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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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How to measure the distortion caused by a fish eye undistortion

I am working on a Matlab code to measure the amount of distortion effects (like aliasing) in an undistorted fish eye image. I was able to distort and undistort an image using the division model of fisheye distortion. I got the below image for a…
Varun Vijaykumar
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Flash: ActionScript 3.0 MovieClip Widths

please help me, I'm completely lost in AS3.0 with MovieClip widths. Basically, I am coding a menu, which instead of having a scroll bar if there are too many items for the screen, uses a magnification effect, allowing the user to scroll along the…
tre
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Accurate Approximations of Fisheye lense distortion via non polynomial FET method?

I'm trying to approximate a Fisheye Lense distortion. I originally used the polynomial method described in this paper, and that worked fine for a forward transform, but I forgot that I would need some sort of interpolation so a backward transform…
Krupip
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How to use fisheye camera in unity in Google Tango?

I would like to use Google Tango's fisheye camera to take a picture of the environment then analyse on it. However, how can I achieve this in the Unity environment? Should I continue with the tango AR camera? Thank you.
dddddddaxing
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How to customize fisheye menu !

I am not a pro in jquery and js. I have used jqDock plugin to create fisheye menu for my web site and with the help of a friend I managed to give the menu an active state so on different pages that specific menu element would remain expanded. Here…
nileland76
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Undistorting fisheye image error

I calibrated a fisheye lens using a set of 20 images of a checkerboard. The points are all correctly labelled and I get intrinsics and lens distortion coefficients. Defining the 'square size' variable to 15 for 15mm gives me 0 distortion…
Thomas1982
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how do I get a projection matrix I can use for a pointlight shadow map?

I'm currently working on a project that uses shadowtextures to render shadows. It was pretty easy for spotlights, since only 1 texture in the direction of the spotlight is needed, but its a little more difficult since it needs either 6 textures in…
user2741831
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Equirectangular projection in OpenCV

I study a lot of resource on the internet. I know this is a equirectangular projection. But I have no idea how to performance this projection by OpenCV. Both OpenCV code or Mathematica formula are OK. Thanks a lot!
Kobe Nein
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How to rectify the fisheye images rendered by VRay in 3ds max 2016?

I rendered a lot of images using fisheye camera by VRay. Now I want to process these images, but I need to rectify them at first. Could anyone give me some method about it? Thank you very much!
Dobbie
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Perform calibration on fisheye image - cancelling fisheye effect

I'm currently using opencv library with c++, and my goal is to cancel a fisheye effect on an image ("make it plane") I'm using the function "undistortImage" to cancel the effect but I need before to perform camera calibration in order to find the…
Armand Chocron
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D3.js Fisheye.js strange mousemove behavior

I'm trying to use a Fisheye.js effect in a large Tilfold-Reingold diagram (~4000 objects). The effect I'm aiming for is something like this example. I must be using the Fisheye.js incorrectly as my example doesn't seem to be effecting the desired…
Colin
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Adding fisheye to axes with D3 JS

I have this visualization and I'm trying to add fisheye view to the chart. I have tried adding it with the following lines in the plotData function but it doesn't happen: var fisheye = d3.fisheye.circular() .radius(120); …
supaplex
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Assertion Failed when using fisheye undistortPoints

I am trying to undistort a fisheye image taken from a camera. I have already gotten the camera parameters needed. However, when I run the code below: Mat cammatrix = cv::Mat::zeros(3,3, CV_64F); cammatrix.at(0,0) =…
ksivakumar
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Error in removing the fisheye lens distortion of an image in Matlab

I have the following image: I want to remove the fisheye lens distortion from this image, so I used the following code: [X,map] = imread('Foam_Image.jpg'); % Read the indexed image options = [size(X,1) size(X,2) 1]; % An array containing the…
Bowecho
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opencv 3.0 fisheye calibration

I try to calibrate my fisheye camera using opencv 3.0. I use this code: int _imageWidth = 5184; int _imageHeight = 3456; cv::Matx33d _cameraMatrix; cv::Vec4d _distCoeffs; std::vector >…
artoon
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