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What does "Salt-and-pepper Noise" mean?

Table of Contents

Salt-and-pepper noise is a type of visual distortion that can affect digital images. It appears as random bright and dark spots, making parts of the image look like they're covered in salt and pepper. This noise often happens when there are errors during image capture or transmission.

Causes

This noise can be caused by various factors, such as faulty sensors, transmission issues, or interference during the image processing stage. It is most commonly seen in images taken in low-light conditions or when using low-quality cameras.

Effects on Images

Salt-and-pepper noise can lead to a poor viewing experience by obscuring important details like edges and corners in images. This makes it challenging to see the true features of the picture.

Solutions

To improve image quality, filters are used to reduce this noise while keeping important details intact. These filters work by identifying and removing the affected pixels and replacing them with more accurate values based on surrounding pixels. This helps create a cleaner and clearer image that better represents the original scene.

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