Image analysis – Applications – Biomedical applications
Patent
1995-04-06
1997-03-04
Johns, Andrew
Image analysis
Applications
Biomedical applications
382260, 382275, G06K 936
Patent
active
056088132
ABSTRACT:
With a method for compressing a dynamic range of an image, an original image signal Sorg representing an original image is processed, and a processed image signal Sproc representing an image having a narrower dynamic range than the original image is thereby generated. The method comprises the steps of calculating the value of an unsharp mask signal Sus corresponding to each of picture elements in the original image by averaging the values of image signal components of the original image signal Sorg, which image signal components represent the picture elements belonging to a predetermined region surrounding each picture element. Values of the processed image signal Sproc are calculated with the formula
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Fuji Photo Film Co. , Ltd.
Johns Andrew
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