Using QGC: How to replace restricted area's in QGC with an image

Hi ,
Am newbie in the QGC town. The topic looks huge to me , yet i have to figure out the solution so am reaching out the forum . How can i replace the restricted area’s present in the QGC Map with an image (data contains pixels ,longitude and latitude information.)?
Condition: Remaining area’s in the map shouldn’t altered.
where should i start with this?
any suggestions would be really helpful.
Thanks in advance !