Re: Getting image data

[Tim Jones <tjmac@tolisgroup.com>]

On Mar 31, 2009, at 10:50 AM, Joe Strout wrote:

> Tim Jones wrote:
>
> > > The images (always jpegs) are available on a web site.
> > Yes, but to use them, you need to copy the (at least temporarily)  
> > to the local system.  You can then access them to determine the  
> > properties.  So in that case, they become disk files.
> But there's no need for that.  Open a socket, get the first few  
> bytes (for suitable values of "few"), and parse them to obtain the  
> desired information (image width and height).  It seems very  
> wasteful to involve the disk here.
My point was that the data would be coming to the local machine if  
you have any plans on touching it at all, so whether you grab the  
parameters directly from the stream as Joe suggests or copy the file  
to the local disk.
Tim


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