True color imaging technologies
White balance
A scan of a white template over a defined distance is performed to produce a 2D image. The software calculates a reference curve to correct for variations in brightness. The resulting lookup table is stored in the flash memory of the camera.
More information can be found here.
![Shading Correction](/images/1592560614079_880x.webp)
Before White Balance
RGB raw signal without white balance
![White balance](/images/1593013782707_880x.webp)
Before White Balance
RGB area scan without white balance
![Shading Correction](/images/1592561026142_880x.webp)
After White Balance
Line signal with active white balance
![White balance](/images/1593013860733_880x.webp)
After White Balance
Area scan with active white balance
Color calibration
For effective color reproduction by the entire scanner, a standardized color calibration is necessary using an IT8-target of a defined color palette. The IT8-target is imaged by the scanner and the software calculates an ICC-profile on the basis of defined reference values. Subsequent scans can use this profile to produce images with reliable color fidelity.
![White balance](/images/1593013808783_880x.webp)
Zoomed sectionof the IT8-target, raw dat
![White balance](/images/1593013895398_880x.webp)
Zoomed section of the IT8-target with applied ICC-profile