Re: extract data from graph ?

[Przemek Klosowski]

On 03/28/2018 09:07 AM, CdeMills wrote:
> Hello,
>
> I need to correct a paper containing graphs saved as bitmap images. Those
> images were generated by a scope, and I can't redo the experiment. Is there
> some way to "undo" the graph and get back the curves ?
> I can take the image, apply a differentiator, check for regions of high
> contrast, and map that region back to values. But if some automatic tool
> could do it quickly and without error, it would be better.
There's Engauge http://markummitchell.github.io/engauge-digitizer/
as well as some excellent web based ones (Tatsuro's email)