# FILE menu: There are three submenus: OPEN IMAGE; CONVERT; PALETTE. OPEN IMAGE submenu. The system prompts the user for a FILENAME ending in .BMP, in the same directory. This FILENAME.BMP must be an uncompressed 8-bit black-and-white image file, in the MicroSoft(R) Bitmap format. If you have an uncompressed black-and-white image file either in the .TGA format, then these may be CONVERTed into .BMP format, in the CONVERT submenu. CONVERT submenu. There is one submenu: BLACK-WHITE .TGA to .BMP. The system prompts the user for a FILENAME ending in .TGA in the same directory. The FILENAME.TGA must be an uncompressed 8-bit black-and-white image file, in the TARGA format. PALETTE submenu. You may change the COLOR PALETTE of an image which is already OPENed on the screen, under the FILE menu. Color palettes (also called `color maps') are look-up tables that tell the computer monitor what colors to display for any gray value. Palettes can be designed to turn gray images into green-tinted or red-tinted images, or even into pseudocolor images, in which different gray values are assigned artificial combinations of red, green, and blue. Experiment with viewing your image, using different color palettes. These transformations will not alter your actual gray value data. The choice of palettes includes: AQUA, BLUE, EMERALD, GREEN, GREY, RED, INVERTED, SPRINKLE, RAINBOW, and EXTREME. #