Sometimes you cannot choose the optimum angle to take a picture. If the object is essentially planar (e.g. a painting on a wall) or the
angle is not off by much then there is hope that you can correct the perspective afterwards.
The opposite may also be of interest if you want to make a composition and place objects at different angles, e.g. pep up screenshots for a
The Perspective plugin lets you carry out both active ("Modify") and passive ("Rectify") transformations. You can rotate the image around
three axes, then reposition and resize it. Grid lines can be displayed both before and after transformation.
Here is a screenshot of the Perspective Transformations plugin:
History of ChangesVersion 8.0 (current version)
AwardsPerspective Transformations got the editor's recommendation in a test by DigitalPHOTO.
DownloadsDownload Perspective Transformations
As an example take the following detail of "La casa de los azulejos" in Mexico City.
The next example is the Edificio Reforma Avantel, also in Mexico City. The sequence shows how you can transform the image using control
points to mark a rectangle.
Related StuffShiftN is a clever freeware application for automatic correction of converging lines in images by applying a perspective transformation similar to the optical effect of a shift lens, hence the name. ShiftN will detect and correct converging lines automatically, however manual adjustments are also possible.
© 2009 by Martin Vicanek