When the Editor window opens, it shows the current SRView colormaps. The image colormap is the set of 64 colors used by SRView to display images. The transparent mask colormap is the set of 32 colors used to display transparent masks over images. The opaque mask colormap is the set of 10 colors used to display masks in the "opaque" mask mode. Cell 0 of the opaque colormap is normally used to show mask pixels in the opaque mask mode. Cells 1 and 2 are used in the "Two-Color Mask Display" mode to show mask pixels having values 1 and 2, respectively. Cells 1 and 2 are used in the "Multi-Color Mask Display" mode to show mask pixels having values 101 and 102, respectively. Cells 3 - 9 are used in the multi-color mask mode to show mask pixels having values 1 - 7, respectively. For more information on mask display modes, see "Multilevel Masks" in the Quick Start section of this manual.
To change colors in a colormap, first click (left mouse button) on a color in the "Select Color" squares on the left of the window. The color is displayed in the "Selected Color" rectangle on the upper right side of the window. The upper rectangle on the lower left of the window is a color ramp from white to black. The lower two rectangles are color ramps from from black to the selected color and from the selected color to white. Colors can also be selected from the ramps by clicking on them.
Once the desired color is in the "Selected Color" rectangle, click down on that rectangle, drag the cursor to a colormap, and release the mouse on the colormap cell to be changed. The number of the cell under the cursor is shown on the right end of the colormap. The cells between any two cells of a colormap can be linearly interpolated between those two cell colors by clicking down on one of the two cells, dragging to the other cell, and releasing the mouse button.
To open a lookup table file in the editor, click on "Open". A file selection dialog opens to let you select the lookup table file.