Profile, imwrite and __magick_write__

[ijourneaux]

I am using Octave 3.7.2+ VS2010 and was trying out the profiling
functionality to see if I could improve the performance of the Octave
routine I am using.

It turns out that most of the time is consumed in imwrite and the routine it
calls __magick_write__.

Is there anything I can do to improve the performance? I am reading image
files, processing them and saving them out again. I was surprised that the
__magick_read__ was substantially less than the __magick_write__.

Take Care

octave-qt.exe:5> profshow(T)
   #         Function Attr     Time (s)        Calls
----------------------------------------------------
 122 __magick_write__           360.592           17
  93            conv2            24.302          109
   6        binary ==            10.697         2524
 123          bwlabel            10.697            7
  16             find             9.344         1005
  90            uint8             5.259           92
  86  __magick_read__             3.941           11
 145         applylut             2.101           22
  29         binary +             0.930         2677
  38              max             0.907         1239
 132        binary .*             0.610           10
  28         binary *             0.564         4704
  23         binary -             0.462         4701
   2        binary !=             0.421         1430
 124           double             0.329           90
  37              abs             0.326           84
   5         binary >             0.301         3490
  19               cd             0.280           15



--
View this message in context: 
http://octave.1599824.n4.nabble.com/Profile-imwrite-and-magick-write-tp4661277.html
Sent from the Octave - General mailing list archive at Nabble.com.