distortion Questions
3
Solved
I want to apply a pinch/bulge filter on an image using Python OpenCV. The result should be some kind of this example:
https://pixijs.io/pixi-filters/tools/screenshots/dist/bulge-pinch.gif
I've read...
Firth asked 25/9, 2020 at 15:34
10
Solved
I have the cameraMatrix and the distCoeff needed to undistort an image or a vector of points. Now I'd like to distort them back.
Is it possible with Opencv?
I remember I read something about it in...
Upas asked 6/2, 2014 at 22:19
7
Given a set of 2D points, how can I apply the opposite of undistortPoints?
I have the camera intrinsics and distCoeffs and would like to (for example) create a square, and distort it as if the came...
Matchless asked 7/6, 2012 at 16:25
6
Solved
Is there a way with CSS or otherwise of making an image fit within an area. Lets say I have multiple images of different sizes and I want them all to fit within a div of 150px by 100px. I don't wan...
Xray asked 20/3, 2011 at 15:9
3
Solved
I have got a calibrated multi-camera system. Both the internal (focal length, distortion, etc) and external (poses) camera parameters have been estimated using HALCON-based program. Now, the goal i...
Amery asked 29/10, 2019 at 11:16
3
I have some images that takes using mobile phone. Is there any JavaScript library which can straighten the photo of a paper and flatten it? For example I want to create a rectangular image without ...
Hazlip asked 2/11, 2015 at 4:26
2
Is there a free-access database containing camera calibration parameters (camera matrices, intrinsic and extrinsic parameters) for the most popular devices?
I'm particularly interested in mobile-p...
Ruel asked 22/7, 2014 at 13:47
2
Solved
I'm trying to simulate lens distortion effect for my SLAM project.
A scanned color 3D point cloud is already given and loaded in OpenGL.
What I'm trying to do is render 2D scene at a given pose an...
Hammers asked 11/6, 2017 at 23:35
2
Solved
Starting from the Tensorflow CNN example, I'm trying to modify the model to have multiple images as an input (so that the input has not just 3 input channels, but multiples of 3 by stacking images)...
Azikiwe asked 15/5, 2016 at 10:41
2
Solved
I'm trying to perform fisheye camera calibration via OpenCV 3.4.0 (C++, MS Windows).
I used cv::fisheye::calibrate to make K and D (camera matrix and radial distortion coeffitients matrix). Then I...
Crumpler asked 26/2, 2018 at 13:52
2
Solved
Is it possible to skew or distort an Image object in Java? I 'pull' one side of an image out, making it seem closer to me. (LIke 3D).
Any suggestions?
Tinkling asked 9/9, 2011 at 18:44
1
Solved
Good day guys,
I am trying to simulate and image with lens barrel distortion. I create a virtual chessboard (only the corners) and then project it onto my image plane using OpenCV. The idea is to ...
Azerbaijan asked 17/8, 2018 at 12:36
4
Solved
Can't understand how to get (x', y') of original (x, y) in image, for Barrel/Pincushion distortion.
Sloatman asked 1/6, 2011 at 10:21
4
Solved
I know the default OpenCV Calibration systems model a Pinhole camera, but I'm working with a system using extremely wide FOV lens (187-degrees). If there any existing way to do this in OpenCV, or t...
Corposant asked 22/10, 2012 at 14:26
1
Solved
I need to create a visualization in Python just like colah's did on his site. However, I could not find any distortion to grid on matplotlib to perform exactly like he did here. Pls, help me if you...
Styracaceous asked 14/11, 2017 at 21:26
1
I am working on custom image filter project. And I came across one challenging task, in which I am supposed to apply distorted filters as can be seen in Funny face effect app. I want to develop fir...
Contraband asked 7/4, 2017 at 13:8
1
I have an arrow SVG, set up like this one:
<svg xmlns="http://www.w3.org/2000/svg" version="1.0" viewBox="0 0 100 100" class="arrow">
<g class="tail">
<circle (...)></circle...
Oared asked 16/3, 2017 at 17:30
5
Solved
Do any of you have an idea, how to distort an image in any quadrangle?
I want to implement an image, which you can pull any corner in any direction, distorting the image. Anyone has an idea how to...
Premonition asked 18/12, 2012 at 14:27
2
Solved
I've two pictures (A and B) slightly distorted one from the other, where there are translation, rotation and scale differences between them (for example, these pictures:)
Ssoooooooo what I ne...
Asphyxiate asked 26/11, 2012 at 17:36
5
Solved
I am looking for ways to create fisheye lens effect, looked at documentations for openCV, it looks like it contains Camera Calibration functions for radial distortions like fisheye. Is it possible ...
Vallievalliere asked 18/12, 2009 at 9:10
1
Solved
The Google Ideas homepage features an animation that distorts the appearance of some of the text and a button with a static sound effect, in order to simulate signal interference as the content tra...
Scherer asked 9/6, 2015 at 9:16
9
Solved
I've set up a very basic site with a #container div that includes the #navbar and #content. However, when I zoom in or out, the #navbar distorts, if I zoom in the links get pushed down below each o...
Beall asked 14/3, 2012 at 19:48
1
I found that my smartphone (android 4.2.2) is not able to generate square waveforms (i need it to use the audio output as serial line for data transfer).
At beginning i supposed it was my applicati...
Rotl asked 21/4, 2015 at 17:5
3
I get images from a camera where it is not possible to take a chessboard picture and calculate the correction matrix using OpenCV. Up to now I corrected the images using imagemagick convert with th...
Gaddi asked 28/10, 2014 at 7:34
1
Solved
I'm working on a PIV-Workflow and I'm currently pre-processing the images. I need to get rid of the perspective distortion in the images. I do have the "image processing toolbox" and the "camera ca...
Impend asked 2/12, 2014 at 15:47
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