Ptgui for 360 hdr panoramas12/20/2023 I know PTgui only from comparative reviews. It's possible to combine this process with barrel distortion correction, see Q6.14. You can save the thus created project to a file and use it as a template for subsequent corrections: you will only need to start a new project, load the next source image and choose Apply Template. PTGui may complain about missing control points you can ignore this warning. Rectilinear or Fisheye).Ĭhoose the desired output format and press Create Panorama. Set the panorama projection identical to the lens projection (e.g. Go to the HDR/Exposure tab and load the previously saved vignetting curve and camera curve. Note the lens projection that is chosen by PTGui (e.g. The actual vignetting correction can be done as follows: Press the Save buttons below the vignetting curve and the camera response curve to save the curves to a file. In this calibration project, go to the HDR/Exposure tab and press Optimize Now. The amount of vignetting depends on the aperture of the lens so this should be done for each aperture at which you intend to do vignetting correction. How can I correct a single image for vignetting in PTGui Pro?įirst you need to determine the vignetting of your lens. This is an issue because even if you manually add the images (annoying, boring) the resulting image is unusable without further processing. Resulting stitched (PtGui) image shows flaws in the sky what I would believe could be fault of uncorrected lens vignette from DNG source. I have made another test shot with additional images covering the 'upper' row which is not shot during the Sphere creation process.
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