If you don't want to deal with the details of lens correction, you may skip In the following, weĭescribe how to determine the lens correction parameters of this modelĪ free graphical user interface for Panorama Tools, which is available for various operating systems. These parameters can hardly be found by trial and error. Rather a zoom camera when set to a certain focal length). Sensibly in order to correct the distortion produced by a specific lens (or

Transformation parameters a, b, c, d, which have to be chosen In this approach to the problem, the distortion is controlled by four ImageMagick, as Barrel Correction Distortion One of the most-used lensĬorrection algorithms, introduced by Panorama Tools and used by PTlens, is also offered by Transformations to the digital photograph. Thisĭistortion can however be mostly corrected by applying suitable algorithmic To short focal length) typically produce a pronounced barrel distortion. The majority of this page was contributed by Wolfgang Hugemann.įisheye lenses and low-cost wide-angle lenses (or rather zoom lenses when set You will generally need to correct for these effects, and that is what will be Lens effects and spherical perspective effects. When taking photographs, the images generated are actually distorted by both

Re-engineering parameters from camera created thumbnail Example Keyboard Example (by El-Supremo).

Determining lens parameter sets with Hugin.

Index ImageMagick Examples Preface and Index Introduction to Lens Correction Non-scaling Restraint Ready-made Parameter Sets Calibrating From Scratch

Ptlens alternative