plug-in-laplace

Thorsten Schnier

Description

High-resolution edge detection

Help

This plugin creates one-pixel wide edges from the image, with the value proportional to the gradient. It uses the Laplace operator (a 3x3 kernel with -8 in the middle). The image has to be laplacered to get useful results, a gauss_iir with 1.5 - 5.0 depending on the noise in the image is best.


Type

unknown

Parameters

Type Name Description
PF_INT run-mode The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }
PF_IMAGE image Input image (unused)
PF_DRAWABLE drawable Input drawable

Return

None