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2. DxO ViewPoint - Wikipedia

   en.wikipedia.org/wiki/DxO_ViewPoint

   Users can correct keystoning in order to adjust the perspective of a photograph, either automatically or through manual methods including point selection, placing horizontal and vertical lines, or creating a rectangle. Users can set DxO ViewPoint to automatically crop an image once an adjustment has been made.

3. Perspective control - Wikipedia

   en.wikipedia.org/wiki/Perspective_control

   Picture of Notre Dame de Reims showing perspective distortion The same picture corrected. Perspective control is a procedure for composing or editing photographs to better conform with the commonly accepted distortions in constructed perspective. The control would: make all lines that are vertical in reality vertical in the image.

4. Image editing - Wikipedia

   en.wikipedia.org/wiki/Image_editing

   Perspective control: original (left), perspective distortion removed (right). Some image editors allow the user to distort (or "transform") the shape of an image. While this might also be useful for special effects, it is the preferred method of correcting the typical perspective distortion that results from photographs being taken at an ...

5. Perspective correction - Wikipedia

   en.wikipedia.org/wiki/Perspective_correction

   Tools. Tools. move to sidebar hide. Actions ... Perspective correction may refer to: ... Perspective distortion for perspective handling in images;

6. Perspective distortion - Wikipedia

   en.wikipedia.org/wiki/Perspective_distortion

   The concept of perspective distortion has fascinated artists, architects, and scientists for centuries, evolving alongside the development of visual culture and optical theory. Perspective distortion refers to the manipulation of visual perception through deliberate techniques that create altered or exaggerated views of objects or scenes.

7. Image geometry correction - Wikipedia

   en.wikipedia.org/wiki/Image_geometry_correction

   The simplest application of image geometry correction is a specific case known as keystone distortion correction derived from Keystone effect.Keystone distortion gets its name from the symmetric trapezoidal distortion resulting from misaligned projector placement in the vertical dimension (although the term is generally applied to the non-symmetric quadrilateral shape that occurs from an off ...

8. Tilt–shift photography - Wikipedia

   en.wikipedia.org/wiki/Tilt–shift_photography

   In photography, a perspective-control lens allows the photographer to control the appearance of perspective in the image; the lens can be moved parallel to the film or sensor, providing the equivalent of corresponding view camera movements. This movement of the lens allows adjusting the position of the subject in the image area without moving ...

9. Homography (computer vision) - Wikipedia

   en.wikipedia.org/wiki/Homography_(computer_vision)

   Shows how to do a perspective transform using GIMP. Allan Jepson (2010) Planar Homographies from Department of Computer Science, University of Toronto . Includes 2D homography from four pairs of corresponding points, mosaics in image processing, removing perspective distortion in computer vision, rendering textures in computer graphics, and ...