python 给视频添加马赛克
2021-05-13 03:31
标签：选择 pen imp jpg 没有 opened video frame break 1. 创建空文件夹：imgs 2. 将倒数第三行中的"222056.mov"改为你的视频路径，如："a.mov" 3. 运行以下代码 4. 稍等片刻，鼠标拖动选择添加马赛克区域，按enter确定（每次操作只能添加一个马赛克区域，视频会根据所选区域全程添加马赛克） 5. 稍等片刻，‘a.avi ‘就是做好的视频文件，！！！注意！！！该视频文件没有音频 python 给视频添加马赛克 标签：选择 pen imp jpg 没有 opened video frame break 原文地址：https://www.cnblogs.com/niulang/p/13131952.html用法：
源码：
import cv2, os
import numpy as np
def video2img(videoroot):
cap = cv2.VideoCapture(videoroot)
isOpened = cap.isOpened # 判断是否打开‘
print(isOpened)
fps = cap.get(cv2.CAP_PROP_FPS) #帧率
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
print(fps,width,height)
i = 0
while(isOpened):
i += 1
(flag,frame) = cap.read() # 读取每一张 flag frame
fileName = ‘./imgs/image‘+str(i)+‘.jpg‘
print(fileName)
if flag == True:
frame = np.rot90(frame, 1)
cv2.imwrite(fileName,frame)
else:
break
return fps
def img2video(outvideoroot, fps):
img = cv2.imread(‘./imgs/image1.jpg‘)
imgInfo = img.shape
size = (imgInfo[1],imgInfo[0])
print(size)
fourcc = cv2.VideoWriter_fourcc(*‘XVID‘)
videowriter = cv2.VideoWriter(outvideoroot,fourcc,fps,size)
list_imgs = os.listdir(‘./imgs‘)
for i in range(1, len(list_imgs)):
fileName = ‘./imgs/image‘+str(i)+‘.jpg‘
img = cv2.imread(fileName)
videowriter.write(img)
def get_xoy():
imgsroot = ‘./imgs‘
list_ = os.listdir(imgsroot)
for n in list_:
path_ = os.path.join(imgsroot, n)
img = cv2.imread(path_)
bbox = cv2.selectROI(‘selectroi‘, img)
break
return bbox
def fitsign():
box = get_xoy()
xo, yo, w, h = box[0], box[1],box[2],box[3],
print(box)
dstroot = ‘./imgs‘
dstlist = os.listdir(dstroot)
kernel_size = (41, 41)
sigma = 50
for n in dstlist:
path_ = os.path.join(dstroot, n)
img = cv2.imread(path_)
crop = img[yo:yo+h, xo:xo+w, :]
crop = cv2.GaussianBlur(crop, kernel_size, sigma)
# crop = cv2.blur(crop, (41,41))
img[yo:yo+h, xo:xo+w, :] = crop
cv2.imwrite(path_, img)
if __name__ == "__main__":
fps = video2img("222056.mov")
fitsign()
img2video(‘a.avi‘, fps)