function[hough_circle?para]=hough_circle（BWstep_rstep_angler_minr_maxp）

[m?n]=size（BW）;
size_r=round（（r_max-r_min）/step_r）+1;
size_angle=round（2*pi/step_angle）;
hough_space=zeros（mnsize_r）;
[rowscols]=find（BW）;
ecount=size（rows）;
for?i=1:ecount
????for?r=1:size_r
????????for?k=1:size_angle
????????????a=round（rows（i）-（r_min+（r-1）*step_r）*cos（k*step_angle））;
????????????b=round（cols（i）-（r_min+（r-1）*step_r）*sin（k*step_angle））;
????????????if（a>0&&a<=m&&b>0&&b<=n）
????????????????hough_space（abr）=hough_space（abr）+1;
????????????end
????????end
????end
end
max_para=max（max（max（hough_space）））;
index=find（hough_space>=max_para*p）;
length=size（index）;
hough_circle=false（mn）;
for?i=1:ecount
????for?k=1:length
???????par3=floor（index（k）/（m*n））+1;
???????par2=floor（（index（k）-（par3-1）*（m*n））/m）+1;
???????par1=index（k）-（par3-1）*（m*n）-（par2-1）*m;
???????if（（rows（i）-par1）^2+（cols（i）-par2）^2<（r_min+（par3-1）*step_r）^2+5&&（rows（i）-par1）^2+（cols（i）-par2）^2>（r_min+（par3-1）*step_r）^2-5）
???????????hough_circle（rows（i）cols（i））=true;
???????????
???????end
????end
end
for?k=1:length
????par3=floor（index（k）/（m*n））+1;
????par2=floor（（index（k）-（par3-1）*（m*n））/m）+1;
????par1=index（k）-（par3-1）*（m*n）-（par2-1）*m;
????par3=r_min+（par3-1）*step_r;
????%?fprintf（1‘Center?%d?%d?radius?%d\n‘par1par2par3）;
????para（:k）=[par1par2par3];
end
????
????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1415??2019-11-28?19:21??打靶環數判定\hough_circle.m

?????文件????????297??2019-11-27?11:18??打靶環數判定\Lab1_1.m

?????文件?????????97??2019-11-29?18:07??打靶環數判定\Lab1_2.m

?????文件????????255??2019-11-27?11:27??打靶環數判定\Lab1_3.m

?????文件????????714??2019-11-27?11:47??打靶環數判定\Lab2_1.m

?????文件????????420??2019-11-28?19:43??打靶環數判定\Lab2_2.m

?????文件????????443??2019-11-28?19:49??打靶環數判定\Lab3_1.m

?????文件????????592??2019-11-29?09:11??打靶環數判定\Lab3_2.m

?????文件????????722??2019-11-29?09:23??打靶環數判定\Lab3_3.m

?????文件???????1385??2019-11-29?18:26??打靶環數判定\Lab3_4.m

?????文件??????39212??2019-11-25?21:21??打靶環數判定\Target.jpg

?????文件??????39225??2019-11-27?11:30??打靶環數判定\Target1.jpg

?????文件??????39289??2019-11-29?10:03??打靶環數判定\Target1_11.jpg

?????文件??????39367??2019-11-29?14:37??打靶環數判定\Target1_6.jpg

?????文件??????39308??2019-11-29?18:01??打靶環數判定\Target1_78.jpg

?????文件??????39335??2019-11-29?17:48??打靶環數判定\Target1_8.jpg

?????目錄??????????0??2020-04-08?15:08??打靶環數判定

-----------?---------??----------?-----??----

???????????????242076????????????????????17