If you don't do the --colorcorrect, but you do everything else, do you still get something garbled?
On Tue, Oct 4, 2016 at 3:42 PM, Eric Tabellion < [email protected]> wrote: > Feel free to ignore this request entirely on the maketx side. I realize > it's a version of maketx I modified weeks ago, adding a "--dither" > command-line option (a seemingly trivial addition when looking at the > oiiotool code). > > The request for oiiotool holds though. I was able to repro the issue with > a fresh build of the freshly pulled master branch and Release-1.7.7 tag. > > On Tue, Oct 4, 2016 at 2:41 PM, Eric Tabellion < > [email protected]> wrote: > >> I'm using OpenImageIO 1.6.13 but using a slightly modified version with >> our own build scripts. Let me try a stock build with a more recent version. >> >> On Tue, Oct 4, 2016 at 1:37 PM, Larry Gritz <[email protected]> wrote: >> >>> Weird. Here is the the last email I sent, right here on the list. But my >>> previous two replies have not shown up in my inbox. >>> >>> >>> On Oct 4, 2016, at 1:27 PM, Larry Gritz <[email protected]> wrote: >>> >>> The mail server from openimageio.org seems at the moment to be, if not >>> broken, then at least significantly delaying things in the queue. >>> >>> So resending with Eric directly CC'd so he doesn't think I'm ignoring. >>> >>> I'm having trouble reproducing. Which version of OIIO are you using? >>> >>> >>> >>> >>> On Mon, Oct 3, 2016 at 11:40 AM, Eric Tabellion < >>> [email protected]> wrote: >>> >>>> Hi, >>>> >>>> I'm trying to convert grayscale (half) float linear .exr images into >>>> 8-bit sRGB render-ready .tx files, while using dithering in the process >>>> with --dither. >>>> >>>> When the input image is 3-channel color data the conversion works fine. >>>> However when the image is single channel, --dither seems to choke up a >>>> garbled image. Converting the image from 3-channel down to single channel >>>> at the same time as using --dither won't work either. >>>> >>>> For example either of these two commands below will produce garbled >>>> images using RGBA inputs: >>>> >>>> oiiotool input.exr --ch "R" --dither --colorconvert linear sRGB -d >>>> uint8 -o output.tif >>>> >>>> maketx input.exr --nchannels 1 --dither --colorconvert linear sRGB -d >>>> uint8 --oiio --compression zip -o output.tx >>>> >>>> I'm trying to get this all done in one maketx pass, but so far the only >>>> way I got this to work is doing this: >>>> >>>> oiiotool input.exr --dither --colorconvert linear sRGB -d uint8 -o >>>> tmp.tif >>>> maketx tmp.tif --nchannels 1 --oiio --compression zip -o output.tx >>>> >>>> This doesn't work though if the input image is already single-channel. >>>> Anyone else can reproduce this ? Could this be a --dither bug when >>>> dithering single channel images? >>>> >>>> Thanks! >>>> Eric >>>> >>>> -- >>>> --------------------------------------------------------------- >>>> Eric Tabellion [email protected] >>>> R&D Staff (650)-562-9146 >>>> PDI/Dreamworks >>>> >>>> >>>> _______________________________________________ >>>> Oiio-dev mailing list >>>> [email protected] >>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>>> >>>> >>> >>> >>> -- >>> Larry Gritz >>> [email protected] >>> _______________________________________________ >>> Oiio-dev mailing list >>> [email protected] >>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>> >>> >>> -- >>> Larry Gritz >>> [email protected] >>> >>> >>> >> >> >> -- >> --------------------------------------------------------------- >> Eric Tabellion [email protected] >> R&D Staff (650)-562-9146 >> PDI/Dreamworks >> >> > > > -- > --------------------------------------------------------------- > Eric Tabellion [email protected] > R&D Staff (650)-562-9146 > PDI/Dreamworks > > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > > -- Larry Gritz [email protected]
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