04-22-2015 09:11 PM
I need to do two point image calibration calibration in labview.
using run labview step.
both pixel and real world values are from config file.
How to do two point calibration?
04-24-2015 06:08 AM
Hello,
you can use "Set Simple Calibration" to specify simple pixel-to-world mapping. But if you have perspective distortion, you would need at least 4 points to compute pixel-to-real world mapping (homography - https://decibel.ni.com/content/blogs/kl3m3n/2015/04/24/homography-mapping-calculation-labview-code):
Could you explain the problem more clearly?
Best regards,
K
04-24-2015 10:01 AM
Hi klemen,
Thanks a lot for your reply.
i need to do 2 point calibration .
from my motion system. Here i have only X axis .. so i can specify x distance only y will be zero .
(X1,0) (X2,0).
so i need to calibrate my image using 2 points.
pixel value and x location .. i read from my motion system.
i just pass those points and real world values.
..
I dont know how to do .. do you have any example file ?
04-26-2015 08:51 PM
Hi ,
i got it How to calibrate 2 points in Set simple Calibration.
Thanks.
Before i use Set Simple calibration i need to do some calculation (Pixel /mm).
after that i feed into that function ..