CurveSnap – Image curve extractor (22,805 views)
download CurveSnap V1.1 (4742)
The codes is put on github on 2014/5/3
The author is sorry that the codes have few comments
For bugs and advice, please add new issue in https://github.com/xoofee/CurveSnap/issues
The following tutorial is from V1.0, while the current V1.1 is sightly different on output control. Please refer to the updated pdf tutorial file in the package.
1 Capture curve from screen – A first example
2 Choose curve by connectivity
3 Copy the data
4 Open existed image – A second example
6 Erase to make curve isolated
7 Choose data points by dragging a rectangle
8 Choose curve by its color
If the desired data curve is colored, then Choose by Color is recommended.
Currently this tool have large error when the curve becomes a vertical line, especially in peaks and valleys, since the algorithm is designed to average in the vertical direction. For example:
Thanks Fernando for this bug feedback