To inspect thinking the variation of the good one, DefFinder®️

DefFinder® is a registered trademark of ViSCO Technologies Corporation. It is an appearance inspection software that has been used in the field and proud of achievements for more than ten years. Create a statistically correct image of good by registering multiple good models. Stable detection of scratches, dirt, foreign substances, and other appearance defects. Also available for the inspection with a variation in the product.

An inspection algorithm for registering the correct good.
By the production condition change, even the good item shows somewhat variation in the surface color, the cut surface conditions, and the molded surface conditions.　Deffinder ® is a software with an inspection algorithm that assumes such a variability.

1. Reduces variations in light and shade
The variability of the color condition of the surface appears as a variability of the image density.　By normalizing this, as close to the registered good as possible and extract only the defects.