[Other] Add MattingResult Free() (#705)

* add onnx_ort_runtime demo

* rm in requirements

* support batch eval

* fixed MattingResults bug

* move assignment for DetectionResult

* integrated x2paddle

* add model convert readme

* update readme

* re-lint

* add processor api

* Add MattingResult Free

Author: wjj19950828

fastdeploy/vision/common/result.cc

@@ -378,6 +378,13 @@ MattingResult::MattingResult(const MattingResult& res) {
 }
 
 void MattingResult::Clear() {
+  alpha.clear();
+  foreground.clear();
+  shape.clear();
+  contain_foreground = false;
+}
+
+void MattingResult::Free() {
   std::vector<float>().swap(alpha);
   std::vector<float>().swap(foreground);
   std::vector<int64_t>().swap(shape);

fastdeploy/vision/common/result.h

@@ -316,9 +316,12 @@ struct FASTDEPLOY_DECL MattingResult : public BaseResult {
 
   MattingResult() {}
   MattingResult(const MattingResult& res);
-  /// Clear detection result
+  /// Clear matting result
   void Clear();
 
+  /// Free matting result
+  void Free();
+
   void Reserve(int size);
 
   void Resize(int size);