# Pto gen

From PanoTools.org Wiki

pto_gen assembles a Hugin .pto project file that is suitable as input for further tools such as the cpfind control-point generator, or for opening with the Hugin panorama GUI itself. Functionality is similar to match-n-shift[*].

The general use is

       pto_gen *.jpg

This creates a project file from all jpg images, in the same folder as the first photo. The project file is named first_file-last_file.pto using the same convention as the Hugin GUI.

## Options

- -o | --output output.pto Output a pto file with the given filename (instead of the default).

- -p | --projection number Sets the projection type for all images (0 - rectilinear, 2 - equirectangular, 3 - full-frame fisheye, ...).

- -f | --fov number Sets the horizontal field of view for all images. Useful if your lens does not store the focal length and/or crop factor correctly in the EXIF data.

- -c | --crop left,right,top,bottom Sets the input images crop to the given values.

- -s | --stacklength number Sets the number of images in each stack (default: 1, meaning no stacks).

- -l | --linkstacks When given links the image positions in stacks.

- --distortion Tries to load distortion data for the images from the lensfun database.

- --vignetting Tries to load vignetting data for the images from the lensfun database.

- -h | --help Display help.

## Related links

Panorama scripting in a nutshell - pto_gen is useful in stitching panoramas from the command-line

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