Patent ID: 7505074
Filing Date: 2009-03-17
Classification: H04N

Abstract:
1. A display control apparatus for displaying an image, said apparatus comprising: a reading unit configured to read encoded image data from a storage medium; a generating unit configured to decode the encoded image data read by the reading unit and to generate first image data and second image data from the decoded image data, where the first image data has a number of pixels corresponding to a resolution of a display area of a display and the second image data has a number of pixels larger than that of the first image data; a storage unit configured to temporarily store the first image data and the second image data generated by said generating unit; a designation unit configured to designate a rotation of the image displayed in the display area; a determination unit configured to determine whether or not a current enlargement ratio for displaying an image is larger than the enlargement ratio in an initial stage; a rotation control unit configured to execute rotation processing of the first image data stored in the storage unit if the designation unit designates the rotation and the current enlargement ratio is not larger than that of the initial stage, and to execute rotation processing of the second image data stored in the storage unit if the designation unit designates the rotation and the current enlargement ratio is larger than that of initial stage; a display control unit configured to control the display to display an image based on the first image data temporarily stored in the storage unit on the display area if the current enlargement ratio is not larger than the enlargement ratio in the initial stage, and to control the display to display a partial image, which is obtained by cutting out from the second image data temporarily stored in the storage unit, on the display area if the current enlargement ratio is larger than the enlargement ratio in the initial stage.