initial commit and version 1.0

moviepy/video/fx/GammaCorrection.py

@@ -0,0 +1,20 @@
+from dataclasses import dataclass
+
+from moviepy.Clip import Clip
+from moviepy.Effect import Effect
+
+
+@dataclass
+class GammaCorrection(Effect):
+    """Gamma-correction of a video clip."""
+
+    gamma: float
+
+    def apply(self, clip: Clip) -> Clip:
+        """Apply the effect to the clip."""
+
+        def filter(im):
+            corrected = 255 * (1.0 * im / 255) ** self.gamma
+            return corrected.astype("uint8")
+
+        return clip.image_transform(filter)