Tracking and detecting of colors

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Emmanuel
Emmanuel le 16 Juin 2014
Commenté : Image Analyst le 17 Juin 2014
Hi all! I would like you to clarify me on these questions plz
If I calibrate my camera to a particular resolution say 640x360, can I use it for another resolution like 1024x768?
Also I want to know as to how many centimeters does 1 pixel contain in my image. It varies from system to system., How do I find that?. Also, it is not definitely square. SoI hsve to find the length and width of it.

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Image Analyst
Image Analyst le 16 Juin 2014
See my spatial calibration demo, attached.
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Emmanuel
Emmanuel le 16 Juin 2014
Hey thanks a lot!! That was awesome.. But I cannot use your code..Can you please help me clarify my doubts above?
Thank you!
Image Analyst
Image Analyst le 17 Juin 2014
You have to measure something you know, such as a ruler.
If you change the resolution and the field of view stays the same then obviously you can't use the same spatial calibration and will need a new one that properly takes into account the different number of pixels spanning your real world field of view.

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