Python PIL ValueError：图像数据不足

问题描述

我编写了一个加载图像（jpg，JPEG，png，gif等）并将其转换为jpg的功能。代码如下：

def jpg_image_open(file_path,fill_color=(255,255,255)):
    image = PIL.Image.open(file_path)
    print(file_path,image.mode)

    if file_path.endswith('.gif'):
        # print(image.is_animated,image.n_frames)
        for im_frame in PIL.ImageSequence.Iterator(image):
            # Converting it to RGB to ensure that it has 3 dimensions as requested
            im_frame = im_frame.convert('RGB')
            image = im_frame
            break
    elif file_path.endswith('.png'):
        image.load()

    if image.mode in ('P','L'):
        image.convert("RGB")
    elif image.mode in ('RGBA','LA'):
        # https://stackoverflow.com/a/9459208/2049763
        print(file_path," has transparency layer")
        # image.load()  # required for png.split()
        background = PIL.Image.new(image.mode[:-1],image.size,fill_color)
        background.paste(image,image.split()[-1])
        image = background
    return image,np.array(image)

我通常从其他文件中正确地调用它。

# read input image as numpy array
loaded_img,in_image = create_my_tf_record_util.jpg_image_open(img_file)

PIL.Image.fromarray(in_image,'RGB').save(out_img_file)

它适用于所有图像，除非图像处于“ P”，“ L”模式。

Traceback (most recent call last):
  File "dataset_tools/create_my_tf_record_coco.py",line 322,in thread_cube_map_annotation_png
    PIL.Image.fromarray(in_image,'RGB').save(out_img_file)
  File "/home/mazhar/miniconda3/envs/mytfenv/lib/python3.6/site-packages/PIL/Image.py",line 2554,in fromarray
    return frombuffer(mode,size,obj,"raw",rawmode,1)
  File "/home/mazhar/miniconda3/envs/mytfenv/lib/python3.6/site-packages/PIL/Image.py",line 2497,in frombuffer
    return frombytes(mode,data,decoder_name,args)
  File "/home/mazhar/miniconda3/envs/mytfenv/lib/python3.6/site-packages/PIL/Image.py",line 2430,in frombytes
    im.frombytes(data,line 812,in frombytes
    raise ValueError("not enough image data")
ValueError: not enough image data

解决方法

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