Abstract: For example, in reproduction of a BD-ROM, when two streams of image data having different resolutions are displayed in a picture-in-picture mode, the difference in a sense of resolution between two windows is reduced. In an image conversion section, first image data is converted to image data in a progressive scan format by i-p conversion section, and then, the image size of the first image data is converted so that the first image data is output as third image data. The synthesizing section synthesizes the third image data with second image data, and outputs the synthesized data.

Abstract: An image-level detecting section detects luminance levels in detection areas specified by a video signal processing control section. The video signal processing control section analyzes the detection results to determine the position and range of a non-picture area, and then calculates an optimum vertical magnification which allows only a video signal area to be displayed in the same size as the screen size of an output monitor. A video signal processing circuit clips only the video signal area based on a control signal provided from the video signal processing control section and magnifies the video signal area, thereby displaying the video signal area that should be viewed without causing any disappearance thereof.