[Model] Refactor YOLOv7 module

fastdeploy/vision.h

@@ -24,7 +24,7 @@
 #include "fastdeploy/vision/detection/contrib/yolov5/yolov5.h"
 #include "fastdeploy/vision/detection/contrib/yolov5lite.h"
 #include "fastdeploy/vision/detection/contrib/yolov6.h"
-#include "fastdeploy/vision/detection/contrib/yolov7.h"
+#include "fastdeploy/vision/detection/contrib/yolov7/yolov7.h"
 #include "fastdeploy/vision/detection/contrib/yolov7end2end_ort.h"
 #include "fastdeploy/vision/detection/contrib/yolov7end2end_trt.h"
 #include "fastdeploy/vision/detection/contrib/yolox.h"

fastdeploy/vision/detection/contrib/yolov5/postprocessor.cc

@@ -103,9 +103,9 @@ bool YOLOv5Postprocessor::Run(const std::vector<FDTensor>& tensors, std::vector<
     float ipt_h = iter_ipt->second[0];
     float ipt_w = iter_ipt->second[1];
     float scale = std::min(out_h / ipt_h, out_w / ipt_w);
+    float pad_h = (out_h - ipt_h * scale) / 2;
+    float pad_w = (out_w - ipt_w * scale) / 2;
     for (size_t i = 0; i < (*results)[bs].boxes.size(); ++i) {
-      float pad_h = (out_h - ipt_h * scale) / 2;
-      float pad_w = (out_w - ipt_w * scale) / 2;
       int32_t label_id = ((*results)[bs].label_ids)[i];
       // clip box
       (*results)[bs].boxes[i][0] = (*results)[bs].boxes[i][0] - max_wh_ * label_id;

fastdeploy/vision/detection/contrib/yolov5/postprocessor.h

@@ -55,7 +55,7 @@ class FASTDEPLOY_DECL YOLOv5Postprocessor {
   /// Get nms_threshold, default 0.5
   float GetNMSThreshold() const { return nms_threshold_; }
 
-  /// Set multi_label, default true
+  /// Set multi_label, set true for eval, default true
   void SetMultiLabel(bool multi_label) {
     multi_label_ = multi_label;
   }

fastdeploy/vision/detection/contrib/yolov5/preprocessor.cc

@@ -24,7 +24,7 @@ YOLOv5Preprocessor::YOLOv5Preprocessor() {
   padding_value_ = {114.0, 114.0, 114.0};
   is_mini_pad_ = false;
   is_no_pad_ = false;
-  is_scale_up_ = false;
+  is_scale_up_ = true;
   stride_ = 32;
   max_wh_ = 7680.0;
 }
@@ -50,7 +50,9 @@ void YOLOv5Preprocessor::LetterBox(FDMat* mat) {
     resize_h = size_[1];
     resize_w = size_[0];
   }
-  Resize::Run(mat, resize_w, resize_h);
+  if (std::fabs(scale - 1.0f) > 1e-06) {
+    Resize::Run(mat, resize_w, resize_h);
+  }
   if (pad_h > 0 || pad_w > 0) {
     float half_h = pad_h * 1.0 / 2;
     int top = int(round(half_h - 0.1));
@@ -67,19 +69,6 @@ bool YOLOv5Preprocessor::Preprocess(FDMat* mat, FDTensor* output,
   // Record the shape of image and the shape of preprocessed image
   (*im_info)["input_shape"] = {static_cast<float>(mat->Height()),
                                static_cast<float>(mat->Width())};
-
-  // process after image load
-  double ratio = (size_[0] * 1.0) / std::max(static_cast<float>(mat->Height()),
-                                            static_cast<float>(mat->Width()));
-  if (std::fabs(ratio - 1.0f) > 1e-06) {
-    int interp = cv::INTER_AREA;
-    if (ratio > 1.0) {
-      interp = cv::INTER_LINEAR;
-    }
-    int resize_h = int(mat->Height() * ratio);
-    int resize_w = int(mat->Width() * ratio);
-    Resize::Run(mat, resize_w, resize_h, -1, -1, interp);
-  }
   // yolov5's preprocess steps
   // 1. letterbox
   // 2. convert_and_permute(swap_rb=true)

fastdeploy/vision/detection/contrib/yolov5/preprocessor.h

@@ -52,6 +52,15 @@ class FASTDEPLOY_DECL YOLOv5Preprocessor {
   /// Get padding value, size should be the same as channels
   std::vector<float> GetPaddingValue() const { return padding_value_; }
 
+  /// Set is_scale_up, if is_scale_up is false, the input image only
+  /// can be zoom out, the maximum resize scale cannot exceed 1.0, default true
+  void SetScaleUp(bool is_scale_up) {
+    is_scale_up_ = is_scale_up;
+  }
+
+  /// Get is_scale_up, default true
+  bool GetScaleUp() const { return is_scale_up_; }
+
  protected:
   bool Preprocess(FDMat* mat, FDTensor* output,
                   std::map<std::string, std::array<float, 2>>* im_info);

fastdeploy/vision/detection/contrib/yolov5/yolov5_pybind.cc

@@ -35,7 +35,8 @@ void BindYOLOv5(pybind11::module& m) {
         return make_pair(outputs, ims_info);
       })
       .def_property("size", &vision::detection::YOLOv5Preprocessor::GetSize, &vision::detection::YOLOv5Preprocessor::SetSize)
-      .def_property("padding_value", &vision::detection::YOLOv5Preprocessor::GetPaddingValue, &vision::detection::YOLOv5Preprocessor::SetPaddingValue);
+      .def_property("padding_value", &vision::detection::YOLOv5Preprocessor::GetPaddingValue, &vision::detection::YOLOv5Preprocessor::SetPaddingValue)
+      .def_property("is_scale_up", &vision::detection::YOLOv5Preprocessor::GetScaleUp, &vision::detection::YOLOv5Preprocessor::SetScaleUp);
 
   pybind11::class_<vision::detection::YOLOv5Postprocessor>(
       m, "YOLOv5Postprocessor")