OpenCPN: Export charts to JPG or BMP

[daumann]

For a simulator I need to bake hi-res textures out of different detailed layers of the ENC chart in high resolution in JPG or preferably BMP format.

Is there a plugin or standard option to export to JPG/BMP like in the SeeMyENC software?
If not, can you think of a work around?

Thanks for your suggestions!
Dietmar