| 摘要 |
Embodiments of the present invention provide an optimized image processing system for a digital camera in which memory and computational requirements are reduced over known image processing systems. A digital imaging device as in the figure includes an image capturing device (210) that generates image data in a color space, each color component of the color space being represented by a predetermined data rate. The digital imaging device further includes an image coder (230) that receives the image data at the predetermined data rate and compresses the image data. In the present invention, the pixel interpolation that characterizes known image processing systems is omitted. Optionally, the present invention also may omit color space transformations (220) and downsampling. The resultant image processing system achieves similar coding efficiencies that are achieved by the known image coders and does so with lower computational and memory requirements and, therefore, increased processing speed.
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