simple measure over an image

asked 2013-08-02 10:32:35 -0600

JnDnl
1 ●2

updated 2013-08-02 14:21:45 -0600

20029 ●16 ●82 ●207 http://stevenputtemans...

Hi everyone, I Need to take a measure (euclidean distance) over a set of selected points on an image. In order to make this simple I broke down all the process in steps:

Taking/Loading a photo (with a known pattern in it)
Recognicing the pattern to calibrate measure
Selecting points "from" and "to" in order to measure the distance between them

For my first iteration i will load a picture (half of number 1), select the pattern manually(a rough aproximation of number 2) and select point to measure distances between them. I'm just beginig with openCV, Do I need openCV for my fist iteration?

Thanks in advance :)

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Comments

For me your question is still to vague... Do you want to find euclidean distance in 2D between points in a single image? Or do you want to get the 3D euclidean distance of two points in a space, that have been defined in two stereo photo's? Because the second approach is a lot more complicated, including camera calibration, coordinate system conversions, mapping to 3D points, ...