Edge Enhance Options

Use Edge Enhance to enhance object boundaries. This tool uses the image intensity gradient to calculate boundaries. The result is calculated from the following expression:

Result = Input * {Fraction + (1 - Fraction) * gradient[F (Input)] }

where Fraction is a number between 0 and 1, and F is either a linear or an arc tangent function.

Open Edge Enhancement by choosing Filter | Edge Enhance from the softWoRx main menu.

Use	To...
Input, Output, Select region, Reset, Details, Wavelengths	Specify input data and output parameters as shown in Image Input and Output.
Atan	Determine whether the "F" in the above equation is the arc tangent or simply linear. For some images, the arc tangent method yields better edge enhancement.
Fraction	Determine the relative contribution of the original image and the gradient image. Increasing Fraction increases the similarity of the Result to the Input image. Valid values are between 0 and 1.

Edge Enhance Options

Input, Output, Select region, Reset, Details,

Wavelengths

Specify input data and output parameters as shown in Image Input and Output.

Atan

Determine whether the "F" in the above equation is the arc tangent or simply linear. For some images, the arc tangent method yields better edge enhancement.

Fraction

Determine the relative contribution of the original image and the gradient image. Increasing Fraction increases the similarity of the Result to the Input image. Valid values are between 0 and 1.