question about distance of the image

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LIU WEIHUA
LIU WEIHUA el 25 de Oct. de 2011
I want to change the pix distance of the image with Millimeter.
In other words, what is the conversion from a pix length to millimeter?
Thank you for you help!

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Image Analyst
Image Analyst el 25 de Oct. de 2011
It is 42. Seriously, you need to put an object of known length into your image and measure its length in pixels. Then you can have a spatial calibration factor that you can use to multiply your lengths in pixels by to get your length in mm.

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