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Code Issues Releases Wiki Activity

resizer: Support re-orienting photo from EXIF data.

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This commit is contained in:
Stuart Longland 2018-04-19 10:37:50 +10:00
parent 2405c76c0f
commit fd955f1f7c
Signed by: stuartl
GPG Key ID: 6AA32EFB18079BAA
1 changed files with 19 additions and 3 deletions
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22
tornado_gallery/resizer.py
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@ -59,7 +59,7 @@ class ResizerPool(object):
@coroutine
def get_resized(self, gallery, photo,
width=None, height=None, quality=60,
rotation=0.0, img_format=None):
rotation=0.0, img_format=None, orientation=0):
"""
Retrieve the given photo in a resized format.
"""
@ -122,7 +122,7 @@ class ResizerPool(object):
self._mutexes[mutex_key] = mutex
resize_args = (gallery, photo, width, height, quality,
rotation, img_format.value)
rotation, img_format.value, orientation)
try:
self._log.debug('%s/%s waiting for mutex',
gallery, photo)
@ -181,7 +181,7 @@ class ResizerPool(object):
pass
def _do_resize(self, gallery, photo, width, height, quality,
rotation, img_format):
rotation, img_format, orientation):
"""
Perform a resize of the image, and return the result.
"""
@ -209,6 +209,22 @@ class ResizerPool(object):
# Open the image
img = Image.open(open(orig_node.abs_path,'rb'))
# Credit: http://piexif.readthedocs.io/en/stable/sample.html
if orientation == 2:
img = img.transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 3:
img = img.rotate(180)
elif orientation == 4:
img = img.rotate(180).transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 5:
img = img.rotate(-90).transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 6:
img = img.rotate(-90)
elif orientation == 7:
img = img.rotate(90).transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 8:
img = img.rotate(90)
# Rotate if asked:
if rotation != 0:
img = img.rotate(rotation, expand=1)