Patent Number: 6,252,931

Title: Processing method for an original image

Abstract: The invention relates to an image processing method in which an original image is first decomposed into a series of detail images, with each of which there is associated a respective spatial frequency range, low contrasts being enhanced before assembly of a final image from the images which are produced by the decomposition and are subsequently modified. The modification of the detail images is performed in dependence on the relevant image value as well as in dependence on the mean image value and/or the variation of the image values in a window around the relevant pixel.

Inventors: Aach; Til (Lubeck, DE), Buzug; Thorsten (Kiel, DE), Stahl; Martin (Kaltenkirchen, DE), Pralow; Thomas (Buchholz, DE), Maack; Ingo (Norderstedt, DE), Springub; Ansgar (Hamburg, DE)

Assignee: U.S. Philips Corporation

International Classification: G06T 5/20 (20060101); H05G 001/64 ()

Expiration Date: 06/26/2018