Display device`s e.g. digital TV, image signal distinction enhancing apparatus, has saw-tooth artifact processor to remove saw-tooth artifacts in de-interlaced image signal based on diffusion value and median value of image signal

摘要

The apparatus has a de-interlacing unit (210) to de-interlace input image signals using an interlaced scanning process and to output a de-interlaced image signal using a progressive scanning process. A saw-tooth artifact processor (220) is provided for removing saw-tooth artifacts in the de-interlaced image signal based on a diffusion value and a median value of the de-interlaced image signal. An independent claim is also included for a method to enhance an image signal distinction.