System and method for contrast enhancing an image

摘要

A system (20) and method for enhancing the contrast within an image. An enhanced image (24) can be generated in a real-time or substantially real-time manner from an initial image (22). A low-contrast image is enhanced, including the visibility of text within the low-contrast image. A logarithm transform method (38) is used to enhance the overall contrast and visibility within the image. A power transform method (36) is used to enhance the visibility and contrast of written text, symbols and other forms of signs within the enhanced image (24).