Orthomosaic editor - PIX4Dmatic

To edit an orthomosaic:

1. On the toolbar, click Orthomosaic editor

2. Draw the patch where the orthomosaic has to be edited. Then, click on the right-click button to finish the patch creation. It is possible to draw as many patches as needed to edit the orthomosaic. 

3. (Optional) The vertex of the path can be edited after drawing. 

4. In the image viewer, patches will be displayed on all images that can be used to correct the orthomosaic.

5. After patch creation, the projection type has to be selected:

• Planar: The planar projection does not preserve distances, but has fewer distortions than the Ortho projection on sharp transitions such as building edges. Therefore, it is not recommended to use planar images for mosaics dedicated to measurement applications. Its basic use is to improve the visual aspect of the Orthomosaic.
• Orthographic: The Ortho projection preserves distances and can be used for mosaics dedicated to measurement applications.

6. Select an image in Planar or select one or multiple images in Orthographic projection. If multiple images are selected, they will be blended.

Planar:

Orthographic:

For each patch, in the Properties panel,  the images used to edit the orthomosaic are listed.

7. Before apply all the patches, it is possible to change the shape or hide the patch to get the best result.

Edit patch

Once the patch is created, it is possible to modify the vertex position from 2D view moving each vertex to the new position. It is not possible modify it using the image viewer.

Hide patch border

To preview the result after selecting images, you can hide the patch border from the content panel, allowing you to review the outcome before applying the patch.

8. Once all required patches have been created, the final step is to click on the Apply patches button on the toolbar. All the changes will be applied to the orthomosaic.