8.7. Image Gradient
| 8. Filteret «Finn kantar» |

### 8.7. Image Gradient

#### 8.7.1. Oversyn

Figur 17.172. Applying example for the Image Gradient filter

Originalbiletet

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

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

  | 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

  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.

8.6. Sobelrelieff |  | 9. Uspesifiserte filter

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