You can rotate your images in hugin itself so you don't have to rotate them afterward, but that doesn't answer you question.

In GIMP click on the "Image" menu item and go down to "Transform" and select which direction you would like to rotate or flip the image.  With that being said you don't want to do it like that since it will add some generation loss to the image.  Dark table might have a lossless rotator, but it'll most likely add some loss as well if you re-save it as a JPEG.

What you'll want to do is use a lossless JPEG rotator.  There was a handful of them on the system, my favorite is to use Gwenview.  Once you are viewing your image with Gwenview select the "Edit" menu item and go down to rotate left/right item.  Once you have the image rotated like you want it make sure to click on save button that will appear at the top of the image's display window.  Doing it with gwenview will give you a perfect image without any loss.

You can do the same thing in Digikam by clicking the little rotation icon at the top of the thumbnail or image

Brian Cluff


On 08/19/2016 12:43 PM, Michael wrote:
One of my indoor panoramas worked out except it is vertical. So I opened it up in Gimp and rotated it. The portion that is where the original image was is rotated and visible. There is a gray chekerboard where the image was before I rotated it. I guess this means it didn't rotate the canvas. How do you rotate the canvas as well?

--
:-)~MIKE~(-:


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