def exif_orientation(im):
"""
Rotate and/or flip an image to respect the image's EXIF orientation data.
"""
try:
exif = im._getexif()
except Exception:
# There are many ways that _getexif fails, we're just going to blanket
# cover them all.
exif = None
if exif:
orientation = exif.get(0x0112)
if orientation == 2:
im = im.transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 3:
im = im.rotate(180)
elif orientation == 4:
im = im.transpose(Image.FLIP_TOP_BOTTOM)
elif orientation == 5:
im = im.rotate(-90).transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 6:
im = im.rotate(-90)
elif orientation == 7:
im = im.rotate(90).transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 8:
im = im.rotate(90)
return im
python类FLIP_LEFT_RIGHT的实例源码
def _CorrectOrientation(self, image, orientation):
"""Use PIL to correct the image orientation based on its EXIF.
See JEITA CP-3451 at http://www.exif.org/specifications.html,
Exif 2.2, page 18.
Args:
image: source PIL.Image.Image object.
orientation: integer in range (1,8) inclusive, corresponding the image
orientation from EXIF.
Returns:
PIL.Image.Image with transforms performed on it. If no correction was
done, it returns the input image.
"""
if orientation == 2:
image = image.transpose(Image.FLIP_LEFT_RIGHT)
elif orientation == 3:
image = image.rotate(180)
elif orientation == 4:
image = image.transpose(Image.FLIP_TOP_BOTTOM)
elif orientation == 5:
image = image.transpose(Image.FLIP_TOP_BOTTOM)
image = image.rotate(270)
elif orientation == 6:
image = image.rotate(270)
elif orientation == 7:
image = image.transpose(Image.FLIP_LEFT_RIGHT)
image = image.rotate(270)
elif orientation == 8:
image = image.rotate(90)
return image
def getmask2(self, text, mode="", fill=Image.core.fill):
size, offset = self.font.getsize(text)
im = fill("L", size, 0)
self.font.render(text, im.id, mode=="1")
return im, offset
##
# Wrapper that creates a transposed font from any existing font
# object.
#
# @param font A font object.
# @param orientation An optional orientation. If given, this should
# be one of Image.FLIP_LEFT_RIGHT, Image.FLIP_TOP_BOTTOM,
# Image.ROTATE_90, Image.ROTATE_180, or Image.ROTATE_270.
def mirror(image):
"Flip image horizontally"
return image.transpose(Image.FLIP_LEFT_RIGHT)
##
# Reduce the number of bits for each colour channel.
#
# @param image The image to posterize.
# @param bits The number of bits to keep for each channel (1-8).
# @return An image.
def getmask2(self, text, mode="", fill=Image.core.fill):
size, offset = self.font.getsize(text)
im = fill("L", size, 0)
self.font.render(text, im.id, mode=="1")
return im, offset
##
# Wrapper that creates a transposed font from any existing font
# object.
#
# @param font A font object.
# @param orientation An optional orientation. If given, this should
# be one of Image.FLIP_LEFT_RIGHT, Image.FLIP_TOP_BOTTOM,
# Image.ROTATE_90, Image.ROTATE_180, or Image.ROTATE_270.
def mirror(image):
"Flip image horizontally"
return image.transpose(Image.FLIP_LEFT_RIGHT)
##
# Reduce the number of bits for each colour channel.
#
# @param image The image to posterize.
# @param bits The number of bits to keep for each channel (1-8).
# @return An image.
def getmask2(self, text, mode="", fill=Image.core.fill):
size, offset = self.font.getsize(text)
im = fill("L", size, 0)
self.font.render(text, im.id, mode=="1")
return im, offset
##
# Wrapper that creates a transposed font from any existing font
# object.
#
# @param font A font object.
# @param orientation An optional orientation. If given, this should
# be one of Image.FLIP_LEFT_RIGHT, Image.FLIP_TOP_BOTTOM,
# Image.ROTATE_90, Image.ROTATE_180, or Image.ROTATE_270.
def mirror(image):
"Flip image horizontally"
return image.transpose(Image.FLIP_LEFT_RIGHT)
##
# Reduce the number of bits for each colour channel.
#
# @param image The image to posterize.
# @param bits The number of bits to keep for each channel (1-8).
# @return An image.
