Adaptive video processing apparatus and video scaling method based on screen size of display device

The adaptive video processing device and an image scaling method for generating a GUI to display a GUI suited to the screen size of the display apparatus is disclosed in accordance with the screen size of the display device. The image processing apparatus according to the invention according to the screen size of display devices connected, by enlarging or reducing the size of the GUI or to change the arrangement of the items arranged on the GUI to implement the optimum GUI on the screen size of an external display device It characterized.