Differences Between Salt and Pepper Noise
Given below is the table of differences Between Salt and Pepper Noise
|
Feature |
Salt Noise |
Pepper Noise |
|---|---|---|
|
Appearance |
White pixels |
Black pixels |
|
Intensity Value |
Maximum (255 in 8-bit images) |
Minimum (0 in 8-bit images) |
|
Impact on Image |
Bright spots |
Dark spots |
|
Common Source |
Bit errors, data transmission |
Bit errors, data transmission |
|
Mitigation Techniques |
Median filtering, morphological filters |
Median filtering, morphological filters |
|
Visual Effect |
Increases image brightness locally |
Decreases image brightness locally |
|
Detection Complexity |
Similar for both types |
Similar for both types |
|
Frequency of Occurrence |
Equally likely |
Equally likely |
|
Influence on Histogram |
Shifts towards higher intensity values |
Shifts towards lower intensity values |
|
Restoration Difficulty |
Equal restoration techniques |
Equal restoration techniques |
Difference between Salt Noise and Pepper Noise
Digital picture handling includes the unwanted alteration of pixel values in an image which degrades the visual quality and interferes with image analysis. Several types of noise are found in digital images with “salt-and-pepper noise” being one of them, often caused by mistakes during data transmission or when capturing pictures. This type of noise manifests as random white or black pixels on an image that look like salt and pepper sprinkled over it.
Contact Us