VISTA provides the following commands for performing basic image
processing:
- MERGE
- Merge Overlapping Images or Spectra
- WINDOW
- Window (Crop) an Image to a Smaller Size
- ROTATE
- Rotate an Image
- FLIP
- Change the Orientation of an Image
- BIN
- Compress (bin) an Image or Spectrum
- SHIFT
- Shift an Image
- CLIP
- Replace Pixels Outside an Intensity Range
- COLFIX
- Fix Deferred Charge Columns in a CCD Image
- SMOOTH
- Smooth an Image or Spectrum
- ZAP
- Non-Interactive Image Median Filter
- TVZAP
- Interactively Remove Pixels by Median Filtering
- MEDIAN
- Compute Median of Several Images
- BIGMEDIAN
- Compute Median of a Large Number of FITS Images
- PICCRS
- Optimally Combine Frames with Outlier Rejection
- SURFACE
- Fit a Plane or Second-Order Surface to an Image
- SPLINE
- Replace Image or Spectrum by a Cubic Spline Fit
- CROSS
- Cross-Correlate Images or Spectra
- INTERP
- Interpolate Across Rows, Columns, or Masked Pixels
- REGISTAR
- Register Images Using Field Star Positions
- DSSCOORD
- Compute RA and Dec for Digitized Sky Survey Images
- ATODSIM/ATODFIX
- Simulate/Fix WF/PC1 A/D Conversion Errors
- LINCOMB
- Fit a Linear Combination of Images to an Image
- BL
- Correct an Image for Baseline Subtraction Noise