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From: David McClain <dbm@refined-audiometrics.com>
To: caml-list@inria.fr
Subject: HLVM stuff
Date: Sun, 27 Sep 2009 10:43:24 -0700	[thread overview]
Message-ID: <BB742A9E-F98D-482D-8DA8-B3A2C5F71CD4@refined-audiometrics.com> (raw)

... as a specific example, I remember dealing with stacks of images  
taken from an infrared imaging sensor -- perhaps 256 images, each of  
which is, say 512 x 512 pixels. I needed to obtain median pixel values  
from the stack and produce one "median image", as well as perform  
thresholding, masking, perhaps some dilation and erosion. And, also  
get the image 2-D FFT image.

So there we are dealing with an aggregate of 2^26 8-bit pixel values.  
Surely, the majority of time is spent processing pixels, and not  
dispatching over some polymorphic type...

Dr. David McClain
dbm@refined-audiometrics.com




             reply	other threads:[~2009-09-27 17:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-27 17:43 David McClain [this message]
2009-09-27 19:25 ` [Caml-list] " Jon Harrop
2009-09-27 21:58   ` David McClain
2009-09-27 23:14     ` Jon Harrop
2009-09-28  0:35       ` David McClain
2009-09-28  1:25         ` Jon Harrop
2009-10-13 22:18         ` Jon Harrop
  -- strict thread matches above, loose matches on Subject: below --
2009-09-27 17:33 David McClain

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