python字母转换视频_用python将视频转换为字符画视频
importcv2from PIL importImage,ImageFont,ImageDrawimportosfrom cv2 importVideoWriter, VideoWriter_fourcc, imread, resize#=========================#coding:UTF-8#视频转字符画含音频version-1#参考1：https://blog.csdn.net/mp624183768/article/details/81161260#参考2：https://blog.csdn.net/qq_42820064/article/details/90958577#参考3：https://blog.csdn.net/zj360202/article/details/79026891#=========================
def get_char(r,g,b,alpha = 256):#ascii_char = list("#RMNHQODBWGPZ*@$C&98?32I1>!:-;. ")
ascii_char = list("$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:oa+>!:+.")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)]#将视频转换为图片 并进行计数，返回总共生成了多少张图片！
defvideo_to_pic(vp):#vp = cv2.VideoCapture(video_path)
number =0ifvp.isOpened():
r,frame=vp.read()if not os.path.exists('cache_pic'):
os.mkdir('cache_pic')
os.chdir('cache_pic')else:
r=Falsewhiler:
number+= 1cv2.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("..")returnnumberdefimg_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 inrange(height):for j inrange(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.truetype('consola.ttf', 10, encoding='unic') #改为这个字体会让图片比例改变
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 inrange(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("..")return0defstar_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 =0for image_path inimg_path_list:
img_width , img_height= Image.open(image_path).size #获取图片的分辨率
task += 1img_to_char(image_path, img_width , img_height, task)print('{}/{} is finished.'.format(task,number))print('=======================')print('All image was finished!')print('=======================')return0def process_bar(percent, start_str='', end_str='', total_length=0):#进度条
bar = ''.join("■" * int(percent * total_length)) + ''bar= '\r' + start_str + bar.ljust(total_length) + '{:0>4.1f}%|'.format(percent*100) +end_strprint(bar, end='', flush=True)defjpg_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
if not os.path.exists('video'):
os.mkdir('video')
video_writter= VideoWriter('video/new_char_video.avi', video_fourcc , FPS , char_img_test)
sum=len(char_img_path_list)
count=0for image_path inchar_img_path_list:
img=cv2.imread(image_path)
video_writter.write(img)
end_str= '100%'count= count + 1process_bar(count/sum, start_str='', end_str=end_str, total_length=15)
video_writter.release()print('\n')print('=======================')print('The video is finished!')print('=======================')if __name__ == '__main__':
video_path= 'Produce_BiliBili.mp4'save_pic_path= 'cache_pic'save_charpic_path= 'cache_char'vp=cv2.VideoCapture(video_path)
number=video_to_pic(vp)
FPS=vp.get(cv2.CAP_PROP_FPS)
star_to_char(number , save_pic_path)
vp.release()
jpg_to_video(save_charpic_path,FPS)