Tiffs can be RGB as planar or chunky. Planar is stored as all the red; then all the green; then all the blue. Chunky is stored as a pixel’s RGB; then the next pixel’s RGB; then the next pixel’s RGB; etc. Chunky also pays attention to “bits per sample”, and “samples per pixel” (3 for RGB). I’ve never heard of a tiff chunky format that goes BGR or even RBG or anything that deviates from R first; then G; then B last.
On 17 January 2012 22:49, Rogier Wolff <[email protected]>wrote: > > On Tue, Jan 17, 2012 at 03:11:18PM +0100, Harry van der Wolf wrote: > > The option to pass is --bgr (for: swap RGB order) > > It only happens with tiffs as far as I know. > > In case someone wants to look into this before I do: > > My "working theory" is that many tiffs come with the color planes in > RGB order, and multiblend ignores that and assumes that the first is > R, the second G, and the third B. The tiffs that go wrong happen to > have BGR order in the file. (*) > > George, you're welcome to compress and send me one of your 16-bit > tiffs so that I can investigate this theory.... > > Roger. > > (*) Or things could be exactly the other way around. Some program > wrote them out BGR and tagged them RGB, and Multiblend believes the > tags... > > -- > ** [email protected] ** http://www.BitWizard.nl/ ** +31-15-2600998 ** > ** Delftechpark 26 2628 XH Delft, The Netherlands. KVK: 27239233 ** > *-- BitWizard writes Linux device drivers for any device you may have! --* > The plan was simple, like my brother-in-law Phil. But unlike > Phil, this plan just might work. > > -- > You received this message because you are subscribed to the Google Groups > "Hugin and other free panoramic software" group. > A list of frequently asked questions is available at: > http://wiki.panotools.org/Hugin_FAQ > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/hugin-ptx > -- *Ian Tindale* -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx
