Digital image processor for a digital camera
First Claim
Patent Images
1. A digital image processor for a digital camera, comprising:
- a pre-processor arranged to;
receive digital images having a first resolution;
process the received digital images into a lower resolution to form pre-processed digital images;
output the pre-processed digital images from the digital image processor to a display; and
output the digital images in the first resolution to a memory for storage; and
a post-processor arranged to;
receive the pre-processed digital images from the memory;
process the pre-processed digital images to form post-processed digital images; and
output the post-processed digital images;
wherein the pre-processor includes;
a non-uniformity corrector capable of correcting non-uniformities included in the received digital images;
a programmable sampling filter that is connected to the non-uniformity corrector and capable of systematically selecting portions of the corrected digital images received from the non-uniformity corrector;
a modular transformer that is connected to the programmable sampling filter and capable of at least correcting aberrations in the sampled digital images received from the programmable sampling filter; and
a ditherer that is connected to the modular transformer and capable of at least correcting aliasing in the digital images received from the modular transformer.
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Abstract
There is provided a digital image processor. An exemplary digital image processor comprises a pre-processor arranged to pre-process received digital images having a first resolution into a lower resolution to form pre-processed digital images. The pre-processor may be arranged to output the pre-processed digital images to a display independently from the received digital images being stored for subsequent post-processing. The exemplary digital image processor may also comprise a post-processor arranged to post-process received digital images that have been stored for post-processing.
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Citations
18 Claims
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1. A digital image processor for a digital camera, comprising:
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a pre-processor arranged to; receive digital images having a first resolution; process the received digital images into a lower resolution to form pre-processed digital images; output the pre-processed digital images from the digital image processor to a display; and output the digital images in the first resolution to a memory for storage; and a post-processor arranged to; receive the pre-processed digital images from the memory; process the pre-processed digital images to form post-processed digital images; and output the post-processed digital images; wherein the pre-processor includes; a non-uniformity corrector capable of correcting non-uniformities included in the received digital images; a programmable sampling filter that is connected to the non-uniformity corrector and capable of systematically selecting portions of the corrected digital images received from the non-uniformity corrector; a modular transformer that is connected to the programmable sampling filter and capable of at least correcting aberrations in the sampled digital images received from the programmable sampling filter; and a ditherer that is connected to the modular transformer and capable of at least correcting aliasing in the digital images received from the modular transformer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A digital camera, the digital camera comprising:
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a memory; a digital image processor; a pre-processing portion of the digital image processor to, in a first operating mode, pre-process a digital image to form a pre-processed digital image, wherein pre-processing the digital image comprises correcting non-uniformities in the digital image, the digital image processor being configured to transmit the pre-processed digital image from the digital image processor to the memory without compression; and a post-processing portion of the digital image processor to, in a second operating mode, receive the pre-processed digital image from the memory and post-process the pre-processed digital image to form a post-processed digital image, wherein the post-processed digital image is a compressed version of the pre-processed digital image. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification