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How to correct this barrel distortion

Hello everyones, in my project, i have to calibrate with grid of square, i already have the calibration method the barrel distortion give me a wrong result. How can i undistort these square using homography or whatever without using a chesboard pattern i want all the square to be perfectly aligned. this i my image : https://ibb.co/mXobiy thanks for your help

How to correct this barrel distortion

Hello everyones, in my project, i have to calibrate with grid of square, i already have the calibration method the barrel distortion give me a wrong result. How can i undistort these square using homography or whatever without using a chesboard pattern i want all the square to be perfectly aligned. this i my image : https://ibb.co/mXobiy image description thanks for your help

How to correct this barrel distortion

Hello everyones, in my project, i have to calibrate with grid of square, i already have the calibration method the barrel distortion give me a wrong result. How can i undistort these square using homography or whatever without using a chesboard pattern i want all the square to be perfectly aligned. this i my image : image description thanks for your help

How to correct this barrel distortion

Hello everyones, in my project, i have to calibrate with grid of square, i already have the calibration method the barrel distortion give me a wrong result. How can i undistort these square using homography or whatever without using a chesboard pattern i want all the square to be perfectly aligned. this i my image : image description https://ibb.co/mXobiy thanks for your help

How to correct this barrel distortion

Hello everyones, in my project, i have to calibrate with grid of square, i already have the calibration method the barrel distortion give me a wrong result. How can i undistort these square using homography or whatever without using a chesboard pattern i want all the square to be perfectly aligned. this i my image : https://ibb.co/mXobiy thanks for your help

i have found this answer : https://stackoverflow.com/questions/31879019/image-lens-distortion-correction but the result is always bad, how can i adapt this for my case.