I am using the Latex interpreter for the figures, which I create and save as a .eps-file in matlab. The problem is that I want to change some names of the labels of the axis in these .eps files and I don't have any more the original .fig file or my original matlab-code/-data from which I have created these .eps-files. If I open the .eps files with Inkscape, it doesn't recognize the font of the x- and y-labels and the legend. It just recognize the numbers on the x- and y-tick. Is there any way to recognize the fonts in the .eps-file and change the names of the labels?
The problem is that the .eps doesn't seem to have any font Information of the y- and x-labels. If I want to edit them in Inkscape, they are just objects with nodes:

Thank you very much.