Contents || Index
03/22/2005

Data Cube Tool, Cube Button

Data Cube / Cube

  • sums from equal intervals - A way to sum adjacent slices (adjacent spectrum channels for spectrial images) and reduce the total number of slices.
  • running sum - Makes a new data cube where each slice is a sum or max of neighboring slices.  Running sum spectra, running max spectra, etc. can be made with the Plot menu, without making a new data cube.  Unlike sums from equal intervals, this does not reduce the number of slices.
  • Top hat, quotient, product.  New.  Documentation incomplete.
  • from layers - Use a layers slider.  Slices are sums from arbitrary intervals, indicated by the slider.
  • from images - Make a cube from images already opened.  (Read / as image files loads a cube from individual image files.)
  • decimate - extract every nth slice.
  • concatenate cubes - make one cube out of two or more cubes, which you choose in order.
  • register using offsets - shifts slices sidewise or vertically with respect to each other.  See offsets button.
  • offset pixels using index image.  Registration along the depth (z) axis.  For spectral images, this would shift spectra relative to each other along the energy axis.  Uses a registration image, or map of same dimensions as the cube slices.
  • rotate using profile tool.  Use the profile tool to indicate the apparent axis of rotation.  This will rotate the entire cube so that the apparent axis is vertical (or some other indicated direction)
  • crop using region - Makes new cube with slices in the range of the region slider.
  • crop using rectangle - Makes new cube cropped (slice by slice) using the image rectangle.
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  • process slices - perform an image processing operation on all slices and make a new cube.  Operations can be selected from here.
  • ...  (Use <control> key to see documentation on the rest of these functions.)
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  • shrink & scale to byte  Use <control> key to see documentation.
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  • switch type - Change vector cube to image cube and vsvs.  Some operations work on only one of these types.  The PPP Tool uses the vector cube.
  • copy to vector / image cube.  Make a new equivalent cube, but of the other type
  • Fresh pixmaps for remaking pixmaps.  Occasionally pixmaps may be damaged, for example if the flicker is left on while you do something else.  This makes fresh pixmaps for all slices, as if reloading the cube, but without changing any cube data.

 

Top Hat functions