Primary and secondary images research science fiction

There are two types of images primary and secondary

Primary images
A primary image means that it is an original image. It means it is a record of event written, spoken or photograph by a eyewitness or near the time of the event. It also means recorded by first hand knowledge of the facts.

This is a image of the original Mona Lisa which is in a museum in paris. This is an example of primary imagery because it is the original Mona lisa which makes it a primary image; however this is took by someone so it is secondary image because it is not the original and not took near the time of the painted was finished. This also can stop copy right because you will be about to tell between primary and secondary imagery.



Secondary images
A secondary image means that it is not a original. It is a written record of the event that was created long after the event occurred. Usually by someone not directly associated with the event.
Secondary sources is mainly photographs because they are taken after you have already captured the moment in reality.

When i research concept art i use them for ideas to create my own ideas which then would be primary imagery because it is different from the original.