前言
imageio介绍
imageio安装
pip install imageio
合成gif图
import imageio def compose_gif(): img_paths = ["img/1.jpg","img/2.jpg","img/3.jpg","img/4.jpg" ,"img/5.jpg","img/6.jpg"] gif_images = [] for path in img_paths: gif_images.append(imageio.imread(path)) imageio.mimsave("test.gif",gif_images,fps=1)
读取特殊url图片
import imageio import matplotlib.pyplot as plt def read_special_url_image(): img = imageio.imread("imageio:chelsea.png") plt.imshow(img) plt.show()
url = 'http://upload.wikimedia.org/wikipedia/ commons/d/de/Wikipedia_Logo_1.0.png' img = imageio.imread(url)
url = "https://timgsa.baidu.com/timg?image&quality=80&size= b9999_10000&sec=1545324012100&di=77a4ba3d60cdfc60 d161bd6ed97c2319&imgtype=0&src=http%3A%2F%2Fwww.hxzyt j.com%2Fthemes%2Ftheme_3%2Fpc%2Fimages%2Fpython%2Fimg_01.jpg" img = imageio.imread(imageio.core.urlopen(url).read(), '.jpg')
#截屏 img = imageio.imread("<screen>") #读取粘贴板的图片 img = imageio.imread("<clipboard>")
读取视频
def get_video_per_frame(): reader = imageio.get_reader("test.mp4") for i,im in enumerate(reader): print("Mean of frame %i is %1.1f"%(i,im.mean()))
在使用imageio读取视频的时候可能会报上面的错误,提示需要安装ffmpeg,可以根据提示进行安装即可.除此之外,imageio还提供了许多方便的接口,有兴趣的可以去了解一下.