection results are stable.

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