C#实现控制台传参调用YoloV5模型进行人体识别
一、项目地址
https://gitee.com/qq28069933146_admin/yoloconsole_body
二、代码解析
1、获取输入参数
//static void Main(string[] args)方法中运行如下代码:
string toBeTestedImgPathStr = AppContext.BaseDirectory + "\\test.jpg";
if (args.Length > 0)
{
toBeTestedImgPathStr = args[0];
}
2、C#加载YoloV5的onnx模型
YoloScorer<YoloCocoP5Model> scorer = new YoloScorer<YoloCocoP5Model>(modelPath); // 选择模型
3、使用YoloV5模型进行预测
List<YoloPrediction> predictions = scorer.Predict(image); // 预测
4、自定义人体信息类
该类用于在控制台打印人体位置信息
/// <summary>
/// 人体信息
/// </summary>
public class BodyInfo
{
public int Left { get; set; } = 0;
public int Top { get; set; } = 0;
public int Right { get; set; } = 0;
public int Bottom { get; set; } = 0;
/// <summary>
/// 概率
/// </summary>
public double Score { get; set; } = 0;
public BodyInfo(int left, int top, int right, int bottom, double score)
{
Left = left;
Top = top;
Right = right;
Bottom = bottom;
Score = score;
}
}
5、用BodyInfo保存人体信息并在图片上标注人体位置
// 保存人体位置信息
List<BodyInfo> bodyInfos = new List<BodyInfo>();
// 标注图片
foreach (YoloPrediction prediction in predictions)
{
if (prediction.Label.Name == "person") // prediction.Label.Id == "1"
{
double score = Math.Round(prediction.Score, 2); // 概率(保留两位小数)
var (x, y) = (prediction.Rectangle.Left - 3, prediction.Rectangle.Top - 23); // 标注信息的位置信息
// 标说明
image.Mutate(a => a.DrawText($"{prediction.Label.Name} ({score})",
font, prediction.Label.Color, new PointF(x, y)));
// 框位置
image.Mutate(a => a.DrawPolygon(prediction.Label.Color, 1,
new PointF(prediction.Rectangle.Left, prediction.Rectangle.Top),
new PointF(prediction.Rectangle.Right, prediction.Rectangle.Top),
new PointF(prediction.Rectangle.Right, prediction.Rectangle.Bottom),
new PointF(prediction.Rectangle.Left, prediction.Rectangle.Bottom)
));
bodyInfos.Add(new BodyInfo((int)prediction.Rectangle.Left, (int)prediction.Rectangle.Top, (int)prediction.Rectangle.Right, (int)prediction.Rectangle.Bottom, score));
}
}
6、保存图片
image.SaveAsync(toBeTestedImgNewNameStr);
7、控制台输出结果(json字符串格式)
string resultStr = JsonConvert.SerializeObject(bodyInfos);
Console.WriteLine(resultStr);
8、运行效果
控制台调用,输入参数即可(如:YoloConsole.exe -E:);效果如下:
本文来自博客园,作者:꧁执笔小白꧂,转载请注明原文链接:https://www.cnblogs.com/qq2806933146xiaobai/p/18289303