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[real huge difference]

Ok, maybe not lossless, but I just compared the difference with the "old" and "new" scripts, and there is a real huge difference in quality in favor of the new... huge.

Ow, I thought it had something to do with my changes to the script.... this colorspace thing... but not.. they were already there...

I removed those lines, and things seem just working fine, and indeed a bit faster.

I will add these changes to my changed script and reupload...


(Ok, an ugly way, and raw would be better, sure, but i will have to work with the equipment (cf cards)  i have, so the avisynth/virtualdub will have to do. And the script got a bit better now )

Forgive me my ignorance here.... Me simple, me think tif better than jpg.

The splitting normally extracts jpg's. With my script there are tifs. Do the jpg's have another color space as the tifs?

Tifs are then fused into png's. Do the tifs have another colorspace as the png's?

Is your conclusion that using jpg's throughout the process will give a better result as the tif-png version?

I don't know about color space conversions, I just think that tif's are better than jpg's to use, since jpg's are lossy, and tifs are not.

(I tested the difference between the jpg's and tifs (by compressability in photoshop) and the tifs do contain more image information)

And that is the difference between my version of the scripts and the ones used in the wiki.

The color space conversions from ffmpegsource2 YV12 to RGB then conversion back to YV12 is not lossless and totally pointless. You could remove it and save a bit of quality and speed.

Ah, my mistake, I meant Virtualdub..... Virtualdub cannot import tiff sequences....

Yes it can

[Update:]

Hi,

just started to use the Magic Lantern Firmware for HDR Video....

I use the scripts and software from http://wiki.magiclantern.fm/userguide#hdr_video

I saw that these script use JPG as intermediary files...

I have altered the scripts, so lossless file types are used, tif for the Light/Dark alternating frames, tif is a bit faster than jpg, but large files ofcourse, png was too slow.

Avisynth Virtualdub cannot use tif file sequences, but can use png, so enfuse "fuses" the tifs into 24 bit lossless png's, a bit slower, but hey, lossless...

Quality should be a bit better with this workflow...

Its easy to alter the scripts yourself, but you can download the altered scripts here:

http://gpwrite.com/magic-lantern-firmware-hdr-video-script-eos-5d/

Update: In addition color space conversions have been removed (see thread below) and the quality of the output has improved quite a lot.