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  • 大小: 761KB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-06-29
  • 語言: Matlab
  • 標簽: 車牌定位??

資源簡介

對給定圖片,通過不斷縮小矩形區域,從而中對車牌進行最終定位,給出matlab程序,和演示視頻。

資源截圖

代碼片段和文件信息

function?lpr_loc()
%?license?plate?recognition?-?car?plate?location?based?on?color?model
%?modified?by?ZHAO?Hui?April?30th2005
I=imread(‘Car.jpg‘);
[yxz]=size(I);
myI=double(I);
%%%%%%%%%%%?RGB?to?HSI??%%%%%%%%
tic???%?測定算法執行的時間,開始計時

%%%%%%%%%%%?統計分析?%%%%%%%%%%%%%%%
%%%%%%%%?Y?方向?%%%%%%%%%%
Blue_y=zeros(y1);
for?i=1:y
????for?j=1:x
????????????if((myI(ij1)<=121)&&myI(ij1)>=110&&((myI(ij2)<=155)&&(myI(ij2)>=141))&&((myI(ij3)<=240)&&(myI(ij3)>=210)))?
%?藍色RGB的灰度范圍
???????????????Blue_y(i1)=?Blue_y(i1)+1;?????%?藍色象素點統計??????????
???????????end??
????end???????
end
[temp?MaxY]=max(Blue_y);????????%?Y方向車牌區域確定
PY1=MaxY;
while?((Blue_y(PY11)>=5)&&(PY1>1))
???????PY1=PY1-1;
end????
PY2=MaxY;
while?((Blue_y(PY21)>=5)&&(PY2???????PY2=PY2+1;
end
IY=I(PY1:PY2::);

%%%%%%%%?X?方向?%%%%%%%%%%?
Blue_x=zeros(1x);?????????????%?進一步確定X方向的車牌區域
for?j=1:x
????for?i=PY1:PY2
????????????if((myI(ij1)<=121)&&myI(ij1)>=110&&((myI(ij2)<=155)&&(myI(ij2)>=141))&&((myI(ij3)<=240)&&(myI(ij3)>=210)))?
???????????????Blue_x(1j)=?Blue_x(1j)+1;???????????????
???????????end??
????end???????
end

PX1=1;
while?((Blue_x(1PX1)<3)&&(PX1???????PX1=PX1+1;
end????
PX2=x;
while?((Blue_x(1PX2)<3)&&(PX2>PX1))
???????PX2=PX2-1;
end
PX1=PX1-2;?%?對車牌區域的修正
PX2=PX2+2;

Plate=I(PY1:PY2PX1-2:PX2:);
t=toc?%?讀取計時
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figureimshow(I);
figureplot(Blue_y);grid
figureplot(Blue_x);grid
figureimshow(IY);
figureimshow(Plate);

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????108279??2004-01-15?05:14??車牌定位\Car.JPG
?????文件????????1605??2014-10-18?11:21??車牌定位\test.m
?????文件??????732379??2014-10-18?11:24??車牌定位\車牌定位.exe
?????目錄???????????0??2015-02-17?09:38??車牌定位\

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