Defining Radiometry Specification Templates

The radiometry template defines all the image radiometric corrections that are applied to the output product for both images and colorized point clouds. By clicking on the green plus icon a new radiometry template is created. Note that the order of the corrections is significant in that they are applied from top to bottom.

• Name:
  Name of the template. It is recommended to have an explicit name for better reference.

• Base Correction:

  • "Calibrated" – produces Apparent Reflectance image output

  • "DarkPixel" – produces Apparent Reflectance image output including a dark pixel correction

• Extended Correction:
  The extended correction sits on top of the base correction.

  • “Gradient” – can be added on top of a DarkPixel corrected image, removes brightness gradient within an image

• Balancing Correction
  If enabled, the radiometric normalization calculated in Ingest / Blockwide Radiometry will be applied to the provide a color-balanced product with uniform brightness and contrast. The Balancing Correction requires Dark Pixel and Gradient corrections to also be applied.

• Auto Color Correction
  Correction is based on the sensor’s multispectral bandwidth, and offers the possibility to enhance saturation of the images. NOTE: The auto color correction is only available for sensor systems with MFC150/MFC250 camera

• Sharpening
  Option to apply an image sharpening filter to the output product. The available settings for Sharpening:

  • "Mild", "Medium", "Strong": luminance convolution filter applied uniformly across entire image. All with 3x3 kernel size, and increasing strength from “Mild” to “Strong”.

  • "Selective_Medium", "Selective_Strong": luminance convolution filter selectively applied to enhance edges. Selective_Medium with 3x3 kernel size, Selective_Strong with 5x5 kernel size.

• Gamma:
  Gamma correction that can be applied to the product.

  • It’s not recommended to provide a setting here, if a radiometric profile will be used.