我有一個任務多次調用繪圖并根據結果創建 gif（請參閱下面的可重現示例）。我的問題是：我想為這個 gif 添加背景圖像。我的猜測是，我必須在附加之前將它添加到循環中的某個位置。到目前為止我發現了什么，雖然很搞笑并沒有真正涉及到我的問題：在 matplotlib 圖上繪制裁剪后的背景圖像import pandas as pdimport numpy as npimport matplotlib.pyplot as pltimport matplotlib.animation as animationfrom matplotlib.animation import PillowWriterimport timerng = np.random.default_rng()fig = plt.figure(figsize=[10, 9])ims = []for i in range(200): df = pd.DataFrame(rng.integers(0, 100, size=(100, 2)), columns=list('xy')) x = df["x"] y = df["y"] im = plt.plot(x, y, "b.") ims.append(im) print(i) ani = animation.ArtistAnimation(fig, ims, interval=500, blit=True, repeat_delay=1000)writer = PillowWriter(fps=2)ani.save("demo2.gif", writer=writer)
1 回答
HUH函數
TA貢獻1836條經驗 獲得超4個贊
我對此沒有太多經驗，但我能夠顯示我事先調用的圖像plt.imshow()。demo.gif由于文件大小限制，無法上傳。抱歉，示例中使用的圖片效果不佳。對不起。
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
from matplotlib.animation import PillowWriter
import time
import matplotlib.image as mpimg
rng = np.random.default_rng()
fig = plt.figure(figsize=[10, 9])
img = mpimg.imread('lena_thumbnail_center_square.jpg')
ims = []
for i in range(200):
df = pd.DataFrame(rng.integers(0, 100, size=(100, 2)), columns=list('xy'))
x = df["x"]
y = df["y"]
im = plt.plot(x, y, "b.")
ims.append(im)
# print(i)
ani = animation.ArtistAnimation(fig, ims, interval=500, blit=True,
repeat_delay=1000)
plt.imshow(img)
writer = PillowWriter(fps=2)
ani.save("demo2.gif", writer=writer)
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