That looks like a bug.
To help speed this process up, do you suppose you could send me (privately) an
example exr file that exhibits this behavior? I'll try to replicate on my end,
but I'm not sure I understand exactly what properties of that exr trigger the
bug.
-- lg
On Dec 17, 2012, at 6:11 PM, Andrew Wood wrote:
> Thanks for taking a look for me! That certainly makes sense that it works
> like that. I can confirm it now works for me when I do
> oiiotool /var/tmp/too.exr --ch 0,1,2 --colorconvert linear sRGB -o
> /var/tmp/test.jpg
>
> Perhaps I need a different thread for this, but it looks like --croptofull is
> not playing along nicely. When I do:
> oiiotool /var/tmp/too.exr --ch 0,1,2 --croptofull --colorconvert linear sRGB
> -o /var/tmp/test.jpg
> after about a minute it comes back to me, saying "Maximum supported image
> dimension is 65500 pixels." If I understand correctly, --croptofull should
> look at this exr,
>
> file format version: 2, flags 0x0
> channels (type chlist):
> A, 16-bit floating-point, sampling 1 1
> B, 16-bit floating-point, sampling 1 1
> G, 16-bit floating-point, sampling 1 1
> R, 16-bit floating-point, sampling 1 1
> depth.Z, 16-bit floating-point, sampling 1 1
> compression (type compression): zip, individual scanlines
> dataWindow (type box2i): (-40 -24) - (1960 1102)
> displayWindow (type box2i): (0 0) - (1919 1079)
>
> and crop it to the displayWindow which is certainly small enough (and if I
> don't use croptofull, I don't get the Maximum image dimension error)
>
> is there something simple I'm specifying incorrectly here too?
>
> thanks for your help!
> Andrew
>
>
>
>
> Oh, I think I understand what is happening. oiiotool actually does its work
> in the sequence that you specify it, so:
>
> oiiotool my_input.exr \ # read my_input.exr, that's now the
> current image
> -o output.jpg \ # write the current image as a
> JPEG -> ERROR
> -ch R,G,B \ # replace current image with
> one that's the R,G,B of the old current
>
> So instead if you said
>
> oiiotool my_input.exr -ch R,G,B -o output.jpg
>
> it should all work properly, in that you are reducing to 3 channels before
> saving a JPEG file (which doesn't support >3 channels).
>
> If you also tried --croptofull after the output, that would explain why it
> also did not work as expected.
>
>
>
>
> On Dec 12, 2012, at 9:42 AM, Andrew Wood wrote:
>
> > Hey all,
> >
> > having some problems converting an exr to jpg
> >
> > I think I may be misunderstanding how --ch works (built 1.1.2) --my command
> > looks something like this:
> >
> > >oiiotool /var/tmp/my_input.exr -o /var/tmp/output.jpg --ch R,G,B
> > oiiotool ERROR: jpeg does not support 5-channel images
> >
> > in case it helps, the header of the exr looks like this:
> > file format version: 2, flags 0x0
> > channels (type chlist):
> > A, 16-bit floating-point, sampling 1 1
> > B, 16-bit floating-point, sampling 1 1
> > G, 16-bit floating-point, sampling 1 1
> > R, 16-bit floating-point, sampling 1 1
> > depth.Z, 16-bit floating-point, sampling 1 1
> > compression (type compression): zip, individual scanlines
> > dataWindow (type box2i): (-85 -114) - (2139 1219)
> > displayWindow (type box2i): (0 0) - (1919 1079)
> > lineOrder (type lineOrder): increasing y
> > nuke/nkscript (type string):
> > "/dd/shows/DEVTD/SR/9999/user/work.awood/nuke/submission.nk"
> > nuke/node_hash (type string): "8dccfb2b2dc60e20"
> > pixelAspectRatio (type float): 1
> > screenWindowCenter (type v2f): (0 0)
> > screenWindowWidth (type float): 1
> >
> > (also, small point, I was hoping to crop down to displayWindow and ignore
> > the dataWindow. I tried --croptofull, but that didn't have an effect. am
> > I misunderstanding that one too?)
> >
> > thanks in advance!
> > Andrew
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--
Larry Gritz
[email protected]
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