MAPIR Scripts
  • Welcome
  • SETUP: DO THIS FIRST
  • Survey3 Cameras
    • Convert RAW+JPG to TIFF
    • White Balance
    • Vignette (Flat Field) Correction
    • PWM Control (from RasPi)
  • Kernel2 Cameras
    • Convert RAW(.mapir) to TIFF
    • White Balance
    • Vignette (Flat Field) Correction
    • Connect to Kernel2 (TCP)
    • Change Camera Settings
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  1. Kernel2 Cameras

Vignette (Flat Field) Correction

Correct the vignette of the Kernel2 images

PreviousWhite BalanceNextConnect to Kernel2 (TCP)

Last updated 4 years ago

All lenses produce a vignette due to light taking longer to reach the pixels at the edge of the sensor. A vignette is where the pixels at the edges of the sensor are darker than they should be. The wider the lens angle of view the more likely the wavelengths in a narrow band-pass filter will also be shifted outside of the incident angle, resulting in a vignette.

To correct the lens vignette a series of flat field images are captured in various lighting conditions.

You can apply vignette corrections using a parameter during the conversion of RAW(.mapir) to TIFF using the script.

"Convert RAW(.mapir) to TIFF"