Workstation for displaying dynamic image with real-time special effects

A dynamic-image displaying workstation, comprising:

• a display having a screen;
• means for setting a changeable window area on the screen of the display in response to first information representing the window area;
• means for setting a changeable dynamic-image display effective area on the screen of the display in response to second information representing the dynamic-image display effective area;
• means, being responsive to the first information and the second information and also to third information representing a dynamic image, for displaying the dynamic image only in an area on the screen of the display in which the window area and the dynamic-image display effective area overlap each other;
• and
• means, being responsive to the first information and the second information and also to fourth information representing a second image composed of a window image and an out-window image, for displaying the window image in a portion of the window area which is separate from the dynamic-image display effective area, and for displaying the out-window image in an area on the screen which is separate from the window area.

A dynamic-image displaying workstation, comprising:

• a display device having a screen;
• data outputting circuitry for outputting first information representing a changeable window area on the screen, second information representing a changeable dynamic-image display effective area on the screen, fourth information representing a dynamic image and fifth information representing a second image composed of a window image and an out-window image;
• means, being responsive to the first information representing a changeable window area on the screen and the second information representing a changeable dynamic-image display effective area on the screen, for generating third information from the first information and the second information, the third information representing an overlap area on the screen in which the window area and the dynamic-image display effective area overlap each other;
• and
• means, being responsive to the first information and the third information and receiving fourth information representing a dynamic image and fifth information representing a second image composed of a window image and an out-window image, for selecting one of the fourth information and the fifth information and feeding the selected one of the fourth information and the fifth information to the display device in response to the third information so that the dynamic image will be indicated only in the overlap area on the screen, that the window image will be indicated only in a portion of the window area on the screen which is separate from the overlap area on the screen, and that the out-window image will be indicated in an area on the screen which is separate from the window area.