Working with multiple images or figures

Hi,

I for my thesis project I am working with Matlab and I am creating a big set of ternary composition diagrams. For the sake of better analysis and reduction of the reported data I have decided on overlaying a lot of images in the same image, such as shown in the figure attached.

The data is generated with Matlab but the creation of the images is currently done in Powerpoint. This goes gruesomely slow and is very repetitive, especially since I have somewhat 300 of this type of images to make (takes around 10 minutes to set up one figure).

I have been trying to look for some Matlab code for images processing and making this type of figure, however, without results. I am no expert in image or figure configuration in Matlab either so I am clueless as to how I could achieve this. I cannot imagine that it would be impossible to do, however...

Thank you for your help in advance!

Kind regards,

Dries

[Image Analyst]

Images are rectangular. What did you do in Photoshop to make your images appear triangular?

[Jan]

Which details do you want to reproduce? Are the green triangles on the lower axis important?