Detailed description

Download cifar-10

cifar10_dir = "data/cifar-10-batches-py"

# X_train : 50000 x 32 x 32 x 3 pixels (between 0~255)
# X_test  : 10000 x 32 x 32 x 3 pixels (between 0~255)
# y_train : 50000 (label: 0~9)
# y_test  : 10000 (label: 0~9)
X_train, y_train, X_test, y_test = load_CIFAR10(cifar10_dir)