def get_thumbnail_image(filename, size='normal', autoSave = True):
source_image_name = filename
thumbnail_image_name = get_thumbnail_image_name(filename,size)
thumbnail_size = get_thumbnail_image_size(size)
thumbnail_crop = get_thumbnail_image_crop(size)
# 检查缩略图是否存在
storage = get_storage()
thumbs_storage = get_thumbs_storage()
exists = thumbs_storage.exists(thumbnail_image_name)
if exists:
#print "storage exists file~~",thumbnail_image_name
return thumbnail_image_name
try:
exists = storage.exists(source_image_name)
if not exists:
print "storage not exists source file >_< ",source_image_name
return thumbnail_image_name
source_file = storage.open(filename)
# 实例PIl对象
im = Image.open(source_file.file)
format = Image.EXTENSION.get(thumbnail_image_name, 'PNG')
if im.info.has_key("duration") and 0:
# 动态gif图
original_duration = im.info['duration']
#frames = [frame.copy() for i, frame in enumerate(iter_frames(im))]
#frames = [scale_and_crop(frame, thumbnail_size) for i, frame in enumerate(iter_frames(im))]
frames = []
for i, frame in enumerate(iter_frames(im)):
frame = colorspace(frame)
frame = autocrop(frame)
frame = scale_and_crop(frame, thumbnail_size)
frames.append(frame)
#frames.reverse()
i=0
for frame in frames:
i+=1
#frame.thumbnail((72,72))
output = StringIO()
img_data = images2gif.writeGif(output, frames, duration=original_duration/1000.0, dither=0)
thumbnail_file = thumbs_storage.save(thumbnail_image_name,img_data)
else:
im = colorspace(im)
im = autocrop(im)
im = scale_and_crop(im, thumbnail_size, thumbnail_crop)
output = StringIO()
im.save(output, format)
is_transparent = is_transparent_image(im)
if is_transparent:
img_data = output.getvalue()
else:
img_data = im.tostring('jpeg', 'RGB')
output.close()
thumbnail_file = thumbs_storage.save(thumbnail_image_name,img_data)
except Exception, e:
raise
def get_thumbnail_image_attr(filename):
attr = {}
print filename
print "##############"
storage = get_thumbs_storage()
exists = storage.exists(filename)
if exists:
try:
source_file = storage.open(filename)
# 实例PIl对象
im = Image.open(source_file.file)
width,height = im.size
attr = {'width':width,'height':height}
except Exception, e:
pass
