基于深度学习YOLOv5神经网络水果蔬菜检测识别系统，其能识别的水果蔬菜有15种，# 水果的种类 names: ['黑葡萄', '绿葡萄', '樱桃', '西瓜', '龙眼', '香蕉', '芒果', '菠萝', '柚子', '草莓', '苹果', '柑橘', '火龙果', '梨子', '花生', '黄瓜', '土豆', '大蒜', '茄子', '白萝卜', '辣椒', '胡萝卜', '花菜', '白菜', '番茄', '西蓝花', '橙子']，见如下
第一步：YOLOv5介绍
YOLOv5是一种目标检测算法，它是YOLO（You Only Look Once）系列的最新版本。YOLOv5在YOLOv4的基础上进行了改进和优化，以提高检测的准确性和速度。
YOLOv5采用了一些新的技术和方法来改进目标检测的性能。其中包括以下几个方面：
损失函数：YOLOv5使用了CIOU_Loss作为bounding box的损失函数。CIOU_Loss是一种改进的IOU_Loss，可以更好地衡量目标框的位置和大小。
非极大值抑制（NMS）：YOLOv5使用NMS来抑制重叠的边界框，以减少重复检测的问题。
聚类anchors：YOLOv5使用k-means聚类算法来生成anchors，这些anchors用于检测不同尺度的目标。
总的来说，YOLOv5在YOLOv4的基础上进行了一些改进和优化，以提高目标检测的准确性和速度。
标注数据，YOLOv5的训练和测试步骤，可以参考我的这篇博客：手把手教你通过YOLOv5训练自己的目标检测模型_yolov5怎么测试自己训练的结果-CSDN博客
第二步：YOLOv5网络结构
第三步：代码展示
# Ultralytics YOLO 🚀, AGPL-3.0 license
from pathlib import Path
from ultralytics.engine.model import Model
from ultralytics.models import yolo
from ultralytics.nn.tasks import ClassificationModel, DetectionModel, OBBModel, PoseModel, SegmentationModel, WorldModel
from ultralytics.utils import ROOT, yaml_load
class YOLO(Model):
"""YOLO (You Only Look Once) object detection model."""
def __init__(self, model="yolo11n.pt", task=None, verbose=False):
"""Initialize YOLO model, switching to YOLOWorld if model filename contains '-world'."""
path = Path(model)
if "-world" in path.stem and path.suffix in {".pt", ".yaml", ".yml"}: # if YOLOWorld PyTorch model
new_instance = YOLOWorld(path, verbose=verbose)
self.__class__ = type(new_instance)
self.__dict__ = new_instance.__dict__
else:
# Continue with default YOLO initialization
super().__init__(model=model, task=task, verbose=verbose)
@property
def task_map(self):
"""Map head to model, trainer, validator, and predictor classes."""
return {
"classify": {
"model": ClassificationModel,
"trainer": yolo.classify.ClassificationTrainer,
"validator": yolo.classify.ClassificationValidator,
"predictor": yolo.classify.ClassificationPredictor,
},
"detect": {
"model": DetectionModel,
"trainer": yolo.detect.DetectionTrainer,
"validator": yolo.detect.DetectionValidator,
"predictor": yolo.detect.DetectionPredictor,
},
"segment": {
"model": SegmentationModel,
"trainer": yolo.segment.SegmentationTrainer,
"validator": yolo.segment.SegmentationValidator,
"predictor": yolo.segment.SegmentationPredictor,
},
"pose": {
"model": PoseModel,
"trainer": yolo.pose.PoseTrainer,
"validator": yolo.pose.PoseValidator,
"predictor": yolo.pose.PosePredictor,
},
"obb": {
"model": OBBModel,
"trainer": yolo.obb.OBBTrainer,
"validator": yolo.obb.OBBValidator,
"predictor": yolo.obb.OBBPredictor,
},
}
class YOLOWorld(Model):
"""YOLO-World object detection model."""
def __init__(self, model="yolov8s-world.pt", verbose=False) -> None:
"""
Initialize YOLOv8-World model with a pre-trained model file.
Loads a YOLOv8-World model for object detection. If no custom class names are provided, it assigns default
COCO class names.
Args:
model (str | Path): Path to the pre-trained model file. Supports *.pt and *.yaml formats.
verbose (bool): If True, prints additional information during initialization.
"""
super().__init__(model=model, task="detect", verbose=verbose)
# Assign default COCO class names when there are no custom names
if not hasattr(self.model, "names"):
self.model.names = yaml_load(ROOT / "cfg/datasets/coco8.yaml").get("names")
@property
def task_map(self):
"""Map head to model, validator, and predictor classes."""
return {
"detect": {
"model": WorldModel,
"validator": yolo.detect.DetectionValidator,
"predictor": yolo.detect.DetectionPredictor,
"trainer": yolo.world.WorldTrainer,
}
}
def set_classes(self, classes):
"""
Set classes.
Args:
classes (List(str)): A list of categories i.e. ["person"].
"""
self.model.set_classes(classes)
# Remove background if it's given
background = " "
if background in classes:
classes.remove(background)
self.model.names = classes
# Reset method class names
# self.predictor = None # reset predictor otherwise old names remain
if self.predictor:
self.predictor.model.names = classes
第四步：统计训练过程的一些指标，相关指标都有
第五步：运行（支持图片、文件夹、摄像头和视频功能）
第六步：整个工程的内容
有训练代码和训练好的模型以及训练过程，提供数据，提供GUI界面代码
项目完整文件下载请见演示与介绍视频的简介处给出：➷➷➷
PyTorch框架——基于深度学习YOLOv5神经网络水果蔬菜检测识别系统_哔哩哔哩_bilibili
