I have trained for six epochs, but after the first iteration the predicted pixels are 0, and accuracy 0 (this happend also with cross). I have tried Adam with 0,001 … 0,000001 lr. With sgd after 6 epochs i have had an accuracy of 0,07 very small but wasnt improving the loss decrease very slow. I have rised the lr to 0.1 and the the accuracy become 0.