This is mask detection. / 'Bad' condition does not appear.

[SeongJongKwak]

Dear cansik
This is mask detection.

import ch.bildspur.vision.*;
import ch.bildspur.vision.result.*;

import processing.core.PApplet;
import processing.core.PConstants;
import processing.core.PImage;
import processing.video.Capture;

import java.nio.file.Paths;
import java.nio.file.Path;
import java.util.List;

// speed of the yolo algorithm (trained on 416)
int detectionSize = 128;

// size of the inferenced image 
// in relation to the original
float sizeFactor = 1.0;

// camera input width and height
int inputWidth = 640;
int inputHeight = 480;

Capture cam;
PImage inputImage;

DeepVision deepVision = new DeepVision(this);
YOLONetwork yolo;
List<ObjectDetectionResult> detections;

public void setup() {
  size(640, 480, FX2D);
  frameRate(30);
  colorMode(HSB, 360, 100, 100);

  println("creating model...");
  Path model = Paths.get(sketchPath("/models/mask-yolov4.cfg")).toAbsolutePath();
  Path weights = Paths.get(sketchPath("/models/mask-yolov4.weights")).toAbsolutePath();
  
  //Path model = Paths.get(sketchPath("/models/mask-yolov3-tiny-prn.cfg")).toAbsolutePath();
  //Path weights = Paths.get(sketchPath("/models/mask-yolov3-tiny-prn.weights")).toAbsolutePath();
  
  
  
  println(" model : " + model);
  println(" weights : " + weights);


  yolo = new YOLONetwork(model, weights, detectionSize, detectionSize);
  yolo.setLabels("good", "bad", "none");

  println("loading yolo model...");
  yolo.setup();

  String[] cams = Capture.list();
  println("Cameras: ");
  printArray(cams);

  //cam = new Capture(this, inputWidth, inputHeight, cams[0]);
  //cam.start();
  inputImage = new PImage(int(inputWidth * sizeFactor), int(inputHeight * sizeFactor), RGB);  
  inputImage = loadImage("victor-he-lf1ivjbtF2Q-unsplash.jpg");
  inputImage = loadImage("jeremy-stenuit-3mErKfgolzM-unsplash.jpg");  
  inputImage = loadImage("test2.jpg");  
  // inputImage = loadImage("test3.jpg");  
  inputImage.resize(width,height);
  
}

public void draw() {
  background(55);

  //if (cam.available()) {
  //  cam.read();
  //}
  //inputImage.copy(cam, 0, 0, cam.width, cam.height, 0, 0, inputImage.width, inputImage.height);



  yolo.setConfidenceThreshold(0.50f);
  detections = yolo.run(inputImage);
  image(inputImage, 0, 0);
  // cam.filter(GRAY);  image(cam, 0, 0);

  scale(1.0 / sizeFactor);
  for (ObjectDetectionResult detection : detections) {    
    noFill();
    strokeWeight(2f);

    switch(detection.getClassId()) {
    case 0:
      stroke(120, 80, 100);
      break;

    case 1:
      stroke(40, 80, 100);
      break;

    case 2:
      stroke(0, 80, 100);
      break;
    }
    noFill(); 
    rect(detection.getX(), detection.getY(), detection.getWidth(), detection.getHeight());


    fill(0,250); noStroke();
    String label = detection.getClassName();
    rect(detection.getX()-50, detection.getY()-25, 100, 20);
    fill(255); textAlign(CENTER);
    text(label + " " + nf(detection.getConfidence(), 0, 2), detection.getX(), detection.getY()-10);
    
  }

  surface.setTitle("Mask YOLO Test - FPS: " + Math.round(frameRate));
}

[result image]
https://drive.google.com/file/d/1sSd4qRMXRbAwwkpTXC8PIB2IRILEFB2s/view?usp=sharing

1. 'Bad' condition does not appear.
2. I used the yolo-v4 you trained.
   Why not? help me.