Load images and show in subpanel in VIEW_3D

Hi guys. I want to create a new panel in VIEW_3D, I have a principal panel, but I need to show an image from my PC in a sub-panel…is this possible? If so, how can I create it? Thx

Why not just open an image editor area right next to the 3d window?

The idea is to show something in the View_3D and the subpanel to show image related.