> On Fri, 2008-02-08 at 21:01 -0500, Carey Fisher wrote:
>> I'm using Irfanview (www.irfanview.com) to work with some 
>> photos.
>> Converting a jpeg of about 1MB, 800x600, to an 
>> uncompressed
>> tiff gives me over 11MB.  Even a LZW compressed tiff is 
>> over 8MB.
>> Is this right?  I know tiffs are large but this seems 
>> excessive.


Using Irfanview I get 108 kB for a JPG 85 saved files and 
1.87 MB using TIF.
Sounds like something is very wrong.

Taking the 1.7 MB Toreka.jpg image I mentioned recently and 
saving as TIF at 3000x2000 I get 18 MB.
Scale to 800x600 and save and its 2.9 MB.

All in IrfanView.
Suggests summat aglae in what you are doing.

Even saving at JPG 100% gives 3.1 MB.

BMP gives 18 MB - about same as TIF

If you are starting in JPG the changing to TIF makes very 
little sense unless you have some special need for the TIF 
format per se.

If you send me the original I could try converting it and 
see what I get.




            Russell

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