This article is for V2 and V1 3D scanners.
High Contrast scanning is a method for capturing the best data possible when scanning objects with more than one color, particularly contrasting colors, like black and white. It allows for improved laser detection by tuning two different exposures, one for each contrasting color. High contrast scanning can only be selected while using Regular scanning.
High contrast scanning can improve your scan coverage if your object has colors from both sides of the color wheel, grouped in these categories:
1. Blue, purple, Dark Green, Black
2. Yellow, Orange, Red, Grey White (and pastel colors)
Bright and Dark Exposures Change Laser Detection
is blown-out and messy on the white ones.
High Contrast Scanning allows you to select both a bright and a dark exposure to capture light and dark object areas. MFStudio automatically blends the best 3D points from each exposure to get a more complete capture.
To set a two exposures, first adjust the top Geometry Settings slider to capture clean laser lines on the light areas of the object.
Then click the High-Contrast checkbox in the Geometry Settings toolbox to turn on High Contrast Scanning. This will enable the bottom Geometry Settings slider. Adjust the bottom slider until the dark areas of the model fill in with a clean laser line.
Changing exposures may take time to reflect in the camera feed, so you may need to wait a moment to see the results. When you have selected your exposures, run the scan and MFStudio will use both to capture the object. High Contrast Scanning increases the time to complete the scan.
Here you can see the two laser lines showing clearly on both colors.
This is a good balance of the two Geometry Setting camera exposures.