資源簡介
實現圖像下采樣,實現的采樣方法有最鄰近采樣法、二次插值法、雙三次卷積法。
代碼片段和文件信息
Img?=?imread(‘lena.jpg‘);
nearSamp2?=?downSample(Img2‘nearest‘);
nearSamp3?=?downSample(Img3‘nearest‘);
lineSamp2?=?downSample(Img2‘linear‘);
lineSamp3?=?downSample(Img3‘linear‘);
cubicSamp2?=?downSample(Img2‘cubic‘);
cubicSamp3?=?downSample(Img3‘cubic‘);
iptsetpref(‘ImshowAxesVisible‘‘on‘);
iptsetpref(‘ImshowInitialMagnification‘100);
subplot(241);imshow(Img);title(‘原始圖像‘);
subplot(242);imshow(nearSamp2);title(‘2*2合并最近鄰采樣‘);
subplot(243);imshow(lineSamp2);title(‘2*2合并雙線性采樣‘);
subplot(244);imshow(cubicSamp2);title(‘2*2合并三次卷積采樣‘);
subplot(246);imshow(nearSamp3);title(‘3*3合并最近鄰采樣‘);
subplot(247);imshow(lineSamp3);title(‘3*3合并雙線性采樣‘);
subplot(248);imshow(cubicSamp3);title(‘3*3合并三次卷積采樣‘);
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????792??2012-06-20?20:45??downSample\demo.m
?????文件???????1728??2012-04-27?10:41??downSample\downSample.m
?????文件??????20401??2012-03-21?11:30??downSample\lena.jpg
?????文件????????259??2012-04-27?10:50??downSample\S.m
?????目錄??????????0??2012-06-20?22:38??downSample
-----------?---------??----------?-----??----
????????????????23180????????????????????5
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