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2. DxO ViewPoint - Wikipedia

   en.wikipedia.org/wiki/DxO_ViewPoint

   DxO ViewPoint was released on September 5, 2012, and featured tools to allow users to correct keystoning and volume distortions. [2] It was launched as a standalone application for MacOS and Windows, and also as a plugin for Adobe Photoshop CS3, CS4, CS5, CS6, and Adobe Photoshop Lightroom 3 and 4. [3]

3. Perspective control - Wikipedia

   en.wikipedia.org/wiki/Perspective_control

   RawTherapee, a free and open-source raw converter, includes horizontal and vertical perspective correction tools too. Note that because the mathematics of projective transforms depends on the angle of view , perspective tools require that the angle of view or 35 mm equivalent focal length be entered, though this can often be determined from ...

4. Image editing - Wikipedia

   en.wikipedia.org/wiki/Image_editing

   Traditional analog image editing is known as photo retouching, using tools such as an airbrush to modify photographs or edit illustrations with any traditional art medium. Graphic software programs, which can be broadly grouped into vector graphics editors , raster graphics editors , and 3D modelers , are the primary tools with which a user may ...

5. Perspective correction - Wikipedia

   en.wikipedia.org/wiki/Perspective_correction

   Tools. Tools. move to sidebar hide. Actions ... Download as PDF; Printable version; ... move to sidebar hide. Perspective correction may refer to: Perspective control ...

6. 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 ...

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. 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 ...

9. Keystone effect - Wikipedia

   en.wikipedia.org/wiki/Keystone_effect

   Keystone correction is a feature included with many projectors that provides the ability to intentionally "distort" the output image to recreate the original rectangular image provided by the video or computer source, thus eliminating the skewed output that would otherwise result due to angled projection.