[Tig] Re: GraphicsMagick and DPX

Bob Friesenhahn bfriesen
Mon Jul 25 04:45:51 BST 2005

The latest GraphicsMagick development snapshot (1.2.020050721 or 
later) supports reading and writing DPX files with YCbCr encoding. 
Rec 601 and Rec 709 luma are supported.  4:4:4 and 4:2:2 encoding are 
supported.  Alpha is supported.

The only deficiencies I am currently aware of are:

  o Below-black and above-white is clipped since YCbCr is transformed
    to full-range RGB rather than Rec 709 "studio" RGB.  A later
    version may offer a "studio" RGB mode.

  o 4:2:2 subsampling is slow.

Development snapshots may be downloaded from 

Currently only source packages are available for this snapshot. 
Windows binaries are pending.

Please let me know about any problems encountered.

Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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