PIPP Duplicate Frames?

[Sierra Golf Mike]

No matter if I use AVIs or Stills, PIPP outputs more frames than it inputs as it creates duplicate frames. In AutoStakkert if you choose a specific number of frames, does it use the duplicates and if so would it be better without using them?

[cgarry]

Do you have any 'Quality Weighting' enabled?  Or 'Reverse Play' in the animation options?  Failing that, I cannot think of anyway that PIPP can actually generate duplicate frames.

Cheers,
Chris

[Sierra Golf Mike]

Quality weighting is enabled but only because I saw it in a tutorial!

[cgarry]

Ah, that would be the cause of the frame duplication!  If you disable it things should work as you expect.

The idea behind quality weighting is to allow the very best frames in a stack have more influence that the poorer frames in a stack.  This was actually not my idea and enough users say there can be a slight benefit from it so I have not removed it from PIPP.  For this approach to work you need to let PIPP do all frame selection and stack 100% of PIPPs frames, or close to 100%, in AutoStakkert.

AutoStakkert will actually discard duplicate frames if they are next to each other in the file.  The quality weighting function in PIPP deliberately orders the frames in such a way so that duplicate frames are not next to their corresponding originals and therefore AutoStakkert does not discard them.

Cheers,
Chris

[Sierra Golf Mike]

On 02/04/2017 at 18:12, cgarry said:

Ah, that would be the cause of the frame duplication!  If you disable it things should work as you expect.

The idea behind quality weighting is to allow the very best frames in a stack have more influence that the poorer frames in a stack.  This was actually not my idea and enough users say there can be a slight benefit from it so I have not removed it from PIPP.  For this approach to work you need to let PIPP do all frame selection and stack 100% of PIPPs frames, or close to 100%, in AutoStakkert.

AutoStakkert will actually discard duplicate frames if they are next to each other in the file.  The quality weighting function in PIPP deliberately orders the frames in such a way so that duplicate frames are not next to their corresponding originals and therefore AutoStakkert does not discard them.

Cheers,
Chris

Chris,

Thanks for that, I have only recently started using PIPP and it helps enormously. I don't know what everything means but I am getting decent images via PIPP, AutoStakkert, Register and Photoshop. Last night I ran PIPP with 33 images of the moon, top two thirds anyway. Three times I ran it and three times the output was only one frame, the others were discarded because it said the AOI was not in them but it was and looking at them individually they all look much the same! Any ideas?