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< li class = "toctree-l2" > < a class = "reference internal" href = "../outputs/#point-cloud" > Point Cloud< / a > < / li >
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< h1 > Using Image Masks< a class = "headerlink" href = "#using-image-masks" title = "Permalink to this headline" > 露< / a > < / h1 >
< p > Starting from ODM < code class = "docutils literal notranslate" > < span class = "pre" > 2.0< / span > < / code > people can supply image masks to inform the software to skip reconstruction over certain areas. This is useful for cases where the sky was accidentally included in the input photos from oblique shots, or simply to limit the reconstruction of a single subject.< / p >
< p > To add a mask, simply create a new black and white image of the same dimension as the target image you want to mask (you can use a program such as GIMP to do this). Color in black the areas to exclude from the reconstruction.< / p >
< div class = "figure align-center" >
< img alt = "Target image" src = "https://user-images.githubusercontent.com/1951843/93247037-ade87a00-f75b-11ea-8b42-25bc1d89279d.png" / >
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< div class = "figure align-center" >
< img alt = "Image mask" src = "https://user-images.githubusercontent.com/1951843/93247007-a2954e80-f75b-11ea-87b3-4f04bd1737b9.png" / >
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< img alt = "3D result (building is masked)" src = "https://user-images.githubusercontent.com/1951843/93246970-8f827e80-f75b-11ea-8179-5a8fdd9f5193.png" / >
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< p > Name your file:< / p >
< p > < code class = "docutils literal notranslate" > < span class = "pre" > < filename> _mask.JPG< / span > < / code > < / p >
< p > For example, < code class = "docutils literal notranslate" > < span class = "pre" > DJI_0018.JPG< / span > < / code > can have a mask by creating a < code class = "docutils literal notranslate" > < span class = "pre" > DJI_0018_mask.JPG< / span > < / code > file and include that in the list of images. You can use < code class = "docutils literal notranslate" > < span class = "pre" > .JPG< / span > < / code > , < code class = "docutils literal notranslate" > < span class = "pre" > .PNG< / span > < / code > , < code class = "docutils literal notranslate" > < span class = "pre" > .BMP< / span > < / code > and < code class = "docutils literal notranslate" > < span class = "pre" > .TIF< / span > < / code > formats for image masks.< / p >
< p > < a class = "reference external" href = "https://github.com/opendronemap/docs#how-to-make-your-first-contribution" > Learn to edit< / a > and help improve < a class = "reference external" href = "https://github.com/OpenDroneMap/docs/blob/publish/source/masks.rst" > this page< / a > !< / p >
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