Patent
Method and system for accessing image data adaptively
Guo Ai
- 21 May 2010
1
TL;DR: In this article, a data transfer bandwidth between a display controller and a memory device is detected to obtain bandwidth characteristics, and an image format to be used is determined by comparing the bandwidth characteristics with a preset mapping relationship between at least two image formats.
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Abstract: Techniques for adaptively accessing image data in a data memory space are disclosed. According to one aspect of the present invention, a data transfer bandwidth between a display controller and a memory device is detected to obtain bandwidth characteristics. An image format to be used is determined by comparing the bandwidth characteristics with a preset mapping relationship between at least two image formats and the bandwidth characteristics. A current image format is updated by the determined image format to be used if the determined image format to be used is different from the current image format. The image data in the memory is then read out according to the current image format.
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Citations
Patent
Method And Apparatus Of Color Image Rotation For Display And Recording Using JPEG
Wen-Lung Huang
- 20 May 2010
TL;DR: In this article, a method and apparatus of color image rotation for display and recording using JPEG compression and decompression is provided, which includes the steps of: setting the operation modes of JPEG encoder and JPEG decoder respectively; waiting until the image data ready for encoding; performing JPEG encoding and reentry information processing; waiting to the compression of one entire frame of image completed; setting the operator mode of the encoder; and then performing JPEG decoding and re-entry information updating processing.
1
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