matplotlib动画产生空白 [英] matplotlib animation produces a blank

问题描述

我有一堆要转换为动画的PNG.我为此使用matplotlib.我可以在屏幕上显示最终的动画，一切看起来都很好.但是保存的MP4只是空白.我的意思是我可以玩，但是它只显示了一个白色的，没有功能的窗口.有什么想法我做错了吗?这是代码:

I have a bunch of PNGs that I want to turn into an animation. I use matplotlib for this. I can display the resulting animation on the screen and everything looks fine. But the saved MP4 is just a blank. I mean I can play it, but it just shows a white, featureless window. Any ideas what I'm doing wrong? Here's the code:

import matplotlib
matplotlib.use('TKAgg')
import pylab as pyl
import matplotlib.pyplot as pplt
import matplotlib.image as mplimg
import matplotlib.animation as mplanim

myimages = []

for k in range(1,100):
    fname = "data{0:03d}.png".format(k)
    img = mplimg.imread(fname)
    imgplot = pplt.imshow(img)
    myimages.append([imgplot])

fig = pyl.figure()

myanim = mplanim.ArtistAnimation(fig, myimages, interval=20,
                                  blit=True, repeat_delay=1000)


myanim.save("anim.mp4", fps=10)

pyl.show()

更新:在导入解决问题之后，立即将fig = pyl.figure()移至代码顶部.如果有人知道为什么，请随时告诉！谢谢.

UPDATE: Moving fig = pyl.figure() to the top of the code, right after the imports solves the problem. If anyone knows why, feel free to tell! Thanks.

推荐答案

更正此行:

myimages.append([imgplot])

进入:

myimages.append(imgplot)

看看是否可行.

这篇关于matplotlib动画产生空白的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！