[Insight-users] Performance of writer->Update()

[Shlomo Kashani]

Hi,
I am reading a 24Bit PNG file with a resolution of 768x576 and size of
approximately 0.5MB, applying a canny edge detector on it and then writing
the edge mapped image to the file system. The later part consumes on average
1.1 seconds (oevr a sequence of 100 write operations) even tough the
resulting image size is 18KB. Are these the expected writing times on a 2GH
CPU machine?

..\..\release>IrisRecognition.exe 056R_3.png  056R_3_canny.png 50

Canny done; Time = 0.063
Writer done; Time = 1.109

Thank you,

Shlomo. 
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