On Thu, 19 Jan 2017, Daniel Kahn Gillmor wrote:
Package: graphicsmagick
Version: 1.3.25-7
Severity: normal
gm(1) says:
-operator channel operator rvalue[%]
apply a mathematical, bitwise, or value operator to an image
channel
But:
0 dkg@alice:~$ gm convert /usr/share/pixmaps/debian-logo.png -operator all
invert '100%' foo.png
gm convert: Unrecognized operator (-operator).
1 dkg@alice:~$
Somehow this functionality is missing from the compiled build!
The 'invert' keyword sounds useful but the GraphicsMagick
documentation specifies to use 'Negate' for this purpose.
This is not a bug.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/