Re: IJ Question: Area Calibration from a Second Picture
Posted by
Justin McGrath on
Jan 31, 2007; 12:45am
URL: http://imagej.273.s1.nabble.com/IJ-Question-Area-Calibration-from-a-Second-Picture-tp3700477p3700478.html
If both objects are parallel to the focal plane of the camera and the
same distance from the camera, then the scales are the same as well.
Justin
On 1/30/07, Stephanie Huang <
[hidden email]> wrote:
> Hi,
>
> I'm working for the USDA Center for Urban Forest Research, and I'm trying
> to implement the use of ImageJ for leaf area analysis.
>
> Is there a possible way to calibrate area from a thresholded region of
> known area on a second picture to find the thresholded area of the first
> picture? I understand how to use the set scale method (thanks to Larry
> Reinking for the PDF), but the two image method would be preferred.
>
> Thanks!
>
> Stephanie Huang
> UCD AIChE EJE Representative
> UCD EJC VP Of Outreach
> UCD SWE President
>
>
[hidden email]
> (650)283-7630
>