The transformation requires that all graylevel values in the input image be equal to or greater than zero. The transformation requires that all graylevel values in the input image be in the range . Parameters are the three input images. Each image is chosen from a pop-up menu that lists all images currently open. BIL command is useful for composing three images into a color composite.
Real command converts an input image in complex format to two images in real format.
FHT command into its separate components for further processing. Both images default to the image in the frontmost window. Each image is chosen from a pop-up menu that lists all images currently open. The Rotate Image Cube Axes command allows for switching the relative view position of bands, lines, or pixels, as well as flipping the order of pixels on an axis. Most image processing functions are performed on the 2D view of the cube as seen from the positive z-axis as well.