數(shù)字圖像處理實(shí)驗(yàn)一

數(shù)字圖像處理—實(shí)驗(yàn)一一．實(shí)驗(yàn)內(nèi)容：圖像灰度變換二．實(shí)驗(yàn)?zāi)康模簩W(xué)會(huì)用Matlab軟件對(duì)圖像灰度進(jìn)行變換；感受各種不同的灰度變換方法對(duì)最終圖像效果的影響。三．實(shí)驗(yàn)步驟：獲取實(shí)驗(yàn)用圖像：Fig3.10(b).jpg.使用imread函數(shù)將圖像讀入Matlab。產(chǎn)生灰度變換函數(shù)T1，使得：0.3r r<0.35s= 0.105+2.6333(r–0.35) 0.35≤r≤0.65 1+0.3(r–1) r>0.65 用T1對(duì)原圖像Fig3.10(b).jpg進(jìn)行處理，打印處理后的新圖像。產(chǎn)生灰度變換函數(shù)T2，使得：15.9744r515.9744r5 r≤0.5(r–0.5)0.2+0.12r>0.5s= 用T2對(duì)原圖像Fig3.10(b).jpg進(jìn)行處理，打印另一處理后的新圖像。分別用s=r0.6;s=r0.4;s=r0.3對(duì)Fig3.08(a).jpg圖像進(jìn)行處理。為簡(jiǎn)便起見，請(qǐng)使用Matlab中的imadjust函數(shù)。對(duì)Fig3.04(a).jpg圖像實(shí)施反變換〔NegativeTransformation〕。s=1－r;對(duì)Fig3.10(b).jpg圖像實(shí)施灰度切片〔Gray-levelslicing〕。具體要求如下：當(dāng)0.2≤r≤0.4時(shí)，將r置為0.6,當(dāng)r位于其他區(qū)間時(shí),保持其灰度與原圖像一樣。四．實(shí)驗(yàn)報(bào)告要求： 用imshow,plot等函數(shù)生成各類圖像，提交原圖像和各種變換函數(shù)的曲線，以及按各種變換函數(shù)處理后的圖像。實(shí)驗(yàn)報(bào)告上的其他內(nèi)容，按常規(guī)實(shí)驗(yàn)報(bào)告要求辦。 %1figure;subplot(4,3,1);i=imread('Fig3.10(b).jpg');i=im2double(i);imshow(i);title('1');%2subplot(4,3,2);r=[0:0.001:1];s=[r<0.35].*r*0.3+[r<=0.65].*[r>=0.35].*(0.105+2.6333*(r-0.35))+[r>0.65].*(1+0.3*(r-1));plot(r,s);title('2p,');subplot(4,3,3);T1=[i<0.35].*i*0.3+[i<=0.65].*[i>=0.35].*(0.105+2.6333*(i-0.35))+[i>0.65].*(1+0.3*(i-1));imshow(T1);title('2i,');imwrite(T1,'Fig3.10(b)_T1.jpg','jpg');%3subplot(4,3,4);r=[0:0.001:1];s=[r<=0.5].*(r.^5)*15.9744+[r>0.5].*((r-0.5).^0.2+0.12);plot(r,s);title('3p,');subplot(4,3,5);T2=[i<=0.5].*(i.^5)*15.9744+[i>0.5].*((i-0.5).^0.2+0.12);imshow(T2);title('3i,');imwrite(T2,'Fig3.10(b)_T2.jpg','jpg');%4subplot(4,3,6);ss1=r.^0.6;ss2=r.^0.4;ss3=r.^0.2;plot(r,ss1,r,ss2,r,ss3);title('4p,');subplot(4,3,7);s1=imadjust(i,[],[],0.6);imshow(s1);title('41i,');subplot(4,3,8);s2=imadjust(i,[],[],0.4);imshow(s2);title('42i,');subplot(4,3,9);s3=imadjust(i,[],[],0.3);imshow(s3);title('43i,');%5subplot(4,3,10);rr=imread('Fig3.04(a).jpg');rr=im2double(rr);imshow(rr);title('5i,');ss=1-rr;imwrite(ss,'Fig3.10(a)_ss.jpg','jpg');%6subplot(4,3,11);r=[0:0.001:1];s=[r<=0.4].*[r>=0.2]*0.6;plot(r,s);title('6p,');subplot(4,3,12);s6=[i<=0.4].*[