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bug#67149: 30.0.50; save rotated image in image-mode
From: |
Peter Münster |
Subject: |
bug#67149: 30.0.50; save rotated image in image-mode |
Date: |
Thu, 21 Mar 2024 19:12:55 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
On Mon, Nov 13 2023, Peter Münster wrote:
> This is a feature request. I would like to rotate an image by 90° and
> save the result without using image-dired. It seems, that "i r" and "s
> r" change only the display...
>
> Could somebody add this feature please?
Hi,
Here is my solution:
--8<---------------cut here---------------start------------->8---
(defun pm/img-rotate (dir)
"Rotate active image to direction DIR."
(call-process (concat "rot" dir ".sh") nil "*Messages*" nil
(buffer-file-name))
(revert-buffer nil t))
(defun pm/img-rotate-left ()
"Rotate active image to the left."
(interactive)
(pm/img-rotate "left"))
(defun pm/img-rotate-right ()
"Rotate active image to the right."
(interactive)
(pm/img-rotate "right"))
(define-key image-map "l" 'pm/img-rotate-left)
(define-key image-map "r" 'pm/img-rotate-right)
--8<---------------cut here---------------end--------------->8---
rotleft.sh and rotright.sh are using jpegtran for the rotation.
But there is one problem, that bothers me: When there is something like
"Orientation: Rotate 180" in the Exif metadata, the display is not
updated after the rotation.
My workaround: "exiftool -Orientation= image.jpg" and then restart Emacs.
What would be a cleaner solution please?
TIA for any help,
--
Peter
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