def testTwiceSaturation(self):
x_shape = [2, 2, 3]
x_data = [0, 5, 13, 54, 135, 226, 37, 8, 234, 90, 255, 1]
x_np = np.array(x_data, dtype=np.uint8).reshape(x_shape)
saturation_factor = 2.0
y_data = [0, 5, 13, 0, 106, 226, 30, 0, 234, 89, 255, 0]
y_np = np.array(y_data, dtype=np.uint8).reshape(x_shape)
with self.test_session():
x = constant_op.constant(x_np, shape=x_shape)
y = image_ops.adjust_saturation(x, saturation_factor)
y_tf = y.eval()
self.assertAllEqual(y_tf, y_np)
def testTwiceSaturation(self):
x_shape = [2, 2, 3]
x_data = [0, 5, 13, 54, 135, 226, 37, 8, 234, 90, 255, 1]
x_np = np.array(x_data, dtype=np.uint8).reshape(x_shape)
saturation_factor = 2.0
y_data = [0, 5, 13, 0, 106, 226, 30, 0, 234, 89, 255, 0]
y_np = np.array(y_data, dtype=np.uint8).reshape(x_shape)
with self.test_session():
x = constant_op.constant(x_np, shape=x_shape)
y = image_ops.adjust_saturation(x, saturation_factor)
y_tf = y.eval()
self.assertAllEqual(y_tf, y_np)
def testHalfSaturation(self):
x_shape = [2, 2, 3]
x_data = [0, 5, 13, 54, 135, 226, 37, 8, 234, 90, 255, 1]
x_np = np.array(x_data, dtype=np.uint8).reshape(x_shape)
saturation_factor = 0.5
y_data = [6, 9, 13, 140, 180, 226, 135, 121, 234, 172, 255, 128]
y_np = np.array(y_data, dtype=np.uint8).reshape(x_shape)
with self.test_session():
x = constant_op.constant(x_np, shape=x_shape)
y = image_ops.adjust_saturation(x, saturation_factor)
y_tf = y.eval()
self.assertAllEqual(y_tf, y_np)
def testHalfSaturation(self):
x_shape = [2, 2, 3]
x_data = [0, 5, 13, 54, 135, 226, 37, 8, 234, 90, 255, 1]
x_np = np.array(x_data, dtype=np.uint8).reshape(x_shape)
saturation_factor = 0.5
y_data = [6, 9, 13, 140, 180, 226, 135, 121, 234, 172, 255, 128]
y_np = np.array(y_data, dtype=np.uint8).reshape(x_shape)
with self.test_session():
x = constant_op.constant(x_np, shape=x_shape)
y = image_ops.adjust_saturation(x, saturation_factor)
y_tf = y.eval()
self.assertAllEqual(y_tf, y_np)