Image processing device and image processing method for displaying high resolution images

摘要

A decoding execution unit decodes image data encoded with a resolution higher than that of a display device. A display buffer stores image data decoded by the decoding execution unit. A standby buffer stores image data decoded by the decoding execution unit while the image data stored in the display buffer is being displayed. A reduced image buffer stores image data produced by reducing the entirety of the image data. An image display control unit switches from the image data stored in the display buffer to the image data stored in the standby buffer if the decoding of the image data by the decoding execution unit is completed, and enlarges the image in the reduced image buffer and stores the enlarged image in the display buffer if the decoding of the image data by the decoding execution unit is not completed.

主权项

1. An image processing device comprising:
a decoding execution unit configured to decode image data encoded with a resolution higher than that of a display device; a display buffer configured to store image data decoded by the decoding execution unit and larger than a display area of the display device; a standby buffer configured to store image data decoded by the decoding execution unit while the display device is displaying the image data stored in the display buffer; a reduced image buffer configured to store image data produced by reducing the entirety of the image data decoded by the decoding execution unit; and an image display control unit configured to select one of the display buffer, the standby buffer, and the reduced image buffer so as to display the image data stored in the selected buffer on the display device, wherein the image display control unit switches from the display buffer to the standby buffer such that the image display control unit uses the standby buffer as the display buffer if the decoding of the image data by the decoding execution unit is completed, and enlarges the image in the reduced image buffer and stores the enlarged image in the display buffer if the decoding of the image data by the decoding execution unit is not completed.