On Monday, 30 March 2015 16:48:08 UTC-7, Chris Angelico wrote: > On Tue, Mar 31, 2015 at 8:22 AM, <duderino> wrote: > > rotimg = img.rotate(270) # rotation is counterclockwise > > Unless the 90 and 270 cases are documented as being handled specially, > I'd look for a dedicated function for doing those changes. A quick > perusal of the docs showed up this: > > http://pillow.readthedocs.org/en/latest/reference/Image.html#PIL.Image.Image.transpose > > Is that any better, or is that doing the exact same thing as rotate()? > > By the way: > > > The black & white only device (1024 (X) x 1280 (Y)) expects the compressed > > data based on portrait mode, i.e. 8 pixels combined into one bytes for 1280 > > rows of 128 bytes. > > > > This sounds to me like the fax standard. I wonder, can you make use of > a TIFF library to do some of your work for you? > > ChrisA
According to the docs rotate & transform can both be used and should do the same in my case - but they are not. rotimg = img.transpose(Image.ROTATE_270) print img.getbbox() print rotimg.getbbox() gives (0, 0, 1280, 1024) (0, 0, 1024, 1280) while rotimg = img.rotate(270, 0, 1) print img.getbbox() print rotimg.getbbox() gives (0, 0, 1280, 1024) (1, 1, 1025, 1281) Neither one produces good output when the compression is applied. Don't think it's related to fax standards - it's proprietary (E-Ink Tile) -- https://mail.python.org/mailman/listinfo/python-list
