fSpy
Open source still image camera matching

Importing to Blender

For Blender users, there is an official fSpy importer add-on that sets the parameters of the Blender camera and optionally sets the camera background image.

To get started

Importing to other applications

Getting your camera parameters into an applications without a dedicated importer is likely possible and involves copying the fSpy parameter values one by one and pasting them into the target application. Here's an outline of the process:

  • Set the camera viewport to match the dimensions of the input image
  • Use the input image as the camera background
  • Set the camera field of view
  • Set the camera position
  • Set the camera orientation
  • Set the principal point, unless it coincides with the image midpoint