def savePicture(picture, filename):
if type(picture) == type([]):
import ImageChops
from GifImagePlugin import getheader, getdata
# open output file
fp = open(filename, "wb")
previous = None
for im in picture:
if type(im) == type(""): # filename
im = Image.open(im)
im.load()
im = im.convert("P") # in case jpeg, etc
else:
im = im.image.convert("P")
if not previous:
for s in getheader(im) + getdata(im):
fp.write(s)
else:
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
if bbox:
for s in getdata(im.crop(bbox), offset=bbox[:2]):
fp.write(s)
previous = im.copy()
fp.write(";")
fp.close()
else:
return picture.image.save(filename)
def savePicture(picture, filename):
if type(picture) == type([]):
import ImageChops
from GifImagePlugin import getheader, getdata
# open output file
fp = open(filename, "wb")
previous = None
for im in picture:
if type(im) == type(""): # filename
im = Image.open(im)
im.load()
im = im.convert("P") # in case jpeg, etc
else:
im = im.image.convert("P")
if not previous:
for s in getheader(im) + getdata(im):
fp.write(s)
else:
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
if bbox:
for s in getdata(im.crop(bbox), offset = bbox[:2]):
fp.write(s)
previous = im.copy()
fp.write(";")
fp.close()
else:
return picture.image.save(filename)
def makedelta(fp, sequence):
"""Convert list of image frames to a GIF animation file"""
previous = None
for im in sequence:
if not previous:
# global header
for s in getheader(im) + getdata(im):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
if not bbox:
bbox = (0,0, 1,1)
# compress difference
for s in getdata(im.crop(bbox), offset = bbox[:2]):
fp.write(s)
previous = im.copy()
fp.write(";")
def makedelta(fp, sequence):
"""Convert list of image frames to a GIF animation file"""
frames = 0
previous = None
for im in sequence:
#
# FIXME: write graphics control block before each frame
if not previous:
# global header
for s in getheader(im) + getdata(im):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
if bbox:
# compress difference
for s in getdata(im.crop(bbox), offset = bbox[:2]):
fp.write(s)
else:
# FIXME: what should we do in this case?
pass
previous = im.copy()
frames = frames + 1
fp.write(";")
return frames
def makedelta(fp, sequence):
"""Convert list of image frames to a GIF animation file"""
frames = 0
previous = None
for im in sequence:
#
# FIXME: write graphics control block before each frame
if not previous:
# global header
for s in getheader(im) + getdata(im):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
if bbox:
# compress difference
for s in getdata(im.crop(bbox), offset=bbox[:2]):
fp.write(s)
else:
# FIXME: what should we do in this case?
pass
previous = im.copy()
frames = frames + 1
fp.write(";")
return frames
def makeAnimatedGIF(filename, images):
"""Convert list of image frames to a GIF animation file
using simple delta coding"""
frames = 0
previous=None
fp = open(filename, 'wb')
if images[0].mode in ['RGB','RGBA']:
#first make an optimised palette
optimPalette=makePalette(images, verbose=True)
for n, im in enumerate(images):
print 'converting frame %i of %i to GIF' %(n+1,len(images))
if im.mode=='RGB':
im = rgb2palette(im, palette=optimPalette, verbose=False)
if not previous:
# global header
for s in getheader(im) + getdata(im):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
# compress difference
if bbox:
for s in getdata(im.crop(bbox), offset = bbox[:2]):
fp.write(s)
else:
for s in getdata(im):
fp.write(s)
previous = im.copy()
frames = frames + 1
fp.write(";")
fp.close()
return frames
def makeAnimatedGIF(filename, images):
"""Convert list of image frames to a GIF animation file
using simple delta coding"""
frames = 0
previous = None
fp = open(filename, 'wb')
if images[0].mode in ['RGB', 'RGBA']:
#first make an optimised palette
optimPalette = makePalette(images, verbose=True)
for n, im in enumerate(images):
print 'converting frame %i of %i to GIF' % (n + 1, len(images))
if im.mode == 'RGB':
im = rgb2palette(im, palette=optimPalette, verbose=False)
if not previous:
# global header
for s in getheader(im) + getdata(im):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im, previous)
bbox = delta.getbbox()
# compress difference
if bbox:
for s in getdata(im.crop(bbox), offset=bbox[:2]):
fp.write(s)
else:
for s in getdata(im):
fp.write(s)
previous = im.copy()
frames = frames + 1
fp.write(";")
fp.close()
return frames
