The invention relates to an image processing apparatus and a method of the same. According to the invention, the image processing apparatus comprises a generation unit configured to generate image signals for displaying a plurality of screens on one display surface. The plurality of screens include a screen of sub display areas to display plural different thumbnail images with plural different image signals acquired separately and simultaneously through broadcast signals or Internet as the origin thereof, and a screen of a main display area to display an image of the one sub display area selected from the screen of the sub display areas; an operation signal acquisition unit configured to acquire an operation signal from a user; and a control unit configured to scale a focused one of the plurality of screens, when the operation signal common to the plurality of screens to scale the screen is acquired from the user.