train_step1 all pixels are classified as backgound(black)

[LigZhong]

I did some small change and now the train step 1 can run but all pixels are classified as backgound(black).
Anyone has this same issue?

Initially the build_loss function is
def build_loss(self,seg_layer,lab_holder):
lab_reform = tf.expand_dims(lab_holder,-1)
lab_reform = tf.image.resize_images(seg_layer,tf.shape(lab_reform)[1:3])
lab_reform = tf.squeeze(lab_reform)
seg_loss = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(logits=seg_layer,labels=lab_reform))

I changed it to
def build_loss(self,seg_layer,lab_holder):
# lab_reform = tf.expand_dims(lab_holder, -1)
# lab_reform = tf.image.resize_images(seg_layer, tf.shape(lab_reform)[1:3]) # z00445456
seg_reform = tf.image.resize_images(seg_layer, tf.shape(lab_holder)[1:3]) # z00445456
# lab_reform = tf.squeeze(lab_reform)
seg_loss = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(logits=seg_reform,labels=lab_holder))

and it can run without error. But the result is weird. All pixels are classified as backgound.

[ridasalam]

Yes, I have the same issue

[kunkun007]

Why you change the loss part? I can run train_step1.py and has the same issue with yours.