基于Python实现视频转字符画动漫小工具基于Python实现视频转字符画动

导语
正文

一、准备中
二、原理简介
三、代码演示
四、效果展示

导语 ?哈喽！boys andgirls 我是每天疯狂赶代码的木木子~
今天带大家来点儿好玩儿的东西，我想你们肯定是喜欢的！

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上面这个大家都认识吧
对，就是字符动画啦，之前也是不是再那个旮旯里面看见过，但是还没上手自己试的。
小编给大家先试试效果了，效果也是真不错，趣味性蛮强滴推荐指数5颗星，大家都开始动手
燥起来吧~
那么如何将视频动画转成字符画呢？今天就来教大家怎么转换，非常简单，今天教大家制作的
这款工具就能一键转换！

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正文
一、准备中
1）素材的话可以自己找一小段视频的哈。
2）环境安装
本文用到的环境如下：Python3、Pycharm、numpy、cv2以及部分自带模块。
模块安装：

pip install -i https://pypi.douban.com/simple/ +模块名

二、原理简介
1）视频转为一帧帧的图片这个利用OpenCV就可以实现了。
2）**将每帧图片转为字符画，**原理是根据图片的像素值确定每个像素点用什么字符。
3）按顺序播放字符画即可。

三、代码演示

# 视频转字符动画import osimport cv2import sysimport timeimport ctypesimport subprocessimport numpy as np# 暗蓝色FOREGROUND_DARKBLUE = 0x01# 暗绿色FOREGROUND_DARKGREEN = 0x02# 暗天蓝色FOREGROUND_DARKSKYBLUE = 0x03# 暗红色FOREGROUND_DARKRED = 0x04# 暗粉红色FOREGROUND_DARKPINK = 0x05# 暗黄色FOREGROUND_DARKYELLOW = 0x06# 暗白色FOREGROUND_DARKWHITE = 0x07# 暗灰色FOREGROUND_DARKGRAY = 0x08# 蓝色FOREGROUND_BLUE = 0x09# 绿色FOREGROUND_GREEN = 0x0a# 天蓝色FOREGROUND_SKYBLUE = 0x0b# 红色FOREGROUND_RED = 0x0c# 粉红色FOREGROUND_PINK = 0x0d# 黄色FOREGROUND_YELLOW = 0x0e# 白色FOREGROUND_WHITE = 0x0f# 上面颜色对应的RGB值cmd_colors = {'FOREGROUND_DARKBLUE': [FOREGROUND_DARKBLUE, (0, 0, 139)],'FOREGROUND_DARKGREEN': [FOREGROUND_DARKGREEN, (0, 100, 0)],'FOREGROUND_DARKSKYBLUE': [FOREGROUND_DARKSKYBLUE, (2, 142, 185)],'FOREGROUND_DARKRED': [FOREGROUND_DARKRED, (139, 0, 0)],'FOREGROUND_DARKPINK': [FOREGROUND_DARKPINK, (231, 84, 128)],'FOREGROUND_DARKYELLOW': [FOREGROUND_DARKYELLOW, (204, 204, 0)],'FOREGROUND_DARKWHITE': [FOREGROUND_DARKWHITE, (255, 250, 250)],'FOREGROUND_DARKGRAY': [FOREGROUND_DARKGRAY, (169, 169, 169)],'FOREGROUND_BLUE': [FOREGROUND_BLUE, (0, 0, 255)],'FOREGROUND_GREEN': [FOREGROUND_GREEN, (0, 128, 0)],'FOREGROUND_SKYBLUE': [FOREGROUND_SKYBLUE, (135, 206, 235)],'FOREGROUND_RED': [FOREGROUND_RED, (255, 0, 0)],'FOREGROUND_PINK': [FOREGROUND_PINK, (255, 192, 203)],'FOREGROUND_YELLOW': [FOREGROUND_YELLOW, (255, 255, 0)],'FOREGROUND_WHITE': [FOREGROUND_WHITE, (255, 255, 255)]}CHARS = " .,-'`:!1+*abcdefghijklmnopqrstuvwxyz<>()\/{}[]?234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ%&@#$"'''Function: 视频转图片Input: -videopath: 视频路径 -size: 指定图片大小 -interval: 视频每interval帧取一帧Return: -img_list: 图像列表'''def video2imgs(videopath, size, interval=1): img_list = list() capture = cv2.VideoCapture(videopath) i = -1 while capture.isOpened():i += 1ret, frame = capture.read()if ret:if i % interval == 0:# frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)img = cv2.resize(frame, size, interpolation=cv2.INTER_AREA)img_list.append(img)else:break capture.release() return img_list'''# 根据距离将图片的RGB值转为Windows-CMD窗口支持的颜色def RGB2Cmdcolor(color): cmd_color = None min_distance = 1e6 for key, value in cmd_colors.items():distance = np.square(np.array(color) - np.array(value[1])).sum()if distance < min_distance:min_distance = distancecmd_color = value[0] return cmd_color''''''Function: 图像转字符画Input: -img(np.array): 图像Return: -img_chars: 像素点对应的字符集合'''def img2chars(img): img_chars = [] height, width, channel = img.shape for row in range(height):line = ""for col in range(width):percent = int(np.array(img[row][col]).sum() / 3) / 255char_idx = int(percent * (len(CHARS) - 1))line += CHARS[char_idx] + ' 'img_chars.append(line) return img_chars'''Function: 视频转字符画sInput: -imgs: 视频里捕获的所有图片Return: -video_chars: img_chars的集合'''def imgs2chars(imgs): video_chars = [] for img in imgs:video_chars.append(img2chars(img)) return video_chars'''Function: 播放字符画sInput: -video_chars: imgs2chars中获取的video_chars -iscmd(bool): 是否在Windows的cmd窗口播放 -color: 颜色选择, cmd中有效'''def play(video_chars, color=None, iscmd=True): if color and iscmd:STD_OUTPUT_HANDLE = -11std_out_handle = ctypes.windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)color_choice = Noneif color.isdigit():color_choice = list(cmd_colors.values())[int(color)][0]else:color_choice = cmd_colors.get(color)[0]if color_choice is not None:_ = ctypes.windll.kernel32.SetConsoleTextAttribute(std_out_handle, color_choice) width, height = len(video_chars[0][0]), len(video_chars[0]) for img_chars in video_chars:for row in range(height):print(img_chars[row])time.sleep(1/24)if iscmd:os.system('cls')else:subprocess.call("clear")# 主函数def main(videopath, color=None, iscmd=True): imgs = video2imgs(videopath=videopath, size=(64, 48), interval=1) video_chars = imgs2chars(imgs) input("[INFO]: Complete Pre-processing! Enter button to start to play...") if iscmd:os.system('cls') else:subprocess.call("clear") play(video_chars, color=color, iscmd=True)if __name__ == '__main__': import argparse parser = argparse.ArgumentParser() parser.add_argument('-f', '--file', help='Video file.') parser.add_argument('-c', '--color', help='Color for playing.') args = parser.parse_args() main(args.file, color=args.color)

四、效果展示
1）截图效果展示
第一组随机截图：