Toestel voor het verbeteren van het beeldsignaalonderscheid en een werkwijze daarvoor.

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.