POW and X Colormaps

POW allows some interactive manipulation of the Colortable used to display grayscale images. POW has detailed X Colormap handling options with this release. There are four different ways of dealing with colormaps. The powColormap options are available in fv by using the "-cmap" command line argument to fv. The different options are:

Generally, if you experience colormap problems, mode 1 is probably the most robust unless you don't have any pseudocolor visuals (e.g. a Linux machine running in 16 or 24 bit mode).

The POW Color Menu

The POW Color menu has three parts:

  1. The top section has a few default colortables to choose from.
  2. You can reverse the "dark to light" direction of your colortable by checking the Invert Colortable button.
  3. There are three scalings of the colortable available in the lower section.

You can interactively change the contrast and brightness of the current image's colortable by dragging the left mouse button across the image.


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Last modified: Tue Oct 27 12:20:00 EDT