[Insight-users] How to read/write multiple images

[Luis Ibanez]

Hi Ron,

There is no a real fundamental problem preventing us
for implementing streaming in readers.  It is simply
very tricky to get it working right for all the readers.
So far we have been busy enough with multicomponents,
pixel types, multidimensions, endiannes, file series...

--

When your reader is invoked, it will receive a request
for a specific "RequestedRegion", the reader has to
figure out how to get the pixel data corresponding to
this requested region.

You can probably manage to do it right usinng the
equivalent of: seekg(), tellg() and read( N bytes )
operations.



    Luis



-------------------------
Ron Inbar wrote:
> Hi Luis,
> 
> I was going over your replies again, and I came across a troubling fact:
> 
> 
>>No image reader is doing streaming at this point.
>>This is something we have to work on...
> 
> 
> I need to implement my own ImageIO subclass.
> I will probably be reading my data from a single file, but I need to read
> only a sub-range of z-slices at a time.
> I would like to know what the fundamental problems are in implementing a
> reader that can do that.
> 
> Thanks in advance,
> 
> Ron
> 
> 
> 
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