djv_convert and tiff: unable to compress file

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Hans Mill
2009-07-27
2013-05-04
  • Hans Mill

    Hans Mill - 2009-07-27

    Hi,
    first of all the djv is getting better and better.

    But I have a problem with djv_convert. I want to save and compress large tiff files like 7k x 7k and a file size around 300 MB e.g. The problem is that after the conversion I got a black picture. Can someone help me?

     
    • Mikael Sundell

      Mikael Sundell - 2009-07-28

      It seems to be a problem with the image size. I'm able to reproduce here, will try to find out why this occurs and post an update - Mikael

       
    • Hans Mill

      Hans Mill - 2009-07-29

      Thanks a lot!

       
    • Mikael Sundell

      Mikael Sundell - 2009-07-29

      The problem with the image size you are experiencing is due to hardware limitations for maximum texture size, almost all image processing in DJV is based on OpenGL and therefore is also limited by the graphics card and its available memory.
      Unfortunately there is currently no support for texture tiling or software based rendering so large textures will be a tough one to solve.
      It would be interesting to exam this a bit further, what platform and hardware are using with DJV? Mikael

       
    • Hans Mill

      Hans Mill - 2009-07-30

      I am using an Intel Xeon 3,6Ghz Dual Core with 8GB RAM and a 512MB Nvidia Quadro FX 4500. OS is Windows XP 64bit.

       

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