8.7. Image Gradient
8.7.1. Overview
Figure 17.172. Applying example for the Image Gradient filter
Original image
Filter “Image Gradient” applied with default options.
Filter “Image Gradient” applied with Direction option.
This filter detects edges in one or two gradient directions.
8.7.2. Activating the filter
You can find this filter through Filters → Edge-Detect → Image Gradient….
8.7.3. Options
Figure 17.173. Image Gradient filter options
Presets, “Input Type”, Clipping, Blending Options, Preview, Split view
Note | |
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These options are described in Section 2, “Common Features”. |
Output mode
Magnitude is default: it combines both directions. Direction: only one direction is used. Both is like Magnitude.
Figure 17.174. Output mode examples
Original image, with abrupt luminosity change
Option Magnitude is selected
Option Direction is selected. In result, black is no edge detected, white is edge detected.