Find when frame appeared in video?

[zn]

If I have video file and image from the same movie, how I can find time or frame number (or extract frame) from video file wich will be "closest" to this image?
Source files have different quality and different resolution (with same aspect ratio - can be scaled to be the same size).

[setarip_old]

Hi!

If it's in a format that's accepted, load the video into VirtualDub and simply scroll through it frame by frame.

[Gavino]

Something similar to the findframe function from this thread might help.