def get_path_pairs(folder, split_file):
    img_paths = []
    mask_paths = []
    with open(os.path.join(folder, split_file), 'r') as f:
        for filename in f.readlines():
            filename = filename.strip()
            imgpath = os.path.join(folder, 'image', filename)
            maskpath = os.path.join(folder, 'mask', filename)
            if os.path.isfile(maskpath):
                img_paths.append(imgpath)
                mask_paths.append(maskpath)
            else:
                print('cannot find the mask:', maskpath)
    return (img_paths, mask_paths)
def get_path_pairs(folder, split_file):
    img_paths = []
    mask_paths = []
    with open(os.path.join(folder, split_file), 'r') as f:
        for filename in f.readlines():
            filename = filename.strip()
            imgpath = os.path.join(folder, 'image', filename)
            maskpath = os.path.join(folder, 'mask', filename)
            if os.path.isfile(maskpath):
                img_paths.append(imgpath)
                mask_paths.append(maskpath)
            else:
                print('cannot find the mask:', maskpath)
    return (img_paths, mask_paths)