python 图像格式转换文件夹下 jpg 转 bmp

import os
from PIL import Image


def jpgToBmp(imgFile):
  dst_dir = "/home/moli/project/data/xiaoming2"

  for fileName in os.listdir(imgFile):
    if os.path.splitext(fileName)[1] == '.jpg':
      name = os.path.splitext(fileName)[0]
      newFileName = name + ".bmp"

      img = Image.open(imgFile + "/" + fileName)
      img.save(dst_dir+"/"+newFileName)


def main():
  imgFile = "/home/moli/project/data/xiaoming"

  jpgToBmp(imgFile)


if __name__ == '__main__':
   main()

目录遍历

import os


# 遍历文件夹
def walkFile(file):
    for root, dirs, files in os.walk(file):

        # root 表示当前正在访问的文件夹路径
        # dirs 表示该文件夹下的子目录名list
        # files 表示该文件夹下的文件list

        # 遍历文件
        for f in files:
            print(os.path.join(root, f))

        # 遍历所有的文件夹
        for d in dirs:
            print(os.path.join(root, d))


# 获取所有.jpg 文件名称,不带后缀
def GetImgName(dir):
    listName = []
    for fileName in os.listdir(dir):
        if os.path.splitext(fileName)[1] == '.jpg':
            fileName = os.path.splitext(fileName)[0]
            listName.append(fileName)
    print(listName)
    return listName



def main():
    dirPath = "/home/moli/project/data/"
    walkFile(dirPath)

    print("dirPath = %s" % (dirPath))   
    print(os.path.dirname(dirPath))
    print(os.path.basename(dirPath))

    filePath = "/home/moli/project/data/fileLoop.py"
    print("filePath = %s" % (filePath))
    print(os.path.dirname(filePath))
    print(os.path.basename(filePath))

    print("\n") 
    print("\n")
    imgFile = "/home/moli/project/data/clearImg"
    listName = GetImgName(imgFile)


if __name__ == '__main__':
    main()