http://imagej.273.s1.nabble.com/Using-ImageJ-to-extract-plot-data-tp5011561p5011563.html
On Wed, Feb 11, 2015 at 7:55 AM, Ion C. Andronache <
> Dear Aaron,
> You can use ImageJ plugin: Figure_Calibration. You can download it here:
>
http://www.astro.physik.uni-goettingen.de/~hessman/ImageJ/Figure_Calibration/Figure_Calibration.class> How to use is here:
>
>
http://lukemiller.org/index.php/2011/09/digitizing-data-from-old-figures-with-imagej/> Best wishes,
> Ion.
>
> ________________________________________________________________
> Best wishes,
> Ion C. Andronache, PhD
> Associate member, Research Centre for Integrated Analysis and Territorial
> Management, Faculty of Geography, University of Bucharest
> Tehnical Redactor at Journal of Wetland Biodiversity
>
https://www.researchgate.net/profile/Ion_Andronache3/>
>
>
>
>
>
> 11.02.2015, 14:47, "Aaron Hendrickson" <
[hidden email]>:
> > Hello ImageJer's
> >
> > I am trying to extract data from a plot that is in a tiff format. I have
> > attached a compressed version of the plot for all to see. The image is
> > cropped such that the bottom left pixel marks the origin, and the x and y
> > axes range from 640nm-664nm and (-35)dbm-(-5)dbm; respectively. I was
> > hoping to be able to set the scale of the image under the analyze>set
> scale
> > such that the coordinates of the mouse would represent the values of the
> > plots corrdinates. I was able to do this easily for on axis but cannot
> > seem to figure out how to do it for both. I tried messing with the
> aspect
> > ratio as well but didnt know if that was what I needed to do. Any help
> > would be great.
> >
> > Thanks!
> > Aaron
> >
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