Zoom me up, Scotty

Who are these people, and why are they jumping out of hyperspace?

This is a computed image. It started as a snapshot of a group at a lunchroom table. There was nothing particularly significant about it except as a record of a pleasant reunion of this group of old friends. And like many such shots of a group at a long table, it is hard to get them all in the frame and to represent each member in a photogenic pose. In particular, the persons at the far end of the table are lost in the distance. It is particularly noticeable with wide-angle lenses, the default for phone cameras.

My test image, a scene shot using a wide angle lens of a group at a table.  Photo courtesy Fred Nourbakhsh.

I wondered if I could re-image this scene so that the people are more equally sized, the furthest members are not so small, and the closest not so big.  This is what would naturally occur if the photographer used a longer focal length lens and stood further back. This is an account of what I learned.

Continue reading