Classifier-based enhancement of digital images
First Claim
Patent Images
1. A method of enhancing digital images on a computer-readable storage medium using a computer or other like programmable apparatus having a processor and a memory, said method comprising:
- receiving images and related pertinent information from a database;
classifying said images into plurality of groups;
enhancing said images in each said group; and
sending said enhanced images to the database.
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Abstract
Embodiment of the present invention receives images from a database. Next, the images are sized and then grouped into different classes by a classifier. After the classification, images in each class are enhanced using steps including the dynamic range management, noise reduction, blur removal, color correction, and background modification. The image files are iteratively ascertained to have smaller than a pre-specified file size. Next, the enhanced images can be pushed back to the database through a variety of means.
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Citations
18 Claims
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1. A method of enhancing digital images on a computer-readable storage medium using a computer or other like programmable apparatus having a processor and a memory, said method comprising:
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receiving images and related pertinent information from a database;
classifying said images into plurality of groups;
enhancing said images in each said group; and
sending said enhanced images to the database. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14)
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8. The intermediate step of claim S wherein noise reduction comprises the steps of:
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selecting parameters based on the classifier grouping;
computing the luminance image;
selecting regions corresponding to gradient value higher than a prespecified threshold gradient;
rejecting isolated regions of high gradients by using connectedness; and
combining a fraction of the original luminance image back in the smoothed regions.
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9. The intermediate step of claim S wherein noise reduction comprises the steps of:
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selecting parameters based on the classifier grouping;
computing the luminance image;
selecting the region belonging to the background;
smoothing region in the background; and
combining a fraction of the original luminance image back in the smoothed region.
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15. A system of enhancing digital images on a computer-readable storage medium using a computer or other like programmable apparatus having a processor and a memory, the system comprising:
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means to receive images and related pertinent information from a database;
means to classify said images into plurality of groups;
means to enhance said images in each said group using different sets of parameters; and
means to send said enhanced images to the database.
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16. A method to improve the visual quality of digital images generated from a plurality of imaging devices on a computer-readable storage medium using a computer or other like programmable apparatus having a processor and a memory, the method consisting steps of:
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classifying images into a plurality of groups based on attributes;
and enhancing each group of images using different sets of parameters.
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17. A system to improve the visual quality of digital images generated from a plurality of imaging devices on a computer-readable storage medium using a computer or other like programmable apparatus having a processor and a memory, the system consisting steps of:
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classifying images into a plurality of groups based on attributes;
and enhancing each group of images using different sets of parameters.
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18. A method for automation of quality enhancement for digital images acquired from at least one data source, achieved in at least one data base, and posting the output on the internet or intranet using a computer or other like programmable apparatus having a processor and a memory, said method comprising:
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receiving images and related pertinent information from a database;
enhancing images automatically with minimal user interaction;
sending said enhanced images to the database; and
posting enhanced images on the internet or intranet with other pertinent information.
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Specification