[magick-users] Magick++ with QT

[Manoj Agrawal]

Hi,

I tried setting the environment variable MAGICK_DEBUG to cache and to my 
surprise it took even more time!!! Here is the log file produced for the 
same image (1024x768) before and after setting the environment variable:

*Before*
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Start converting Image to Pixmap:16:23:27.781
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Writing to blob:16:23:27.796
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Creating bytearray:16:23:29.375
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Loading pixmap from bytearray:16:23:29.375
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
End converting Image to Pixmap:16:23:29.875

*After*
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Start converting Image to Pixmap:16:31:23.609
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Writing to blob:16:31:23.609
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Creating bytearray:16:31:56.843
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
Loading pixmap from bytearray:16:31:56.843
ConvertImageToPixmap (C:/Sample Images2/Rajasthan Royals Muscot.jpg): 
End converting Image to Pixmap:16:31:57.328

You can notice the time writing image to Blob is approx. 1:400 secs 
before making the setting and it is approx 23 secs after making the 
setting!!!
Please advice, how can I improve this time consuming process??

Regards,
Manoj

duc.sequere.aut.de.via.decede at imagemagick.org wrote:
>> while writing image to Blob is too slow
>>     
>
> Odd, we read and write 4096x4096 images in sub-second time.
> If you get a chance, download ImageMagick 6.4.1-2 Beta from
> ftp://magick.imagemagick.org/pub/ImageMagick/beta.  This pending release
> has a refactored pixel processor that is probably as fast as its ever
> going to get.  Also, set the environment variable MAGICK_DEBUG to "cache"
> to ensure the pixel cache is in memory, not disk.  A disk pixel cache
> is expected to be slow.
>
>
>   

-- 
Manoj Agrawal

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