Not working test

[vyastreb]

Hello Cayetano Martínez Muriel,

Thanks a lot for sharing!
That seems to be a great tool.
However, it didn't work on my test image.
There are probably too many curves.

Here's the original image:

Here's the produced result:

Kind regards,
vyastreb

[vyastreb]

Another not working example:
Input:

output:

It seems to me that it does not get log-scales... I wrote explicitly that the Y-axis is in [1e-6,1e-1].

[cayetanomarmur]

Hi! Thanks for coming here with your tests and doubts. Yes, the fully automatic selection of the curves does not always work, and sometimes the results are poor and difficult to make it work better. However, a semi-automatic selection could work very well in your cases. The approach I'd suggest (and I have tested it for your plots) is the following.

For plot 1:
This one is problematic due to the amount of lines, and the fact that they are crossing/hiding each other does not help. I'd probably use the "Global Color" tool, together with a definition of a kind of "common start" for the "normal load" part (see attached figure for the obtained results.

For plot 2:
Yes, log-scales are still not supported by the tool but is noted as needed for the next version.
I'd directly use the "Global Color" tool, to select the red, green and blue curves. I'd use a low value of color tolerance to avoid the selection of the std's, and you'd need to erase the selected lines in the legend. Dashed lines are difficult to automatically select. I'd use the magic wand and select every piece of the dashed line, which is "what we are looking to avoid", but instead of needing 200 points to properly represent the curve, you need to click on the 30 pieces of the curve, which is not perfect but already an improvement in comparison to the manual selection of the curve.

Hope it helps while the tool is improved!