首先先看看成品：
不多说啥废话了，直接给代码吧：
很多人学习python，不知道从何学起。 很多人学习python，掌握了基本语法过后，不知道在哪里寻找案例上手。 很多已经做案例的人，却不知道如何去学习更加高深的知识。 那么针对这三类人，我给大家提供一个好的学习平台，免费领取视频教程，电子书籍，以及课程的源代码！ QQ群：961562169
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)