2D Data and the Image Display Window

Mana has many commands to manipulate 2-D data (images). Images can be loaded from FITS files and mathematical operations applied to them. Various other operations, such as rebinning, shifting, rotating, and so forth are also available. Images can be displayed using the Kii image window. In an 8-bit visual, the image window has a dynamic colormap to allow the user to change the relationship between pixel value and the displayed color. There are three colormaps which can be selected by pressing the middle three buttons on the bottom row. The PS button produces a PostScript file from the image. The user can change the magnification and the position of the image with the mouse (left - recenter at cursor; middle - zoom out; right - zoom in). There are four color overlays which the user can draw objects of different shapes (circles, boxes, lines) or draw a contour. The four buttons labeled R, G, B, Y turn on or off the display of the red, green, blue, and yellow overlays.



Eugene Magnier
2001-03-20