https://github.com/opendronemap/orthorectify

Orthorectify images from ODM reconstruction
https://github.com/opendronemap/orthorectify

3d-reconstruction orthophotos photogrammetry photos

Last synced: 5 days ago
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Orthorectify images from ODM reconstruction

• Host: GitHub
• URL: https://github.com/opendronemap/orthorectify
• Owner: OpenDroneMap
• License: agpl-3.0
• Created: 2022-10-19T18:41:31.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-04-04T08:28:54.000Z (about 1 year ago)
• Last Synced: 2025-06-21T22:27:18.229Z (8 days ago)
• Topics: 3d-reconstruction, orthophotos, photogrammetry, photos
• Language: C++
• Homepage: https://www.opendronemap.org/odm/
• Size: 1.33 MB
• Stars: 14
• Watchers: 5
• Forks: 4
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Orthorectification Tool

![image](https://user-images.githubusercontent.com/1951843/111536715-fc91c380-8740-11eb-844c-5b7960186391.png)

This tool is capable of orthorectifying individual images (or all images) from an existing ODM reconstruction.

![image](https://user-images.githubusercontent.com/1951843/111529183-3ad6b500-8738-11eb-9960-b1aa676f863b.png)

## Building

Use the build scripts `build_release` and `build_debug` to compile natively.

Otherwise you can build the docker image:

```

docker build -t digipa/orthorectify .

```

## Usage

After running a reconstruction using ODM:

```

Orthorectify /dataset-path

```

With docker

```

docker run -it -v /dataset-path:/dataset digipa/orthorectify /dataset

```

This will start the orthorectification process for all images in the dataset. See additional flags you can pass at the end of the command above:

```

This tool is capable of orthorectifying individual images (or all images) from an existing ODM reconstruction.

Usage:

  Orthorectify [OPTION...] positional parameters

  -e, --dem arg               Absolute path to DEM to use to orthorectify

                              images (default: odm_dem/dsm.tif)

      --no-alpha              Don't output an alpha channel

  -i, --interpolation arg     Type of interpolation to use to sample pixel

                              values (nearest, bilinear) (default:

                              bilinear)

  -o, --outdir arg            Output directory where to store results

                              (default: orthorectified)

  -l, --image-list arg        Path to file that contains the list of image

                              filenames to orthorectify. By default all

                              images in a dataset are processed (default:

                              img_list.txt)

      --images arg            Comma-separated list of filenames to rectify.

                              Use as an alternative to --image-list

  -s, --skip-visibility-test  Skip visibility testing (faster but leaves

                              artifacts due to relief displacement)

  -t, --threads arg           Number of threads to use (-1 = all) (default:

                              -1)

  -v, --verbose               Verbose logging

  -h, --help                  Print usage

```

-----------------

## Roadmap

Help us improve this module! We could add:

- [ ] Merging of multiple orthorectified images (blending, filtering, seam leveling)

- [ ] Faster visibility test

- [ ] Different methods for orthorectification (direct)

- [ ] GPU Support