I'm new to kdenlive. I installed it on my PC running OpenSuse in the hope that I'll be able to convert MOV videos (taken from a Canon SLR) into an image sequence (TIF). The MOV is typically recorded at 20 or 30 fps and I'd like to export about 4 fps as an image sequence. I'm able to import the clip into Kdenlive but I'm not sure how I should export it as an image sequence. Is this feature present in the first place?

My second question is (if the image sequence feature is present) are the exact frames exported or is there an averaging or interpolation between frames?

Thanks in advance for your help.

In the render dialog, make a new render profile (icon is document with plus sign).
Group: Image Sequence
Profile name: PNG
Extension: .png
Parameters: vcodec=png

Now, choose to render with it and for 'Output file' put a '-%05d' between the base of the file name and the extension.

Regarding the second question, the Project settings profile must match the image attributes to avoid scaling and deinterlace side effects. The images are exported based on the project settings and then render dialog options Scanning and Rescale may override them. As for framerate reduction, no there is no interpolation, just duplication.

Thanks for your reply. I tried doing what you suggested and I ran into a problem. The PNG images exported are incomplete. The top 30-40% of the image is ok but the rest of it is just black. When I load my clip the "Clip Properties" say that it is 1980x1088 and 29.97 fps. I tried changing the Project settings choosing various values of the video profile-

1080i 29.97 resulted in incomplete images having grid-like black gaps while the bottom 100 rows are black.
1080i 30 resulted in similar images but fewer rows in the bottom are black

1080p 29.97 resulted in images that do no have the grid of black gaps but only the top 400 rows of pixels are correct. The rest are black
1080p 30 resulted in similar behavior as 1080p 29.97

I'm curious as to whether it is detecting my movie clip correctly in the first place (1920x1088 instead of 1920x1080).

Any ideas?

I also ran into the "incompleteness" problem with some of the png files I exported. It's not consistent, so I haven't been able to trouble shoot.

"I'm curious as to whether it is detecting my movie clip correctly in the first place (1920x1088 instead of 1920x1080)."

Yes, your Canon video res is 1920x1088. But the bottom 8 lines are cropped off. Useable 8 lines theoretically. :-)

If you can render fine to a video like MPEG-2 or MPEG-4, then it is a problem with PNG output in your version of ffmpeg.

is there any way to retain the alpha channel in the exported pngs

No, sorry, that has not been implemented.

thanks for the reply!

Hello,

it's possible to export sequence image in TIFF and not PNG ?

yes to TIFF

Hi there,

thanks for implementing export to tiff sequence. When I enter in the output file as //_%05d.tif it always creates a zero-byte file called '_%05d.tif' and then starts to create the correctly zero padded tif files, is this by design?

Also is there a way to have the numbering start from an absolute position if you are rendering a selected zone rather than always starting at 1? I was having a major problem with wipe transitions being reset to weird dissolves and had to render the timeline in pieces. I didn't realize that if you render a selected zone it will always start at frame 1 and overwrite files if you are not careful about giving it a different basename before the file number. If there was a way to tell the renderer to use an absolute frame position in the timeline that would be very helpful.

thanks and great job on making this program better!
z