Add image perspective editing and related tools

- Implemented the Image Perspective tool for editing image corners in Blender.
- Created a new operator `EditImagePerspective` to handle the perspective transformation.
- Added a preview feature for the perspective adjustment.
- Introduced the `ImagePolylineTool` for editing image masks with polylines.
- Developed backend support for Real-ESRGAN model inference, including ONNX integration.
- Added functionality for image masking and background removal.
- Created unit tests for the Real-ESRGAN ONNX model to ensure correct preprocessing and inference.

src/anyimage/server/model_manager.py

@@ -17,6 +17,8 @@ class ModelSessionCache:
         self.da3_key = None
         self.moge_model = None
         self.moge_key = None
+        self.realesrgan_model = None
+        self.realesrgan_key = None
 
     def get_ben2(self, model_dir, device):
         requested_device = getattr(device, "type", device)
@@ -68,6 +70,18 @@ class ModelSessionCache:
         self.moge_key = key
         return model
 
+    def get_realesrgan(self, model_dir, requested_device):
+        from .models.onnx_realesrgan import create_session
+
+        key = (str(Path(model_dir).resolve()), requested_device, "onnx")
+        if self.realesrgan_model is not None and self.realesrgan_key == key:
+            return self.realesrgan_model
+        self.release_realesrgan()
+        model = create_session(model_dir, requested_device)
+        self.realesrgan_model = model
+        self.realesrgan_key = key
+        return model
+
     def release_ben2(self):
         self.ben2_model = None
         self.ben2_key = None
@@ -83,13 +97,20 @@ class ModelSessionCache:
         self.moge_key = None
         self._release_runtime_cache()
 
+    def release_realesrgan(self):
+        self.realesrgan_model = None
+        self.realesrgan_key = None
+        self._release_runtime_cache()
+
     def close(self):
         self.ben2_model = None
         self.da3_model = None
         self.moge_model = None
+        self.realesrgan_model = None
         self.ben2_key = None
         self.da3_key = None
         self.moge_key = None
+        self.realesrgan_key = None
         self._release_runtime_cache()
 
     def snapshot(self):
@@ -97,6 +118,11 @@ class ModelSessionCache:
             "ben2": Path(self.ben2_key[0]).name if self.ben2_key else "",
             "da3": Path(self.da3_key[0]).name if self.da3_key else "",
             "moge2": Path(self.moge_key[0]).name if self.moge_key else "",
+            "realesrgan": (
+                Path(self.realesrgan_key[0]).name
+                if self.realesrgan_key
+                else ""
+            ),
         }
 
     def _release_runtime_cache(self):
@@ -143,6 +169,9 @@ class ModelManager:
     def get_moge2(self, model_dir, device):
         return self.sessions.get_moge2(model_dir, device)
 
+    def get_realesrgan(self, model_dir, device):
+        return self.sessions.get_realesrgan(model_dir, device)
+
     def snapshot(self):
         return {"loaded": self.sessions.snapshot()}