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US 2011/0211768 A1Published application
Method for Improving the Contrast of Images, Particularly Gray Tone Images, and Device for Carrying out Said Method
OwnerMichael Thomsinventor
Life of this patent
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Abstract
A characteristic line is used for converting an initial image into a modified image that is composed of two characteristic lines that have different contrast enhancement properties.
Claims32
-16. (canceled)
A method for improving the contrast of images comprising the steps of:
- converting pixel parameters of an initial image into pixel parameters of a first modified image using a first characteristic line;
- converting the pixel parameters of the initial image into pixel parameters of a second modified image using at least a second characteristic line;
- and,
- superimposing the first modified image and the second modified image into a total image.
1 more element
A device for improving the contrast of images comprising:
- an image memory which contains pixel parameters of an initial image;
- a characteristic line circuit which converts the pixel parameters of the initial image into a first modified image using a characteristic line;
- a second characteristic line circuit which converts the pixel parameters of the initial image into a second modified image using a second characteristic line;
- a superimposition circuit which combines the first modified image and the second modified image into a total image.
1 more element
A method for improving the contrast of images comprising the steps of:
- combining at least a first characteristic line with at least a second characteristic line to form at least one hybrid characteristic line;
- and,
- converting pixel parameters of an initial image into pixel parameters of a first modified image using the hybrid characteristic line.
The method of claim 44 wherein the amplitude limitation takes place smoothly, so that an amplitude-limited characteristic line is continuous and smooth.
A device for improving the contrast of images comprising:
- an image memory which contains pixel parameters of an initial image;
- a characteristic line circuit having a first characteristic line;
- a second characteristic line circuit having a second characteristic line;
- further characteristic circuits each having further characteristic lines;
- a superimposition circuit which superimposes the characteristic lines a into a hybrid characteristic line;
- and,
- a hybrid characteristic line circuit which calculates a modified total image by using the hybrid characteristic line.
4 more elements
Dependencies are inferred from the claim text.