Range Filter

Command

Image
Filters
Range

Description

Applies a Range filter to an image.

In the range method, the color value of each pixel is replaced with the difference of maximum and minimum (i.e. the range) of color values of the pixels in a surrounding region.

The range filter is used to find edges within an image.

Dialog box

Filter Size: larger filter yields stronger effect.

Click Preview to judge the results.

Click OK to proceed.

Examples

Before:		After:

See also

• Arithmetic Mean Filter
• Geometric Mean Filter
• Harmonic Mean Filter
• Contraharmonic Mean Filter
• Median Filter
• Maximum Filter
• Minimum Filter
• Midpoint Filter
• Yp Mean Filter
• Emboss Filter
• Canny Edge Detector
• Image menu