how to convert a directory of image on png to jpg in python

Question

from PIL import Image
from os import listdir
from os.path import splitext
import cv2
target_directory = r"E:\pre\png"
target = '.jpg'
jpg_folder_path = r"E:\pre\jpeg"
for file in listdir(target_directory):
    filename, extension = splitext(file)
    try:
        if extension not in ['.py', target]:
            im = Image.open(filename + extension)
            #im.save((os.path.join(jpg_folder_path, im))filename + target)
            cv2.imwrite(os.path.join(jpg_folder_path , filename + target), im)
    except OSError:
        print('Cannot convert %s' % file)

OUTPUT

Cannot convert 000c1434d8d7.png
Cannot convert 00a8624548a9.png
..

Answer 1

Use pathlib for the filesystem access. That is more pythonic way to do.

from pathlib import Path
from PIL import Image

inputPath = Path("E:/pre/png")
inputFiles = inputPath.glob("**/*.png")
outputPath = Path("E:/pre/jpeg")
for f in inputFiles:
    outputFile = outputPath / Path(f.stem + ".jpg")
    im = Image.open(f)
    im.save(outputFile)