Local area processing using packed distribution functions

摘要

Described herein are devices and techniques for providing adaptable Local Area Processing (LAP) contrast enhancement of imagery by redistributing pixel intensity values in a dynamic range of an imaging device according to a packed statistical distribution function, wherein the redistribution is achieved according to a recursive packing factor.

主权项

1. A method for processing an image comprising:
conforming, using one or more processors, a sampling of a quantity of pixel intensity data of an image to a statistical distribution, wherein the sampling comprises n points; redistributing the sampling, using the one or more processors, by recursively removing, for each of the n points, 1/m values from a range of distribution values available for point n−1 to generate a packed distribution of the sampling, wherein a numerical value of m is greater than 1; mapping, using the one or more processors, the quantity of pixel intensity data to the packed distribution of the sampling to generate a quantity of contrast-enhanced pixel intensity data; and conforming, using the one or more processors, an intensity of at least one pixel of the image to the quantity of contrast-enhanced pixel intensity data to produce a contrast-enhanced image.