File:FisheyeLensRoom0.2x(real0.25x) roundedSquareConform.jpg

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Deutsch: Zimmer schräg und gerade fotografiert, umgerechnet in eine in ein verrundetes Quadrat eingepasste winkeltreue Projektion (rechteckig stereografisch). Die dunklen seitlichen Ränder umschließen den umgerechneten Bildkreis von 172°. Die Bildkanten außen haben diagonal (wenn nicht verrundet) und orthogonal einen Öffnungswinkel von 180°.
Diese Abbildungsart ermöglicht oben und unten gerade waagerechte Linien und links und rechts gerade lotrechte Linien. Diagonale Bereiche kreuzende Linien werden geknickt oder mit einer Rundung umgelenkt (sieht besser aus). Die Bilderreihen unterscheiden sich im Rundungsradius. Die oberste Reihe ist nicht verrundet. Die unterste Reihe ist maximal verrundet und hat keine Bereiche mit geraden Linien und entspricht somit der winkeltreuen Abbildung (azimutal).


English: Photo of room obliquely and straightly taken and remapped into in a roundet-square aligned conformal projection (rectangling stereographic). The dark lateral borders surrounds the remapped image circle of 172°. The edges of image has diagonal (if not rounded) and orthogonal a field of view (fov) of 180°.
This mapping allows top and down straight horizontal lines and left and right straight vertikal lines. Diagonal areas crossing lines are broken or curved (looks better). The image rows differs in rounding. The top row has no rounding. The bottom row is at a maximum rounded and does not have any areas with straight lines and thus has the stereographic mapping (azimuthal).


Rectangling stereographic projection by Chang, Hu, Cheng and Chuang

projection center by d = 1

trajectory by width w = 1, height h = 1 and roundness l = {0 / 0.2 / 0.5 / 1} in row {1 / 2 / 3 / 4}

  is the radius to a point on trajectory in - direction and depends on w, h, l.

   ,         in all directions

f = 512 pixel

For lossless resecting subimages in JPG-format you can use JPEGTRAN or JPEGCROP

(2048x2048+0+0, 2048x2048+0+2048, 2048x2048+0+4096, 2048x2048+0+6144, 2048x2048+2048+0, 2048x2048+2048+2048, 2048x2048+2048+4096, 2048x2048+2048+6144).
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rect-orthographic, rect-equidistant, rect-comform

azimutal: ortho, equisolid, equidistant, stereo, gnomonic

panini: ortho, equisolid, equidistant, stereo, veduta-conform

panorama: lambert, equidistant, mercator, cylindric

cube:

net, row (obliquely/straightly taken)


This is a retouched picture, which means that it has been digitally altered from its original version. Modifications:
Deutsch: Umprojiziert in die winkeltreue verundetes-Quadrat-Darstellung. Rechtes Bild vorher 3,27° gedreht und Farben bearbeitet.
English: Remapped into stereographic rounded-square-view. Right image 3.27° turned before and colors processed.
. Modifications made by Peter.wieden.

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Date/TimeThumbnailDimensionsUserComment
current21:53, 30 March 2015Thumbnail for version as of 21:53, 30 March 20154,096 × 8,192 (4.07 MB)Peter.wieden (talk | contribs){{Information |Description ={{de|1==Zimmer schräg und gerade fotografiert, umgerechnet in eine in ein verrundetes Quadrat eingepasste winkeltreue Projektion (rechteckig stereografisch). Die dunklen seitlichen Ränder umschließen den umgerechneten...

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