ValueError: Input 0 is incompatible with layer conv2d_1: expected ndim=4, found ndim=3












1














After inquiring into the questions already asked about this problem, I keep presenting it. Im trying to classify letters from A to D. All input images are 64x64 and graycolor.



The first layer of my CNN is:



model = Sequential()
model.add(Conv2D(32, (3, 3), input_shape = input_shape, activation = 'relu'))


And input_shape it's coming from:



# Define the number of classes
num_classes = 4
labels_name={'A':0,'B':1,'C':2,'D':3}

img_data_list=
labels_list=

for dataset in data_dir_list:
img_list=os.listdir(data_path+'/'+ dataset)
print ('Loading the images of dataset-'+'{}n'.format(dataset))
label = labels_name[dataset]
for img in img_list:
input_img=cv2.imread(data_path + '/'+ dataset + '/'+ img )
input_img=cv2.cvtColor(input_img, cv2.COLOR_BGR2GRAY)
input_img_resize=cv2.resize(input_img,(128,128))
img_data_list.append(input_img_resize)
labels_list.append(label)

img_data = np.array(img_data_list)
img_data = img_data.astype('float32')
img_data /= 255
print (img_data.shape)

labels = np.array(labels_list)
print(np.unique(labels,return_counts=True))

#convert class labels to on-hot encoding
Y = np_utils.to_categorical(labels, num_classes)

#Shuffle the dataset
x,y = shuffle(img_data,Y, random_state=2)

# Split the dataset
X_train, X_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=2)

#Defining the model
input_shape=img_data[0].shape
print(input_shape)


Thanks,










share|improve this question






















  • What is the value of input_shape?
    – today
    Nov 11 at 18:58










  • input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
    – J. Dav
    Nov 11 at 20:40
















1














After inquiring into the questions already asked about this problem, I keep presenting it. Im trying to classify letters from A to D. All input images are 64x64 and graycolor.



The first layer of my CNN is:



model = Sequential()
model.add(Conv2D(32, (3, 3), input_shape = input_shape, activation = 'relu'))


And input_shape it's coming from:



# Define the number of classes
num_classes = 4
labels_name={'A':0,'B':1,'C':2,'D':3}

img_data_list=
labels_list=

for dataset in data_dir_list:
img_list=os.listdir(data_path+'/'+ dataset)
print ('Loading the images of dataset-'+'{}n'.format(dataset))
label = labels_name[dataset]
for img in img_list:
input_img=cv2.imread(data_path + '/'+ dataset + '/'+ img )
input_img=cv2.cvtColor(input_img, cv2.COLOR_BGR2GRAY)
input_img_resize=cv2.resize(input_img,(128,128))
img_data_list.append(input_img_resize)
labels_list.append(label)

img_data = np.array(img_data_list)
img_data = img_data.astype('float32')
img_data /= 255
print (img_data.shape)

labels = np.array(labels_list)
print(np.unique(labels,return_counts=True))

#convert class labels to on-hot encoding
Y = np_utils.to_categorical(labels, num_classes)

#Shuffle the dataset
x,y = shuffle(img_data,Y, random_state=2)

# Split the dataset
X_train, X_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=2)

#Defining the model
input_shape=img_data[0].shape
print(input_shape)


Thanks,










share|improve this question






















  • What is the value of input_shape?
    – today
    Nov 11 at 18:58










  • input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
    – J. Dav
    Nov 11 at 20:40














1












1








1


1





After inquiring into the questions already asked about this problem, I keep presenting it. Im trying to classify letters from A to D. All input images are 64x64 and graycolor.



The first layer of my CNN is:



model = Sequential()
model.add(Conv2D(32, (3, 3), input_shape = input_shape, activation = 'relu'))


And input_shape it's coming from:



# Define the number of classes
num_classes = 4
labels_name={'A':0,'B':1,'C':2,'D':3}

img_data_list=
labels_list=

for dataset in data_dir_list:
img_list=os.listdir(data_path+'/'+ dataset)
print ('Loading the images of dataset-'+'{}n'.format(dataset))
label = labels_name[dataset]
for img in img_list:
input_img=cv2.imread(data_path + '/'+ dataset + '/'+ img )
input_img=cv2.cvtColor(input_img, cv2.COLOR_BGR2GRAY)
input_img_resize=cv2.resize(input_img,(128,128))
img_data_list.append(input_img_resize)
labels_list.append(label)

img_data = np.array(img_data_list)
img_data = img_data.astype('float32')
img_data /= 255
print (img_data.shape)

labels = np.array(labels_list)
print(np.unique(labels,return_counts=True))

#convert class labels to on-hot encoding
Y = np_utils.to_categorical(labels, num_classes)

#Shuffle the dataset
x,y = shuffle(img_data,Y, random_state=2)

# Split the dataset
X_train, X_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=2)

#Defining the model
input_shape=img_data[0].shape
print(input_shape)


Thanks,










share|improve this question













After inquiring into the questions already asked about this problem, I keep presenting it. Im trying to classify letters from A to D. All input images are 64x64 and graycolor.



The first layer of my CNN is:



model = Sequential()
model.add(Conv2D(32, (3, 3), input_shape = input_shape, activation = 'relu'))


And input_shape it's coming from:



# Define the number of classes
num_classes = 4
labels_name={'A':0,'B':1,'C':2,'D':3}

img_data_list=
labels_list=

for dataset in data_dir_list:
img_list=os.listdir(data_path+'/'+ dataset)
print ('Loading the images of dataset-'+'{}n'.format(dataset))
label = labels_name[dataset]
for img in img_list:
input_img=cv2.imread(data_path + '/'+ dataset + '/'+ img )
input_img=cv2.cvtColor(input_img, cv2.COLOR_BGR2GRAY)
input_img_resize=cv2.resize(input_img,(128,128))
img_data_list.append(input_img_resize)
labels_list.append(label)

img_data = np.array(img_data_list)
img_data = img_data.astype('float32')
img_data /= 255
print (img_data.shape)

labels = np.array(labels_list)
print(np.unique(labels,return_counts=True))

#convert class labels to on-hot encoding
Y = np_utils.to_categorical(labels, num_classes)

#Shuffle the dataset
x,y = shuffle(img_data,Y, random_state=2)

# Split the dataset
X_train, X_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=2)

#Defining the model
input_shape=img_data[0].shape
print(input_shape)


Thanks,







python tensorflow keras conv-neural-network






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asked Nov 11 at 13:48









J. Dav

113




113












  • What is the value of input_shape?
    – today
    Nov 11 at 18:58










  • input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
    – J. Dav
    Nov 11 at 20:40


















  • What is the value of input_shape?
    – today
    Nov 11 at 18:58










  • input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
    – J. Dav
    Nov 11 at 20:40
















What is the value of input_shape?
– today
Nov 11 at 18:58




What is the value of input_shape?
– today
Nov 11 at 18:58












input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
– J. Dav
Nov 11 at 20:40




input_shape=img_data[0].shape and img_data is coming from input_shape=img_data[0].shape
– J. Dav
Nov 11 at 20:40












1 Answer
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oldest

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0














Conv2d expects input of shape (batchsize, w, h, filters).



You need to add a reshape to fit the data before the conv layer:



 model.add(Reshape((64, 64, 1)))


This will set your model dimensions to [None, 64,64,1] and should be fine for Conv2d.






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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    Conv2d expects input of shape (batchsize, w, h, filters).



    You need to add a reshape to fit the data before the conv layer:



     model.add(Reshape((64, 64, 1)))


    This will set your model dimensions to [None, 64,64,1] and should be fine for Conv2d.






    share|improve this answer


























      0














      Conv2d expects input of shape (batchsize, w, h, filters).



      You need to add a reshape to fit the data before the conv layer:



       model.add(Reshape((64, 64, 1)))


      This will set your model dimensions to [None, 64,64,1] and should be fine for Conv2d.






      share|improve this answer
























        0












        0








        0






        Conv2d expects input of shape (batchsize, w, h, filters).



        You need to add a reshape to fit the data before the conv layer:



         model.add(Reshape((64, 64, 1)))


        This will set your model dimensions to [None, 64,64,1] and should be fine for Conv2d.






        share|improve this answer












        Conv2d expects input of shape (batchsize, w, h, filters).



        You need to add a reshape to fit the data before the conv layer:



         model.add(Reshape((64, 64, 1)))


        This will set your model dimensions to [None, 64,64,1] and should be fine for Conv2d.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 11 at 20:14









        Dinari

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