This example is step-by-step example showing how to digitize complex graph in manual mode with Graph Digitizer Scout

First download and install Graph Digitizer Scout and run Graph Digitizer Scout

In this step by step tutorial we will learn how to digitize a graph from a picture like this:

Run Graph Digitizer Scout:

Open a a picture file:

To digitize such a complex graph it is better to use Manual Mode (press F7 to set this mode)

As this graph contains points not sorted by X-axis so enable Not Sorted by X via Options | Preferences

And then check Not Sorted by X option in the Options dialog :

And click OK

Now change digitization mode to Manual by pressing F7 or by changing method on Digitization tab

Now add points on the graph using left-button on your mouse:

To correct recently added point click on it using left mouse button and program will highlight selected point with red color:

Point is selected. To correct point and move it to another position please click another position and point will be moved to the new position:

To remove recently placed point click on the point with left mouse button:

to delete selected point press Delete or just right-click using your mouse

Add all other points according to the graph:

We can copy data to Excel via clipboard when we finished with all required points.

To copy data to the clipboard use Copy command in Edit menu

Then run Excel and use Paste command in Edit menu to insert points from clipboard:

Excel will paste points to A and B columns:

Now we can generate a chart using data in these columns where A column is X axis and B column is Y axis

Go to Insert menu and use Chart command to generate a chart:

Set chart type and click Finish

Excel will generate new chart using points we copied from graph digitized using Graph Digitizer Scout