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余米试图在我的互动情节 的中间增加一个注解,我想看到我的循环我值产生我测试列表 与我的所有数据添加注释。对于每个imshow情节,我想看到我的我值, 我添加ax.annotate,但它不起作用。在交互式情节
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
fig = plt.figure() # make figure
ax = fig.add_subplot(111)
test = []
mask2 = np.random.randint(255, size=(20, 20))
for i in range(1,5,3):
kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(i,i))
res = (cv2.morphologyEx(mask2.astype(uint8),cv2.MORPH_OPEN,kernel))
#plt.imshow(res,cmap=plt.cm.gray,alpha=1);plt.show()
test.append(res)
# make axesimage object
# the vmin and vmax here are very important to get the color map correct
im = ax.imshow(test[0], cmap=plt.get_cmap('hot'), vmin=0, vmax=255)
im2 = ax.annotate('This is awesome!',
xy=(76, -10.75),
xycoords='data',
textcoords='offset points',
arrowprops=dict(arrowstyle="->"))
plt.show()
# function to update figure
def updatefig(j):
# set the data in the axesimage object
im.set_array(test[j])
# return the artists set
return im,
# kick off the animation
ani = animation.FuncAnimation(fig, updatefig, frames=range(20),
interval=50, blit=True)
plt.show()