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May 2004
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2004.06.01 11:50 "Re: large TIFF - two alternatives", by John Aldridge
I wrote: > This is a serious question, and not intended as a flame: if I need to > support a new file format to get >2/4GB support, why wouldn't I just use > PNG? ...and got several informative answers which basically fall in to two camps: (a) So PNG can handle images > 4GB. That's precious little use without the ability to do random access to parts of the image. Having thought about it a bit, I agree entirely. (b) Tiff can handle <data-format-of-choice-for-my-application>. This is both a strength /and/ a weakness. The fact that Tiff has so many different ways of storing data is handy for the writer, but a real pain for the reader. Maybe PNG isn't flexible enough, but Tiff is so flexible that supporting the full spec is a lot of work. -- Thanks, John