Prewitt-Operator

The Prewitt operator is an edge detection filter similar to the Sobel operator, only the gray values ​​in the current gradient are not additionally weighted in this.

And

By utilizing the separability, the computing time can be greatly reduced.

Analogously to the Sobel operator is obtained as the output of the edge detector, a gradient in the X- and a Y-direction.

In the same way, the edge strength and directions to the edges towards.

Sample Images

Gradient in the X direction

Gradientenstärkebild

Gradientenrichtungsbild