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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 apply fisheye effect on a normal image using opencv-fisheye module in python

I am trying to apply fisheye effect on a normal image using opencv-fisheye module. For converting a fisheye image to normal image, 'cv2.fisheye.undistortimage' api can be used. I am not sure how to get the fisheye image with the help of…
Siva Raj
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Convert a fisheye image to an equirectangular image with opencv4

I want to transform a single round fisheye image to an equirectangular image with a C++ algorithm and OpenCV4. The idea is from a input image loaded on my computer like this : I want to obtain an output image like this : I'm using the method…
KenZone51
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Image-Processing: Converting normal pictures into FishEye images with intrinsic matrix

I need to synthesize many FishEye images with different intrinsic matrices based on normal pictures. I am following the method mentioned in this paper. Ideally, if the algorithm is correct, the ideal fish eye effect should look like this: . But…
Xin Shen
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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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FishEye Picture Effect (Barrel Distortion) Algorithm (with Java)?

I'm looking for the algorithm (bitmap pixel manipulation) to simulate the fisheye lens (Barrel Distortion) from normal pictures. So far I've found implementation involving external libraries like OpenCV, OpenGL or jhlabs. Since I'm taking a class in…
tsong99
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Reverse fisheye radial distortion using Field of View model

Let's suppose I have this distorted image taken from a fisheye camera with 185º FoV. Image taken from Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 1541-1545, Shanghai, China, March 2016. I want to…
Santiago Gil
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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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Convert full frame fish eye to equirectangular mathematically

I want to convert a full-frame fisheye image to an equirectangular, so I can use it for panoramic stitching. I have used Hugin and libpano for this purpose and they work fine. Following image have been converted by hugin. I want to know the…
Ahmed_Faraz
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How can I add the fisheye lens effect to my hierarchical edge bundling graph?

I've made a hierarchical edge bundling graph similar to the example provided by Mike Bostock (which i've linked to on jsfiddle). The problem is that my graph is significantly larger which makes it unable to be fully displayed in the viewing window…
dalvacoder
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Weird behaviour of Fisheye Distortion plugin

Hi I would like to use Fisheye Distortion plugin for my force-directed graph in d3.js, but when I want to apply this plugin, behaviour of graph is weird. I am new in d3.js and not good at computer graphics. complete sample in jsfiddle var fisheye =…
Matt
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transformation issues when implementing fisheye distortion in a radial tree

Basically, I am attempting to apply the d3 fisheye distortion algorithm to a radial tree. I believe the issues I am encountering revolve around the fact that the coords being fed to the fisheye distortion are the coords computed by the…
FernOfTheAndes
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How to create fisheye lens effect by openGL?

I am trying to create lomo fisheye effect on an image using openGL. Should I use cube mapping and fisheye projection? Is there any open source that I can refer to?
0pcl
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Anyone know of a jQuery fisheye/dock navigation plugin that is able to have a fixed position?

I'm looking to put a horizontal fisheye/dock nav on my site, but I need it to be fixed positioning... all the ones I've found do not support fixed positioning. Here are links to some of the ones I've found: jQuery OS X Dock #1 - Doesn't support…
Matt
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failed to get full undistorted fisheye image

I am following this tutorial (https://medium.com/@kennethjiang/calibrate-fisheye-lens-using-opencv-part-2-13990f1b157f) on how to undistort a fisheye image. I have successfully get the intrinsic values of the camera and is able to get the…
bbb
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Calculate distortion parameters using F-theta chart

I have a working fisheye camera for which I have fx, fy(in pixel and in mm) values. I also have cx,cy(in pixel) values. I have been given an optical distortion value in %. And also I have an F-theta chart. The F-theta chart contains values as…
Tahera Tabassum
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