Attached are 2 high-resolution images with 8 graphs each.
I need to transform each of the graphs into an Excel table (16 alltogether).
How to do it:
You will need to open the graphs in the graphics editor (Preview on Mac or Paint on Windows, or like...) and pick up coordinates of datapoints in pixes. Then convert these coordinates into meaningful data values and put both in excel spreadsheet.
For example for graph1 if you set 0 as the start of the coordinate space, point (100mm,100%) will have coordinates (4520,2034). This means that 100% on the vertical scale is 2034 pixels. Horizontal scale is logarithmic, which means that the interval between 10mm and 100mm can be mapped to 4520 pixels.
If we then take point (1361, 2034) it can be converted into (20mm,100%) using logarithmic scale: 10^(1361/4520 +1) = 20mm. The "+1" is because the graph is plotted in the 2nd range of the logarithmic scale (from 10 to 100).
You will need to figure out proper calculations for graphs that have more than 1 log range.
Deliverable: one excel file with 16 sheets. Each sheet should have two tables and an Excel graph.
Table 1: coordinates of all data points in pixels.
Table 2: values translated from the graphs
Graph: excel graph based on Table 2, which will look identical to the original graphs.