The z, or data value , of the cell should be shown in the status bar. Now move to another few spots and repeat the procedure to get an idea of the data values in the image. You may want to answer question 2 below at this point before continuing. The data values of the image are translated into colors shown on the screen by using palettes. The VIEW module, on the other hand, allows you to display the actual data values the make up an image, rather than translating the numbers into colors.
VIEW then displays a portion of the data values, with the row and column numbers along the sides.
You can compare the image values in VIEW with the image display window. For images with longer data values, you can specify a wider field. Question on this section 2.