8.7. Image Gradient
Att 8. Filteret «Finn kantar»  Fram

8.7. Image Gradient

8.7.1. Oversyn

Figur 17.172. Applying example for the Image Gradient filter

Applying example for the Image Gradient filter

Originalbiletet

Applying example for the Image Gradient filter

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. Aktivering

You can find this filter through Filters → Edge-Detect → Image Gradient….

8.7.3. Innstillingar

Figur 17.173. Image Gradient filter options

Image Gradient filter options

Presets, «Input Type», Clipping, Blending Options, Preview, Split view
[Notat] Notat

These options are described in Del 2, «Common Features».

Output mode

Magnitude is default: it combines both directions. Direction: only one direction is used. Both is like Magnitude.

Figur 17.174. Output mode examples

Output mode examples

Original image, with abrupt luminosity change

Output mode examples

Option Magnitude is selected

Output mode examples

Option Direction is selected. In result, black is no edge detected, white is edge detected.


Att  Opp  Fram
8.6. Sobelrelieff  Heim  9. Uspesifiserte filter
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