Displaying images using a colormap

You can display the image of a step in pseudo-color using one of the predefined colormaps. This can help highlight small changes in intensity value and assist in the visual analysis of an image. A typical use of the Colormap feature is when displaying thermographic images or depth maps. To select the colormap, right-click on the displayed image of a step, and when the context menu appears, select Colormap and then the required colormap. You can also configure the display element of the operator view so that it uses a colormap. The available predefined colormaps are as follows:

Colormap options	Definition
Glasbey	This colormap contains 256 colors, arranged so that each adjoining color is maximally distinct from its neighbors. This is useful for a Morphology distance operation, or for labeled images (for example, with the ColorMatcher step or the BlobAnalysis step).
Hot	This colormap transitions from black, to red, to yellow, and then, to white along the RGB cube as the indices increase. This can be useful for displaying thermographic images.
Hue	This colormap transitions from red, to yellow, to green, to cyan, to blue, to magenta, and then, to red along the edge of the hue circle as the indices increase. This is useful for displaying the hue component of an HSL image.
Ironbow	This colormap transitions from black, to blue, to magenta, to orange, to yellow, and then, to white. The Ironbow palette is often used for displaying thermographic images.
Jet	This colormap transitions from dark blue, to blue, to cyan, to yellow, to red, and then, to dark red along the RGB cube as the indices increase. This can be useful for displaying 3D elevation maps and thermographic images. This is the default colormap setting for depth maps.
MILPseudo	This colormap transitions from black, to green, to blue, to magenta, to orange, to yellow, and then, to white. This colormap is similar to Ironbow, with the addition of green between black and blue.
Spectrum	This colormap transitions from red, to yellow, to green, to blue, and then, to violet along the RGB cube as the indices increase. This is a representation of the visual spectrum according to wavelengths. It can also be useful for displaying 3D elevation maps and thermographic images.
Unicorn	This colormap transitions from black, to blue, to green, to yellow, to red, to pink, and then, to white.

Depth map colormaps

For a depth map, the default Colormap setting is Jet. To change the Colormap, right-click on the display and choose from the context menu as described above. When in the operator view layout, click on the Display element, and then choose a colormap from the Colormap dropdown list in the Display Configuration pane. Note that all colormaps display invalid pixels in gray, except for MILPseudo, which uses white for such pixels.