Converting the code with repeated instructions to a simpler code
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Nour George
am 25 Jun. 2020
Kommentiert: Nour George
am 25 Jun. 2020
This code is not simple as there are many repeated instructions and the difference is the value of the quality, so I want the same code, but it is simpler without repetition. How can i do this by "for loop"
and How can i use plot Here ?
figure
q=[0 5 15 25 50 75 90 100]
Original=imread('lena (1).jpg');
information = imfinfo('lena (1).jpg');
OriginalFileSize=(information.Width*information.Height*information.BitDepth)/8
%%for Quality 1
imwrite(Original,'CompressedQuality1.jpg','jpg','Quality',0) ;
information = imfinfo('CompressedQuality1.jpg');
CompressedFileSize1=information.FileSize;
CompressedRatio1=OriginalFileSize/CompressedFileSize1
%%for Quality 5
imwrite(Original,'CompressedQuality2.jpg','jpg','Quality',5);
information = imfinfo('CompressedQuality2.jpg');
CompressedFileSize2=information.FileSize;
CompressedRatio2=OriginalFileSize/CompressedFileSize2
%%for Quality 15
imwrite(Original,'CompressedQuality3.jpg','jpg','Quality',15);
information = imfinfo('CompressedQuality3.jpg');
CompressedFileSize3=information.FileSize;
CompressedRatio3=OriginalFileSize/CompressedFileSize3
%%for Qualoty 25
imwrite(Original,'CompressedQuality4.jpg','jpg','Quality',25);
information = imfinfo('CompressedQuality4.jpg');
CompressedFileSize4=information.FileSize;
CompressedRatio4=OriginalFileSize/CompressedFileSize4
%%for Quality 50
imwrite(Original,'CompressedQuality5.jpg','jpg','Quality',50);
information = imfinfo('CompressedQuality5.jpg');
CompressedFileSize5=information.FileSize;
CompressedRatio5=OriginalFileSize/CompressedFileSize5
%%for Quality 75
imwrite(Original,'CompressedQuality6.jpg','jpg','Quality',75);
information = imfinfo('CompressedQuality6.jpg');
CompressedFileSize6=information.FileSize;
CompressedRatio6=OriginalFileSize/CompressedFileSize6
%%for Quality 90
imwrite(Original,'CompressedQuality7.jpg','jpg','Quality',90);
information = imfinfo('CompressedQuality7.jpg');
CompressedFileSize7=information.FileSize;
CompressedRatio7=OriginalFileSize/CompressedFileSize7
%%for Quality 100
imwrite(Original,'CompressedQuality8.jpg','jpg','Quality',100);
information = imfinfo('CompressedQuality8.jpg');
CompressedFileSize8=information.FileSize;
CompressedRatio8=OriginalFileSize/CompressedFileSize8
0 Kommentare
Akzeptierte Antwort
Walter Roberson
am 25 Jun. 2020
Qualities = [0 5 15 25 50 75 90 100];
for qidx = 1 : length(Qualities)
filename = sprintf('CompressedQuality%d.jpg', qidx);
imwrite(Original, filename, 'jpg', 'Quality', Qualities(qidx));
information = imfinfo(filename);
CompressedFileSizes(qidx) = information.FileSize;
CompressedRatios(qidx) = OriginalFIleSize / CompressedFileSizes(qidx);
end
3 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Annotations finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!