image pre-processing

This section describes a few of the different tools available for pre-processing scanned images.

Note

For working with KH-9 images, the image joining and reseau field re-sampling steps are required.

• KH-9 mapping camera pre-processing steps
  • image joining
  • reseau field
  • cross removal
  • contrast enhancement
• panoramic pre-processing steps
  • image joining
  • resampling using the frame
  • next steps
• air photo pre-processing
  • fiducial marks
  • example camera models
  • historic air photo preprocessing