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Old 11th May 2008, 22:30   #21  |  Link
Chainmax
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I second that request, I'd like to try this filter out on some digicam footage and compare it to HDRAGC.
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Old 12th May 2008, 01:10   #22  |  Link
NormanBates
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I found Autolevels v0.3 on my hdd and uploaded it for you.
Here is the link:
http://www.sendspace.com/file/7i6yx0
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Old 12th May 2008, 01:26   #23  |  Link
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Quote:
Originally Posted by NormanBates View Post
I found Autolevels v0.3 on my hdd and uploaded it for you.
Here is the link:
http://www.sendspace.com/file/7i6yx0
This does seem the latest version!
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Old 12th May 2008, 03:49   #24  |  Link
AlanHK
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Quote:
Originally Posted by unskinnyboy View Post
Does anyone have a working version of the latest version of Autolevels? If so, can they upload it somewhere, please? The previous URL is dead, and this don't seem to be hosted anywhere else.
Attached.

But as you see above, I didn't have much luck with it.
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File Type: rar autolevels0.3.rar (15.9 KB, 1706 views)
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Old 12th May 2008, 04:09   #25  |  Link
unskinnyboy
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AlanHK, Try the version NormanBates linked above. It works fine for me. Maybe yours is a corrupted version?
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Old 12th May 2008, 04:23   #26  |  Link
AlanHK
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Quote:
Originally Posted by unskinnyboy View Post
AlanHK, Try the version NormanBates linked above. It works fine for me. Maybe yours is a corrupted version?
They're identical.
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Old 12th May 2008, 04:52   #27  |  Link
unskinnyboy
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Quote:
Originally Posted by AlanHK View Post
They're identical.
OK. Your attachment was unapproved (still is) when I posted my earlier reply, so I wasn't sure if it was. Not sure what your issue is then, sorry. Sure is specific to just you though. Works for me on my current Vista machine, and it used to work on my previous XP machine too (before it crashed a few months ago, that is).
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Old 7th August 2008, 00:13   #28  |  Link
chriszxl
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links did not work............
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Old 9th August 2008, 07:30   #29  |  Link
NormanBates
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Again:-)
I found Autolevels v0.3 on my hdd and uploaded it for you.
Here two links:
http://www.sendspace.com/file/z16kmr
http://rapidshare.com/files/13597845...ls0.3.zip.html
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Old 19th August 2008, 01:58   #30  |  Link
Sharktooth
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direct download: http://www.webalice.it/f.corriga/misc/autolevels0.3.zip
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Old 13th September 2008, 01:14   #31  |  Link
dreamy83
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URL is dead can some1 upload autolevels again
thanks
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Old 13th September 2008, 02:04   #32  |  Link
Nightshiver
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No it's not. Use the direct download link from Sharky, it still works.
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Old 13th September 2008, 03:01   #33  |  Link
AlanHK
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The file attached to my post above is okay.
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Old 14th September 2008, 23:13   #34  |  Link
IYG
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What is this filter's advantage?
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Old 19th May 2009, 21:48   #35  |  Link
carlmart
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I would like to know what are the parameters to load on autolevels. The link is dead.

Any suggestions?
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Old 19th May 2009, 22:09   #36  |  Link
sidewinder711
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Here you go:

http://www.mediafire.com/?ywjkgzmclgy

Cheers!
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Old 3rd August 2009, 21:03   #37  |  Link
EugenSU
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Something wrong occurs to colours after the filter. The picture is constantly painted in any colour. Has submitted on an input a black-and-white picture. On an exit has received floating displacement of colours. U and V components constantly float. I work with normal YUY2.
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Old 29th October 2010, 22:52   #38  |  Link
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The wiki

http://avisynth.org/mediawiki/External_filters

says that autolevels works on YV12, YUY2, RGB32, RGB24 format pixels.

Certainly it works on YV12. If I convertToRGB24() before autolevels, it still works, but the effect is small. If I convertToRGB32() first I don't see any difference from the unprocessed video.

But my biggest problem is that ConvertToYUY2().autolevels() produces a very saturated purple video (it might be different on different clips, but this is what I'm seeing).

Is the wiki simply wrong?

I've worked around it with this:

(orig is in YUY2 format)
tmp = orig.convertToYV12().autolevels().convertToYUY2()
orig = MergeLuma(orig,tmp)

but if there is a more direct way to operate on YUY2() without the two conversions, I'd like to know.

Last edited by frustum; 30th October 2010 at 00:03. Reason: (fixed a typo)
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Old 30th October 2010, 06:27   #39  |  Link
IanB
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Ouch! Yes this filter really only has a code path for YV12, although it should give correct results for RGB24 and near correct results for RGB32. It will be using the min(a, r, g, b) and the max(a, r, g, b) for its determinations, so the contents of the A channel can upset things. Unfortunately it will just make a mess of YUY2 chroma.

Given the filter just ploughs through RowSize bytes of data per line, you might get away with this :-
Code:
(orig is in YUY2 format)
tmp = orig.GreyScale().autolevels() # make all chroma bytes 128
orig = MergeLuma(orig, tmp) # Overlay new luma bytes
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Old 30th October 2010, 08:37   #40  |  Link
frustum
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Ian, your suggestion works well enough for the one scene I've tried it on. Thanks for the tip. Also thanks for the work you are doing on avisynth!

I've just had a look at the source for the autolevels plugin. I know nothing about avisynth data structures and internals, but it assumes the pixel data is planar. Won't it just treat y,u,v as three luma values? So if the image is very dark, it will think there are a bunch of y=128 pixels after performing the GrayScale() conversion, won't it?

Overall, it seems wrong to say autolevels() supports anything but YV12 (except in special cases) right now.
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