在创建读取TGA图像文件的输入管道时遇到麻烦。
tf.decode_image()用于解码jpeg/png/bmp/gif图像。因此，我尝试通过tf.py _ function通过tf.placeholder传递图像路径来解决此问题，如下所示。但这是行不通的。当我直接通过图像路径时，没有问题。
def myfunc(f_p):
im = np.asarray(Image.open(f_p), dtype='float32')
im /= 255
return im
f_p_ph = tf.placeholder(tf.string, name='file_path')
image = tf.py_function(myfunc, [f_p_ph], tf.float32, name='image')
with tf.Session() as sess:
filename = r'xxx.tga'
img = sess.run(image, feed_dict={f_p_ph: filename})
print(img)
但可以如下所示：
filename = r'xxx.tga'
def myfunc():
im = np.asarray(Image.open(filename), dtype='float32')
im /= 255
return im
f_p_ph = tf.placeholder(tf.string, name='file_path')
image = tf.py_function(myfunc, [f_p_ph], tf.float32, name='image')
with tf.Session() as sess:
img = sess.run(image)
print(img)
错误消息是
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2638, in open
fp.seek(0)
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'seek'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 205, in __call__
return func(device, token, args)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 107, in __call__
ret = self._func(*args)
File "E:/code/python/Test/example/test.py", line 108, in myfunc
im = np.asarray(Image.open(f_p), dtype='float32')
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2640, in open
fp = io.BytesIO(fp.read())
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1334, in _do_call
return fn(*args)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1319, in _run_fn
options, feed_dict, fetch_list, target_list, run_metadata)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1407, in _call_tf_sessionrun
run_metadata)
tensorflow.python.framework.errors_impl.UnknownError: AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2638, in open
fp.seek(0)
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'seek'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 205, in __call__
return func(device, token, args)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 107, in __call__
ret = self._func(*args)
File "E:/code/python/Test/example/test.py", line 108, in myfunc
im = np.asarray(Image.open(f_p), dtype='float32')
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2640, in open
fp = io.BytesIO(fp.read())
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
[[{{node image}}]]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "E:/code/python/Test/example/test.py", line 121, in <module>
test()
File "E:/code/python/Test/example/test.py", line 116, in test
img = sess.run(image, feed_dict={f_p_ph: filename})
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 929, in run
run_metadata_ptr)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1152, in _run
feed_dict_tensor, options, run_metadata)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1328, in _do_run
run_metadata)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1348, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.UnknownError: AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2638, in open
fp.seek(0)
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'seek'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 205, in __call__
return func(device, token, args)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 107, in __call__
ret = self._func(*args)
File "E:/code/python/Test/example/test.py", line 108, in myfunc
im = np.asarray(Image.open(f_p), dtype='float32')
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2640, in open
fp = io.BytesIO(fp.read())
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
[[node image (defined at E:/code/python/Test/example/test.py:113) ]]
Caused by op 'image', defined at:
File "E:/code/python/Test/example/test.py", line 121, in <module>
test()
File "E:/code/python/Test/example/test.py", line 113, in test
image = tf.py_function(myfunc, [f_p_ph], tf.float32, name='image')
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 389, in eager_py_func
return _internal_py_func(func=func, inp=inp, Tout=Tout, eager=True, name=name)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 278, in _internal_py_func
input=inp, token=token, Tout=Tout, name=name)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\gen_script_ops.py", line 73, in eager_py_func
"EagerPyFunc", input=input, token=token, Tout=Tout, name=name)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\framework\op_def_library.py", line 788, in _apply_op_helper
op_def=op_def)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\util\deprecation.py", line 507, in new_func
return func(*args, **kwargs)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\framework\ops.py", line 3300, in create_op
op_def=op_def)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\framework\ops.py", line 1801, in __init__
self._traceback = tf_stack.extract_stack()
UnknownError (see above for traceback): AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2638, in open
fp.seek(0)
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'seek'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 205, in __call__
return func(device, token, args)
File "D:\programs\anaconda3\lib\site-packages\tensorflow\python\ops\script_ops.py", line 107, in __call__
ret = self._func(*args)
File "E:/code/python/Test/example/test.py", line 108, in myfunc
im = np.asarray(Image.open(f_p), dtype='float32')
File "D:\programs\anaconda3\lib\site-packages\PIL\Image.py", line 2640, in open
fp = io.BytesIO(fp.read())
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'read'
[[node image (defined at E:/code/python/Test/example/test.py:113) ]]
Process finished with exit code 1