2005.05.25 09:52 "[Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Kelvin Zhong

2005.05.26 19:43 "[Tiff] Re: Byte Order rules", by Chris Cox

It doesn't require a certain word size.

Windows prefers everything as BGR, while other OSes prefer RGB. Anything that is a multiple of 8 bits is subject to byte order rules (I have yet to see a 96 bit word CPU, either - but extended precision floating point is also subject to byte order).

but BGR and RGB isn't a byte-order issue, like the Intel/Motorola thing.

Actually, it is -- that's why Microsoft specified things that way.

well, let me restate that: i'd be very surprised to learn that Microsoft went with BGR because the early Intel CPUs cared about the order of the bytes in certain 24-bit data structures.

The CPU doesn't care.

But if you have byte order rules, you need to be consistent about applying them.