Noise removal

Noise is an effect in pictures which occurs due to poor lighting and dusty atmosphere, causing them to look grainy. Noise filters are used to remove noise, or pixels with randomly distributed colour levels. This helps to blend a selection into the surrounding pixels. Noise filters can create unusual textures or remove problem areas such as dust and scratches from an image. There are different techniques to remove noise.

• Despeckle
• Dust & Scratches
• Median