add ae sub folder

stylegan2_ae/layers/from_rgb.py

@@ -0,0 +1,28 @@
+import tensorflow as tf
+
+from stylegan2_ae.layers.conv import Conv2D
+from stylegan2_ae.layers.bias_act import BiasAct
+
+
+class FromRGB(tf.keras.layers.Layer):
+    def __init__(self, fmaps, res, **kwargs):
+        super(FromRGB, self).__init__(**kwargs)
+        self.fmaps = fmaps
+        self.res = res
+
+        self.conv = Conv2D(in_res=res, in_fmaps=3, fmaps=self.fmaps, kernel=1, up=False, down=False,
+                           resample_kernel=None, gain=1.0, lrmul=1.0, name='conv')
+        self.apply_bias_act = BiasAct(lrmul=1.0, act='lrelu', name='bias')
+
+    def call(self, inputs, training=None, mask=None):
+        y = self.conv(inputs)
+        y = self.apply_bias_act(y)
+        return y
+
+    def get_config(self):
+        config = super(FromRGB, self).get_config()
+        config.update({
+            'fmaps': self.fmaps,
+            'res': self.res,
+        })
+        return config