python 讲图转换成字符串图

python 讲图转换成字符串图

通过多线程实现多张图片同时转化成字符图
效果图如下：

用到的：
- Python pillow

from PIL import Image
import argparse
from threading import Thread
import os


ascii_char = list("$@B%8&WM#abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\|()1{}[]?-_+~<>i!lI;:,\"^`'. ")

#根据rgb 计算灰度值
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)]

def start_writeChar(imagePath,toFilePath):
    im = Image.open(imagePath)
    #图片等比缩放到 高50 自己可以调整
    yw,yh = im.size
    bl = yw/yh
    im = im.resize((50, int(50*bl)), Image.NEAREST)

    width , height = im.size
    txt = ""

    for i in range(height):
        for j in range(width):
            txt += get_char(*im.getpixel((j, i)))
        txt += '\n'

    # 字符画输出到文件
    if toFilePath:
        with open(toFilePath, 'w') as f:
            f.write(txt)
        print(toFilePath + "导出成功")
        return
    print(toFilePath +"导出失败")

if __name__ == "__main__":
    imagePath = r"D:\work\图片转字符图\image"
    toPath = r"D:\work\图片转字符图\chartxt"
    filenameList = os.listdir(imagePath)

    #os.path.splitext(fileName) 将文件名和后缀分开
    for fileName in filenameList:
        targetTxt = os.path.splitext(fileName)[0]
        targetTxt = targetTxt + ".txt"
        tr = Thread(target=start_writeChar,args=(os.path.join(imagePath,fileName),os.path.join(toPath,targetTxt)))
        tr.start()

通过自己改进的网上的小案例，感谢网友提供想法和资源