CODEWITHSUNDEEP
tensorflowconvolution
judyzha
judyzha

Reputation: 377

List of Tensors when single Tensor expected

I use concat to get tensors as the input of CNN. But got the error: List of Tensors when single Tensor expected

image_raw = img.tobytes()
image = tf.decode_raw(image_raw, tf.uint8)
image = tf.reshape(image, [1, image_height, image_width, 3])

image_val = image
for i in range(batch_size-1):
    image_val = tf.concat(0,[image_val,image])
return image_val

I have searched the answers for these question, add image_val = tf.stack([image_val],0) before return, but still get the same error ,why?

 **build  environment：**
 TensorFlow version 0.12
 python 3.5

Upvotes: 1

Views: 2893

Answers (2)

Frederik Elischberger
Frederik Elischberger

Reputation: 106

Maybe check again the type of image_height, image_width because sometimes it is necessary to cast these into an integer dtype, e.g. tf.cast(image_height, tf.int32)

Upvotes: 0

Franck Dernoncourt
Franck Dernoncourt

Reputation: 83177

The error List of Tensors when single Tensor expected comes from the fact you wrote tf.concat(0,[image_val,image]) instead of tf.concat([image_val,image],0).

Upvotes: 0

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