Paul Tansley wrote:

> Sorry for the lack of trimming in my reply.

Paul, Shangara et al.

I think that this topic is getting well beyond the interest of how it
started out... however.

90 deg rotating either clockwise or anti-clockwise is a mathematical matrix
(1,0), (0,1). It is by it's very definition non-degrading (read multiply by
one).

So all software that rotates by 90 deg CW or CCW is lossless. Only
non-multiples of 90deg will be lossless.

HTH,

Michael

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