I have been trying to get pixel by pixel depth data out of a .exr file. I am using blender and rendering with Lux Render. I need to get pixel by pixel depth data, and have read that if I use the z-buffer in blender and render, then save it as a .exr file from Lux Render, there should be pixel by pixel depth data in the .exr file. However, I have not been able to read the .exr. I have access to Matlab. Can anyone help me with this?