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Questions tagged [unwarp]

10 questions
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4 answers

How to map a point onto a warped grid

Say you have a collection of points with coordinates on a Cartesian coordinate system. You want to plot another point, and you know its coordinates in the same Cartesian coordinate system. However, the plot you're drawing on is distorted from the…
endolith
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how to unwrap an array in php

i have this array here: Array ( [0] => Array ( [presentation] => Präsentationen ) [1] => Array ( [news] => Aktuelle Meldungen [devplan] => Förderprogramme [salesdoc] => Vertriebsunterlagen …
antpaw
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Distorting an image using a height map?

I have a height map for an image, which tells me the offset of each pixel in the Z direction. My goal is to flatten a distorted image using only it's height map. How would I go about doing this? I know the position of the camera, if that helps. To…
Blender
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Dewarping an image of a curved bottle surface

I'm looking for a way of performing dewarping on an image of a curved bottle label, such that the curved text in the original image appears as a straight line in the altered image. The following is an example of an image I might be looking to…
A.S.
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Unable to remap retaining all black regions while using cv2.fisheye undistort

After generating the map1 and map2 using the cv2.fisheyeUndistortRectifyMap(), while remapping using cv2.UndistortRectifyMap(), I am unable to fetch the full black region even by keeping the Balance as 1. The expected image shall have all corners…
amar adak
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Unwarp curved surface

I have a cylindrical object on which a circular label is pasted. I extract the contour of the image. I know the radius of the cylindrical object as well as the label. But not every time the ellipse obtained will be exactly symmetrical. How can I…
harsh
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jQuery unwrap removing more than one parent

I have an html structure like so The two divs inside the aside do have classes and child elements but for the sake of the question you don't need to know what…
Mark Weston
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Moving points to a regular grid

I need to evenly distribute clumped 3D data. 2D solutions would be terrific. Up to many millions of data points. I am looking for the best method to evenly distribute [ie fully populate a correctly sized grid] clumped 3D or 2D data. Sorting in…
GlennT
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Unwarping image using OpenCV

I am trying to unwarp seggregated views taken from an OV5647 (RPi) camera with Fisheye lens. I have tried calibrating the camera using the code in the https://medium.com/analytics-vidhya/camera-calibration-with-opencv-f324679c6eb7. I have also…
Spandan Patkar
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Are there any C/C++ library for unwarping images?

What I have is a picture taken from the ceiling providing a "radially distorted"/elliptical image. I need to unwarp it and make it a regular rectangular image. How would I do this programmatically using C/C++?
user968416
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