cv_2.py
import cv2
vidcap = cv2.VideoCapture('video/video.avi')
count = 0
while True:
success, image = vidcap.read()
if success:
cv2.imwrite("pic/frame%d.jpg" % count,image) # save frame as JPEG file
if cv2.waitKey(10) == 27:
break
count += 1
print('视频转图片处理完成！')
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cv_3.py
from PIL import Image,ImageDraw,ImageFont
import cv2
import os
def draw(pic):
img = cv2.imread('pic/' + pic)
img = img[:,:,(2,1,0)]
blank = Image.new("RGB", [len(img[0]),len(img)], "white")
drawObj = ImageDraw.Draw(blank)
n = 10
font = ImageFont.truetype('C:/Windows/Fonts/Microsoft YaHei UI/msyhbd.ttc',size=n-1)
for i in range(0, len(img),n):
for j in range(0, len(img[i]), n):
text = '武汉加油'
drawObj.ink = img[i][j][0] + img[i][j][1]*256 + img[i][j][2]*256*256
drawObj.text([j,i], text[int(j/n)%len(text)],font=font)
print('完成处理----',i,j)
blank.save('new/new_'+pic, 'jpeg')
filelist = os.listdir('pic')
for file in filelist:
draw(file)
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cv_4.py
import os
import cv2
import re
def resort(list):
for i in range(len(list)-1):
for j in range(len(list) - 1):
if int(re.findall(r'\d+', list[j])[0]) > int(re.findall(r'\d+', list[j+1])[0]):
list[j], list[j+1] = list[j+1], list[j]
return list
def picvideo(path, size):
'''
:param path:图片所在文件夹
:param size:图片分辨率
:return:
'''
filelist = os.listdir(path)
filelist = resort(filelist)
'''
fps:
帧率：1秒钟有n张图片写进去[比如控制一张图片停留5秒钟，那帧率为1时需要重复播放这张图片5次]
如果文件夹下有50张534*300的图片，这里设置1秒钟播放5张，那么这个视频的时长就是10秒
'''
fps = 24
file_path = 'video/new.mp4'
fourcc = cv2.VideoWriter_fourcc('D','I','V','X') # 不同的视频编码对应不同的视频格式
video = cv2.VideoWriter(file_path, fourcc, fps, size)
for item in filelist:
if item.endswith('.jpg'):
item = path + '/' + item
img = cv2.imread(item) ## 使用opencv读取图片，直接返回numpy.ndarray对象，通道顺序为BGR,注意是BGR,通道默认值范围0-255
video.write(img) # 把图片写进视频
video.release() # 释放
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picvideo(r'new',(960,544))
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注意：
（1）不要直接pip install cv2，而是pip install opencv-python 来安装cv2模块
（2）自行去网上下载原始樱花绽放video，比较大900多M
（3）有了这个demo以后就可以搞点小玩意玩玩