I would like to implement the following figure in LaTeX, including the axis labels. (Assume that in this image matrix there are 12 individual square pictures ... can I fix the size of the individual square?)
How can this be done? I have worked with the packages graphicx, subcaption and subfigure before, but I do not quite understand them well enough to do this.
The figure should have width=0.8\textwidth and go in between two text paragraphs.
Thank you for any advice.
This is how it should look: