Write a stand-alone application which allows the user to edit
some text in multiple windows. (You'll probably want to use a
TextArea and a BorderLayout in each
Frame. ) Include standard File and Edit menus as discussed
in class. At a minimum the File menu should have New, Open, Close,
Save, Save As..., Print, and Quit menu items. The Edit menu should
have Cut, Copy, Paste, Clear, Select All, and Undo menu items. The
New menu item should bring up a new text editing window. The Close
menu item should close the current window. The Quit menu item
should exit the application. All other menu items should be
disabled for now. Include the standard shortcuts for those menu
items that have them, (e.g. N for New, C for Copy, and so on )
The simple algorithm used in class for calculating the average intensity when converting a color image to black and white does not take into account human perception. For instance, we see green much more clearly than other colors. A much better formula is:
Intensity = 0.299*Red + 0.587*Green + 0.114*Blue
Write an image filter which uses this formula to change a color picture to a black and white picture.
Write an image filter that produces a negative of an image. The basic algorithm here is to subtract the value of each color from 255. For example a red value of 200 would be transformed into a red value of 255 - 200 = 55.
Note: I'm not 100% sure this will actually produce a photographic negative. Consider this an experiment.