《MATLAB應(yīng)用》課程設(shè)計(jì)

1、MATLAB應(yīng)用課程設(shè)計(jì)一、課程設(shè)計(jì)的目的綜合運(yùn)用MATLAB工具箱實(shí)現(xiàn)圖像處理的GUI程序設(shè)計(jì)。二、課程設(shè)計(jì)的基本要求1） 熟悉和掌握MATLAB程序設(shè)計(jì)方法2） 掌握MATLAB GUI程序設(shè)計(jì)3） 熟悉MATLAB圖像處理工具箱4） 學(xué)會(huì)運(yùn)用MATLAB工具箱對(duì)圖像進(jìn)行處理和分析三、課程設(shè)計(jì)的內(nèi)容要求利用MATLAB GUI設(shè)計(jì)實(shí)現(xiàn)圖像處理的圖形用戶界面，利用MATLAB圖像處理工具箱實(shí)現(xiàn)以下的圖像處理功能：雙擊打開MATLAB 7.0FileNewGUI單擊axes1按鈕調(diào)整axes1大小單擊OK按鈕調(diào)整按鈕大小和顏色，修改名稱。1） 圖像的讀取和保存。在function open_C

2、allback(hObject, eventdata, handles)后面輸入如下程序：name,path=uigetfile('*.*');file=path,name;% axes(handles.axesl);x=imread(file); %讀取圖像handles.img=x;guidata(hObject,handles); imshow(x); %顯示圖像title('打開');在function save_Callback(hObject, eventdata, handles)后面輸入如下程序name,path=uigetfile('*

3、.*','');file=path,name;x=imread(file);handles.img=x;guidata(hObject,handles);imshow(x);imwrite(x,'new.jpg'); %保存圖像title('保存');2） 設(shè)計(jì)圖形用戶界面，讓用戶能夠?qū)D像進(jìn)行任意的亮度和對(duì)比度變化調(diào)整，顯示和對(duì)比變換前后的圖像。在function liangdu_Callback(hObject, eventdata, handles)后面輸入如下程序x=(handles.img);y=imadjust(x,0.15

4、0.9,0 1); %增亮圖像imshow(y);title('亮度')在function pushbutton4_Callback(hObject, eventdata, handles)后面輸入如下程序x=rgb2gray(handles.img); %RGB圖像轉(zhuǎn)換為灰度圖像imshow(x);title('huidu')3） 設(shè)計(jì)圖形用戶界面，讓用戶能夠用鼠標(biāo)選取圖像感興趣區(qū)域，顯示和保存該選擇區(qū)域。在function jietu_Callback(hObject, eventdata, handles)后面輸入如下程序x=imcrop(handles.

5、img); %截圖imshow(x);imwrite(x,'cut.jpg'); %保存圖像title('jietu');4） 編寫程序通過最近鄰插值和雙線性插值等算法將用戶所選取的圖像區(qū)域進(jìn)行放大和縮小整數(shù)倍的操作，并保存，比較幾種插值的效果。在function nearfangda_Callback(hObject, eventdata, handles)后面輸入如下程序x=imresize(handles.img,2,'nearest'); %最近鄰插值法放大imshow(x);imwrite(x,'nearfangda.jpg&#

6、39;);title('最近鄰插值法放大');在function nearsuoxiao_Callback(hObject, eventdata, handles)后面輸入如下程序x=imresize(handles.img,0.5,'nearest'); %最近鄰插值法縮小imshow(x);imwrite(x,'nearsuoxiao.jpg');title('最近鄰插值法縮小');在function doublefangda_Callback(hObject, eventdata, handles)后面輸入如下程序x=imr

7、esize(handles.img, 5,'bilinear'); %雙線性插值法放大圖像imshow(x);imwrite(x, 'doublefangda.jpg');title('雙線性插值法放大');在function doublesuoxiao_Callback(hObject, eventdata, handles)后面輸入如下程序x=imresize(handles.img, 0.5,'bilinear'); %雙線性插值法放大圖像imshow(x);imwrite(x, doublesuoxiao.jpg'

8、);title('雙線性插值法縮小');5） 圖像直方圖統(tǒng)計(jì)和直方圖均衡，要求顯示直方圖統(tǒng)計(jì)，比較直方圖均衡后的效果。function zhifangtu_Callback(hObject, eventdata, handles)set(handles.axes1,'HandleVisibility','ON');x=imhist(handles.img(:,:); %直方圖統(tǒng)計(jì)x1=x(1:10:256);horz=1:10:256;bar(horz,x1);set(handles.axes1,'xtick',0:50:255)

9、;set(handles.axes1,'HandleVisibility','OFF');在function junheng_Callback(hObject, eventdata, handles)后面輸入如下程序set(handles.axes1,'HandleVisibility','ON');h=histeq(handles.img(:,:); %直方圖均衡imshow(h);set(handles.axes1,'HandleVisibility','OFF');6）能對(duì)圖像加入各種噪聲，并

10、通過幾種濾波算法實(shí)現(xiàn)去噪并顯示結(jié)果，比較去噪效果。在function gaussian_Callback(hObject, eventdata, handles) 后面輸入如下程序x=(handles.img);y=imnoise(x,'gaussian',0,0.05); %加高斯噪聲imshow(y);imwrite(y,'gaussian.jpg');title('jiagaosizaosheng');在function jiaoyan_Callback(hObject, eventdata, handles) 后面輸入如下程序x=(han

11、dles.img);y=imnoise(x,'salt & pepper',0.08); %加椒鹽噪聲imshow(y);imwrite(y,'salt.jpg');title('jiajiaoyanzaosheng');在function medfilt_Callback(hObject, eventdata, handles) 后面輸入如下程序x=(handles.img);y=imnoise(x,'salt & pepper',0.04); %加椒鹽噪聲z=medfilt2(y(:,:),5 5,'symmetric'); %中值濾波imshow(z);imwrite(z,'medfilt.jpg');title('zhongzhilvbo');在function wiener_Callback(hObject, eventdata, handles) 后面輸入如下程序x=(handles.img);y=imnoise(x,'gaussian',0,0.05);