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Questions tagged [fisheye]

A Fisheye-effect is a distortion of images, such as that provided by a Fisheye lens, by which a wide-angle effect is achieved. If you are looking for information on Atlassian's Fisheye source code browser web app, please see atlassian-fisheye.

A Fisheye-effect is a distortion of images, such as that provided by a Fisheye lens, by which a wide-angle effect is achieved.

If you are looking for information on Atlassian's Fisheye source code browser web app, please see atlassian-fisheye.

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Project image points to object points with opencv 3.0.0 beta

I use opencv 3.0.0 beta. I calibrated my camera and I would like project image points (2D) to points in 3D. I saw the function :void fisheye::projectPoints(InputArray objectPoints, OutputArray imagePoints, InputArray rvec, InputArray tvec,…
artoon
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D3 fisheye on width on bar chart

i have been trying to create a vertical bar chart with a d3 fisheye cartesian distortion with only the x-axis being distorted. I have succeeded in distorting the x position of the vertical bars on mouseover with the following code: var maxMag =…
Dexter Tan
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ScrollView stops updating Items when reaching its bounds

So the problem I am facing right now is the following, I want to create a fisheye view (so a view which contains items while the item in the middle is bigger then the other ones like you will see in the MAC OS itembar or somewhere else). So far I…
DokutoMekki
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fisheye distortion

I've found the code below written in java that places a fisheye effect on a buffered image. Is it possible to use this code on a different image format eg jpeg or bitmap? I've tried replacing the bufferedImage with bitmap and instead of using…
turtleboy
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Projection of fisheye camera model by Scaramuzza

I am trying to understand the fisheye model by Scaramuzza, which is implemented in Matlab, see https://de.mathworks.com/help/vision/ug/fisheye-calibration-basics.html#mw_8aca38cc-44de-4a26-a5bc-10fb312ae3c5 The backprojection (uv to xyz) seems…
gebbissimo
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RaspiCam fisheye calibration with OpenCV

I am trying to calibrate RaspiCam Fisheye lens camera with OpenCV. I am using Python example code and the cheesboard row and column numbers are also correct but somehow I can not get a successful result. I have tested with a lso much of photos below…
mesutpiskin
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How to move colored points from 2D image to 3D sphere

I have 2D color image. All colored points are located inside round area in center of this rectangle image, all points outside circle are black (I get these rectangle images from fisheye camera). I know the coordinates of center of this circle and…
VideoProcessingResearcher
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2-D fisheye image to 3D hemisphere

I'm trying to dewarp a small part of fisheye image. My fisheye camera has 180 degrees FOV. I get an input fisheye image in form of round area inside of rectangle frame. My camera gives me an opportunity to get the radius of this circle and…
VideoProcessingResearcher
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Virtual PTZ camera via physical fisheye camera and Open CV

I'm trying to realize a virtual Pan-Tilt-Zoom (PTZ) camera, based on data from physical fisheye camera (180 degrees FOV). In my opinion I have to realize the next sequence. Get the coordinates of center of fisheye circle in coordinates of fisheye…
VideoProcessingResearcher
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Conversion from dual fisheye coordinates to equirectangular coordinates

The following link suggests that we can convert dual fisheye coordinates to equirectangular coordinates using the following equations: // 2D fisheye to 3D vector phi = r * aperture / 2 theta = atan2(y, x) // 3D vector to…
chesschi
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Removing Fish eye effect with no access to the camera

There are some photos captured by a fish eye camera that I no longer have access to. I am trying to remove the fish eye effect on those photos using opencv, all the solutions I have seen required taking photos of a known sized object (i.e: A chess…
omargamal8
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How to use opencv.omnidir module for dewarping fisheye images

I am trying to use omnidirectional module for dewarping fisheye images in Python. I am trying to adapt this C++ tutorial in Python but running into issues. Here is my code: import numpy as np import cv2 import glob nx = 9 ny = 6 # termination…
Kunal Lad
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HTML , Jquery Fisheye menu

I have used the fisheye jquery "interface.js" I want to make make 3rd element with id="default" should be show default like mouse over effect , Please help me thanks in advance HTML
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Thirumalai murugan
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How to add FishEye distortion to UIImage using GPUImage or any other Lib?

I am using GPUImage for adding filters on UIImage. GPUImage does not contain fish eye distortion effect, I need shader code for fish eye distortion effect which could be used in GPUImage custom filter.
Waqar Ali
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OpenCV stitcher fails to stitch undistorted images

I am trying to stitch a panorama using mobile phone camera with an attachable 170 degree wide angle lens. The resulting photo is distorted (fisheye). I understand that to stitch these photos using Stitcher::stitch(InputArrayOfArrays images,…
Kevin
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