All photographs are images but not all images are photographs. That's very profound.
You can see photograms for whatever you like. It might be a little man in the box making drawings. But we are talking about definitions here and that means general acceptance. You could have looked this up for yourself. Check out the work and acceptance of Moholy-Nagy and Man Ray for example. I noted Man-Ray previously.
The major Australian Photographic award won by photograms went to either Ponch Hawks or Ruth Maddison in the 1970s. Can't remember which one it was now, probably Hawks.
Photography is a process with more than one part. It hasn't happened until the image is fixed. That's the big difference between a camera obscura and the making of a photograph.