代码2
最后更新于:2022-04-02 01:47:33
- 视频转化: https://cloudconvert.com/avi-to-mp4
~~~
import os
import cv2
from cv2 import VideoWriter, VideoWriter_fourcc, imread, resize
from PIL import Image, ImageFont, ImageDraw
# 图片填充的字符
#ascii_char = list("#ABCDEFGHIJKLMNOPQRSTUVWXYZ@$%??__ff--++~~'' ::.. `` ")
ascii_char = list("MNHQ$OC67+>!:-. ")
# 将像素转换为ascii码
def get_char(r, g, b, alpha=256):
if alpha == 0:
return ''
length = len(ascii_char)
gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b)
unit = (256.0 + 1) / length
return ascii_char[int(gray / unit)]
# 将txt转换为图片
def txt2image(file_name):
im = Image.open(file_name).convert('RGB')
# gif拆分后的图像,需要转换,否则报错,由于gif分割后保存的是索引颜色
raw_width = im.width
raw_height = im.height
width = int(raw_width / 6)
height = int(raw_height / 15)
im = im.resize((width, height), Image.NEAREST)
txt = ""
colors = []
for i in range(height):
for j in range(width):
# 获取当前位置的三原色
pixel = im.getpixel((j, i))
# 字符上颜色
#colors.append((pixel[0], pixel[1], pixel[2]))
# 字符上黑色
colors.append((0, 0, 0))
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'
colors.append((255, 255, 255))
im_txt = Image.new("RGB", (raw_width, raw_height), (255, 255, 255))
dr = ImageDraw.Draw(im_txt)
# font = ImageFont.truetype(os.path.join("fonts","汉仪楷体简.ttf"),18)
font = ImageFont.load_default().font
x = y = 0
# 获取字体的宽高
font_w, font_h = font.getsize(txt[1])
font_h *= 1.37 # 调整后更佳
# ImageDraw为每个ascii码进行上色
for i in range(len(txt)):
if txt[i] == '\n':
x += font_h
y = -font_w
dr.text((y, x), txt[i], fill=colors[i])
y += font_w
name = file_name
im_txt.save(name)
# 将视频拆分成图片
def video2txt_jpg(file_name):
vc = cv2.VideoCapture(file_name)
c = 1
if vc.isOpened():
r, frame = vc.read()
if not os.path.exists('Cache'):
os.mkdir('Cache')
os.chdir('Cache')
else:
r = False
while r:
# 生成拆分的图片
cv2.imwrite(str(c) + '.jpg', frame)
# 将图片转换为ascii图
txt2image(str(c) + '.jpg')
r, frame = vc.read()
c += 1
os.chdir('..')
return vc
# 将图片合成视频
def jpg2video(outfile_name, fps):
fourcc = VideoWriter_fourcc(*"MJPG")
images = os.listdir('Cache')
im = Image.open('Cache/' + images[0])
vw = cv2.VideoWriter(outfile_name + '.avi', fourcc, fps, im.size)
os.chdir('Cache')
for image in range(len(images)):
frame = cv2.imread(str(image + 1) + '.jpg')
vw.write(frame)
os.chdir('..')
vw.release()
# 递归删除目录
def remove_dir(path):
if os.path.exists(path):
if os.path.isdir(path):
dirs = os.listdir(path)
for d in dirs:
if os.path.isdir(path + '/' + d):
remove_dir(path + '/' + d)
elif os.path.isfile(path + '/' + d):
os.remove(path + '/' + d)
os.rmdir(path)
return
elif os.path.isfile(path):
os.remove(path)
return
if __name__ == '__main__':
# 输入视频路径
INPUT = r"D:\video\demo2.mp4"
# 将视频拆分成图片, 将图片转像素,
vc = video2txt_jpg(INPUT)
# 将像素图片合成视频
jpg2video(INPUT.split('.')[0], vc.get(cv2.CAP_PROP_FPS))
# 移出拆分出来的图片
remove_dir("Cache")
~~~
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