If I have several camera specifics, can I determine the required resolution to view an image at the size I want?
For example, let's say I want a picture of a square painting to be at least
20 pixels large. I know the focal length is
7.5 mm, the painting was
8 m away from the camera, it is
2 m tall in real life. I know that the image sensor is
2.4 mm by
2.4 mm. Can I determine the required resolution to view the painting at least
20 pixels large?