Java计算Iou,使用请注明出处。

package com.awaymeet.fly.common.utils; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @ClassName IouTools * @Description: * @Author Jayvia 1210287094@qq.com * @Date 2020/8/20 16:42 * @Version V1.0 **/ public class IouTools { public static volatile boolean debug = false; public static synchronized float calculationIouValue(String xmin, String ymin, String xmax, String ymax, String xminp, String yminp, String xmaxp, String ymaxp){ return calculationIouValue(Integer.parseInt((int)Float.parseFloat(xmin)+""),Integer.parseInt((int)Float.parseFloat(ymin)+""),Integer.parseInt((int)Float.parseFloat(xmax)+""),Integer.parseInt((int)Float.parseFloat(ymax)+""),Integer.parseInt((int)Float.parseFloat(xminp)+""),Integer.parseInt((int)Float.parseFloat(yminp)+""),Integer.parseInt((int)Float.parseFloat(xmaxp)+""),Integer.parseInt((int)Float.parseFloat(ymaxp)+"")); } public static synchronized float calculationIouValue(int xmin, int ymin, int xmax, int ymax, int xminp, int yminp, int xmaxp, int ymaxp){ //Algorithm core: area_intersection/(area_box1+area_box2-area_intersection) int width=xmax-xmin; int height=ymax-ymin; int widthp=xmaxp-xminp; int heightp=ymaxp-yminp; int union=width*height+widthp*heightp; if(width >= widthp){ if(xmaxp <= xmin){ if(debug)System.out.print("x left>"); return 0; }else if(xminp >= xmax){ if(debug)System.out.print("x right>"); return 0; }else{ if((xmaxp > xmin && xmaxp < xmax) && (xmin > xminp)){ if(debug)System.out.print("x left>"); if(ymaxp <= ymin){ if(debug)System.out.print("y top>"); return 0; }else if(yminp >= ymax){ if(debug)System.out.print("y bottom>"); return 0; }else{ if((ymaxp > ymin && ymaxp < ymax) && (ymin > yminp)){ if(debug)System.out.print("y top>"); int intersection=(ymaxp-ymin)*(xmaxp-xmin); return new Float(intersection)/new Float(union-intersection); }else if((yminp > ymin && yminp < ymax) && (ymax < ymaxp)){ if(debug)System.out.print("y bottom>"); int intersection=(ymax-yminp)*(xmaxp-xmin); return new Float(intersection)/new Float(union-intersection); }else{ if(height>=heightp){ if(debug)System.out.print("y middle"); int intersection=(heightp)*(xmaxp-xmin); if(debug)System.out.println(); if(debug)System.out.println("heightp:"+heightp); if(debug)System.out.println("(xmaxp-xmin):"+(xmaxp-xmin)); if(debug)System.out.println("intersection:"+intersection); if(debug)System.out.println("union:"+union); if(debug)System.out.println("union-intersection:"+(union-intersection)); return new Float(intersection)/new Float(union-intersection); }else{ int dy = ymax-ymin; int dx = xmaxp-xmin; int intersection=dy*dx; return new Float(intersection)/new Float(union-intersection); } } } }else if((xminp > xmin && xminp < xmax) && (xmax < xmaxp)){ if(debug)System.out.print("x right>"); if(ymaxp <= ymin){ if(debug)System.out.print("y top>"); return 0; }else if(yminp >= ymax){ if(debug)System.out.print("y bottom>"); return 0; }else{ if((ymaxp > ymin && ymaxp < ymax) && (ymin > yminp)){ if(debug)System.out.print("y top>"); int intersection=(ymaxp-ymin)*(xmax-xminp); return new Float(intersection)/new Float(union-intersection); }else if((yminp > ymin && yminp < ymax) && (ymax < ymaxp)){ if(debug)System.out.print("y bottom>"); int intersection=(ymax-yminp)*(xmax-xminp); return new Float(intersection)/new Float(union-intersection); }else{ if(height>=heightp){ if(debug)System.out.print("y middle"); int intersection=(heightp)*(xmaxp-xmax); return new Float(intersection)/new Float(union-intersection); }else{ int dy = ymax-ymin; int dx = xmax-xminp; int intersection=dy*dx; return new Float(intersection)/new Float(union-intersection); } } } }else{ if(debug)System.out.print("x middle"); if(ymaxp <= ymin){ if(debug)System.out.print("y top>"); return 0; }else if(yminp >= ymax){ if(debug)System.out.print("y bottom>"); return 0; }else{ if((ymaxp > ymin && ymaxp < ymax) && (ymin > yminp)){ if(debug)System.out.print("y top>"); int intersection=widthp*(ymaxp-ymin); return new Float(intersection)/new Float(union-intersection); }else if((yminp > ymin && yminp < ymax) && (ymax < ymaxp)){ if(debug)System.out.print("y bottom>"); int intersection=widthp*heightp; return new Float(intersection)/new Float(union-intersection); }else{ if(height>=heightp){ if(debug)System.out.print("y middle"); int intersection=(widthp)*(ymax-yminp); return new Float(intersection)/new Float(union-intersection); }else{ int dy = ymax-ymin; int dx = xmaxp-xminp; int intersection=dy*dx; return new Float(intersection)/new Float(union-intersection); } } } } } }else{ if(debug)System.out.println("need exchange width"); return calculationIouValue(xminp, yminp, xmaxp, ymaxp, xmin, ymin, xmax, ymax); } } }