Chapter 3

Operations Submenu: Analyzing An Image

Assuming you have all the support files in place and have properly set the environment (if you don't understand this, consult your system manager or the person who installed this software), begin by typing dui [return] on the command line. On your terminal, the program will print the DISPLAY and XAPPLRESDIR environment variables or print an error message. If the environment is properly set, the screen should pretty much be covered with the dui application. From here, very little typing is done. Most interaction is performed by moving the pointer to a menu item and clicking mouse button 1 (MB1).
Nearly all interaction with the program is through the Commands Menu in the upper left of the screen. Selection of a Commands Menu item brings up a submenu just to the right of the Commands Menu. Control remains with the submenu until its [Done] button is pressed, at which time the submenu disappears. While a submenu is displayed, the Commands Menu is darkened to show that its items are "insensitive".
Begin, now, by clicking [Operations] and observing the Operations Submenu to the right of the Commands Menu as shown in Figure 3.1.

Figure 3.1: Commands Menu (left) and Operations Submenu (center and right).



The typical sequence of operations necessary to analyze an image is listed in Table 3.1. The Operations Submenu items are shown in boxes.

Table 3.1: Operations Submenu button sequence of operations for image analysis.

You will now be led through this process for an image called k102.avg. Two files are involved: k102.avg is the file containing the image data while k102.avg.imp is an ascii import file containing information about the image. You actually pick the import file from the Image File Browser; the import file has, in turn, the name of the file containing the image data. A full description of the import file may be found in the Appendix A.6.



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