我想用Tkinter显示动画gif。我尝试使用提议的解决方案here。
问题是在我的gif中,只有第一帧完成。所有其他帧都包含一个大部分透明的区域,其中只有几个像素会改变w.r.t.前一帧是不透明的。
我可以告诉Tkinter这些帧的背景应该是透明的吗?
from Tkinter import *
from PIL import Image, ImageTk
class MyLabel(Label):
def __init__(self, master, filename):
im = Image.open(filename)
seq = []
try:
while 1:
seq.append(im.copy())
im.seek(len(seq)) # skip to next frame
except EOFError:
pass # we're done
try:
self.delay = im.info['duration']
except KeyError:
self.delay = 100
first = seq[0].convert('RGBA')
self.frames = [ImageTk.PhotoImage(first)]
Label.__init__(self, master, image=self.frames[0])
temp = seq[0]
for image in seq[1:]:
temp.paste(image)
frame = temp.convert('RGBA')
self.frames.append(ImageTk.PhotoImage(frame))
self.idx = 0
self.cancel = self.after(self.delay, self.play)
def play(self):
self.config(image=self.frames[self.idx])
self.idx += 1
if self.idx == len(self.frames):
self.idx = 0
self.cancel = self.after(self.delay, self.play)
root = Tk()
anim = MyLabel(root, 'animated.gif')
anim.pack()
def stop_it():
anim.after_cancel(anim.cancel)
Button(root, text='stop', command=stop_it).pack()
root.mainloop()
答案 0 :(得分:0)
看起来你需要为粘贴操作提供一个掩码:
from Tkinter import *
from PIL import Image, ImageTk
class MyLabel(Label):
def __init__(self, master, filename):
im = Image.open(filename)
seq = []
try:
while 1:
seq.append(im.copy())
im.seek(len(seq)) # skip to next frame
except EOFError:
pass # we're done
try:
self.delay = im.info['duration']
except KeyError:
self.delay = 100
first = seq[0].convert('RGBA')
self.frames = [ImageTk.PhotoImage(first)]
Label.__init__(self, master, image=self.frames[0])
lut = [1] * 256
lut[im.info["transparency"]] = 0
temp = seq[0]
for image in seq[1:]:
mask = image.point(lut, "1")
# point() is used to map image pixels into mask pixels
# via the lookup table (lut), creating a mask
# with value 0 at transparent pixels and
# 1 elsewhere
temp.paste(image, None, mask) #paste with mask
frame = temp.convert('RGBA')
self.frames.append(ImageTk.PhotoImage(frame))
self.idx = 0
self.cancel = self.after(1000, self.play)
def play(self):
self.config(image=self.frames[self.idx])
self.idx += 1
if self.idx == len(self.frames):
self.idx = 0
self.cancel = self.after(self.delay, self.play)
root = Tk()
anim = MyLabel(root, 'tumblr_m3i10ma4fI1qe0eclo1_r9_500.gif')
anim.pack()
def stop_it():
anim.after_cancel(anim.cancel)
Button(root, text='stop', command=stop_it).pack()
root.mainloop()