Method of displaying part of a radiographic image

A method of displaying on a display device a radiographic image represented by a digital signal representation comprising the steps of

• 1) applying a transformation to the radiographic image to decompose it into a pyramidal multi-resolution representation comprising a sequence of detail images representing detail present in said radiographic image at one of a multiple resolution levels, and a residual image,
• 2)—storing said multiresolution representation into a memory
• 3)—retrieving said multi-resolution representation up to a predefined resolution level,
• 4)—modifying the retrieved multi-resolution representation at least one resolution level,
• 5)—generating an overview image by applying the inverse of said transform to said modified multi-resolution representation,
• 6)—displaying said overview image,
• 7)—defining an area of interest on said displayed overview image,
• 8)—retrieving the multi-resolution representation of the part of the image within said area of interest of said memory,
• 9)—modifying the retrieved multi-resolution representation of said area at at least one resolution level by applying to pixel values of the detail images within said area a non-linear monotonically increasing odd conversion function with a slope that gradually decreases,
• 10)—reconstructing said image area by applying the inverse of said transform to the modified multi-resolution representation of said area,
• 11)—displaying said reconstructed image area.