首先先看看成品：
不多说啥废话了，直接给代码吧：
import cv2
import subprocess
from moviepy.editor import *
from PIL import Image,ImageFont,ImageDraw
import os
from cv2 import VideoWriter, VideoWriter_fourcc, imread, resize
def get_char(r,g,b,alpha = 256):
ascii_char = list("#RMNHQODBWGPZ*@$C&98?32I1>!:-;. ")
if alpha == 0:
return ''
length = len(ascii_char)
gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b)
unit = (256.0+1)/len(ascii_char)
return ascii_char[int(gray/unit)]
def video_to_pic(vp,video_path):
number = 0
if vp.isOpened():
video = VideoFileClip(video_path)
audio = video.audio
audio.write_audiofile(video_path.split(".")[0]+".mp3")
r,frame = vp.read()
if not os.path.exists('cache_pic'):
os.mkdir('cache_pic')
os.chdir('cache_pic')
else:
r = False
while r:
number += 1
cv2.imwrite(str(number)+'.jpg',frame)
r,frame = vp.read()
print('\n由视频一共生成了{}张图片！'.format(number))
os.chdir("..")
return number, video_path.split(".")[0]+".mp3"
def img_to_char(image_path,raw_width,raw_height,task):
width = int(raw_width/ 6)
height = int(raw_height / 15)
im = Image.open(image_path).convert('RGB')#必须以RGB模式打开
im = im.resize((width,height),Image.NEAREST)
txt = ''
color = []
for i in range(height):
for j in range(width):
pixel = im.getpixel((j, i))
color.append((pixel[0],pixel[1],pixel[2])) #将颜色加入进行索引
if len(pixel)==4 :
txt +=get_char(pixel[0],pixel[1],pixel[2],pixel[3])
else:
txt +=get_char(pixel[0],pixel[1],pixel[2])
txt += '\n'
color.append((255,255,255))
im_txt = Image.new("RGB",(raw_width,raw_height),(255,255,255))
dr = ImageDraw.Draw(im_txt)
font = ImageFont.load_default().font
x,y = 0,0
font_w,font_h=font.getsize(txt[1])
font_h *= 1.37 #调整字体大小
for i in range(len(txt)):
if(txt[i]=='\n'):
x += font_h
y = -font_w
dr.text((y,x),txt[i] ,fill = color[i])
y+=font_w
os.chdir('cache_char')
im_txt.save(str(task)+'.jpg')
os.chdir("..")
return 0
def star_to_char(number,save_pic_path):
if not os.path.exists('cache_char'):
os.mkdir('cache_char')
img_path_list = [save_pic_path + r'/{}.jpg'.format(i) for i in range(1,number+1)] #生成目标图片文件的路径列表
task = 0
for image_path in img_path_list:
img_width , img_height = Image.open(image_path).size #获取图片的分辨率
task += 1
img_to_char(image_path, img_width , img_height, task)
print('{}/{} is finished.'.format(task,number))
print('=======================')
print('All image was finished!')
print('=======================')
return 0
def jpg_to_video(char_image_path,FPS):
video_fourcc=VideoWriter_fourcc(*"MP42") # 设置视频编码器,这里使用使用MP42编码器,可以生成更小的视频文件
char_img_path_list = [char_image_path + r'/{}.jpg'.format(i) for i in range(1,number+1)] #生成目标字符图片文件的路径列表
char_img_test = Image.open(char_img_path_list[1]).size #获取图片的分辨率
video_writter= VideoWriter('video/new_char_video.mp4' , video_fourcc , FPS , char_img_test)
load = 'loading'
count = 0 #用来清空load进度条的计数
for image_path in char_img_path_list:
img = cv2.imread(image_path)
video_writter.write(img)
load = load + '.'
count += 1
if count % 50 == 0 :
load = 'loading'
print()
print('\r',load,end='')
video_writter.release()
print('\n')
print('=======================')
print('The video is finished!')
print('=======================')
return 'video/new_char_video.mp4'
def video_add_mp3(file_name, mp3_file):
outfile_name = file_name.split('.')[0] + '-finish.mp4'
subprocess.call('ffmpeg -i ' + file_name
+ ' -i ' + mp3_file + ' -strict -2 -f mp4 '
+ outfile_name, shell=True)
if __name__ == '__main__':
video_path = 'video/video.mp4'
save_pic_path = 'cache_pic'
save_charpic_path = 'cache_char'
vp = cv2.VideoCapture(video_path)
number, mp3_file = video_to_pic(vp,video_path)
FPS = vp.get(cv2.CAP_PROP_FPS)
star_to_char(number , save_pic_path)
vp.release()
file_name = jpg_to_video(save_charpic_path,FPS)
video_add_mp3(file_name, mp3_file)
还是很有趣的！
