System and method to allow undoing of certain digital image modifications
First Claim
Patent Images
1. A method, comprising the steps of:
- a) recording locations of pixels modified in a digital image by a digital image adjustment;
b) recording original pixel data present in the locations before the digital image adjustment; and
c) storing the locations and the original pixel data from the locations in an informational portion of a file comprising the adjusted digital image.
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Abstract
When a digital imaging system, such as a digital camera or scanner system, performs an image adjustment that affects pixels in a digital photograph, the system stores the original pixel data in a header, tag, or similar informational portion in the resulting digital image file, The original pixel data can be retrieved at a later time and replaced in the digital photograph as a way to “undo” the image adjustment. The digital imaging system may optionally be a digital camera. The digital imaging system may optionally be a scanner system. The pixel data retrieval may be performed by the digital imaging system or by another device, such as a computer.
74 Citations
24 Claims
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1. A method, comprising the steps of:
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a) recording locations of pixels modified in a digital image by a digital image adjustment;
b) recording original pixel data present in the locations before the digital image adjustment; and
c) storing the locations and the original pixel data from the locations in an informational portion of a file comprising the adjusted digital image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A digital camera, comprising:
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a) means for producing a digital image;
b) memory that stores the digital image; and
c) logic that performs an adjustment on the digital image, the adjustment modifying pixel data in the digital image;
and wherein the logic records the locations and original content of pixels modified by the adjustment, and stores, in the memory, the locations and original content in an informational portion of a digital image file comprising the adjusted digital image. - View Dependent Claims (23, 24)
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Specification