Method for automated high speed improvement of digital color images
AssigneeTrusight Ltd.
InventorMoredechai Shefer
Life of this patent
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Abstract
An automated method of improving digital color images at high speed, which supports pipe-lining and has very little memory requirements, and is therefore specially suitable for on-the-fly processing of real time video, as well as for processing of large batches of images without the need of human intervention. The method includes a novel dynamic range adaptation scheme that operates on the norm of the image, which is suitable as is for non-color images. For color images, a simple color reconstruction stage is added that maintains optimal color fidelity.
Claims10
A high-speed digital enhancement method for singled color images, comprising:
- a. computing a normalized light dynamic range compressed image;
- b. computing a normalized dark dynamic range compressed image;
- and
- c. computing a balanced dynamic range compressed image, using said normalized light and dark dynamic range compressed images.
A method for dynamic range compression and color reconstruction of a color image, the image having a plurality of original colors and a single original norm, the method comprising:
- a. obtaining a balanced dynamic range compressed norm of the image;
- b. dividing said balanced dynamic range compressed norm by the original norm;
- and
- c. reconstructing each color by multiplying each original color by a quotient of said balanced dynamic range compressed norm divided by the original norm.
Dependencies are inferred from the claim text.