Measuring Code Execution Time in MATLAB
Methods
tic
X1=rand(2^7);
X2=rand(2^8);
X3=rand(2^9);
X4=rand(2^10);
X5=rand(2^11);
toc
Y1=imrotate(X1,45,'bicubic','crop');
toc
Y2=imrotate(X2,45,'bicubic','crop');
toc
Y3=imrotate(X3,45,'bicubic','crop');
toc
Y4=imrotate(X4,45,'bicubic','crop');
toc
Y5=imrotate(X5,45,'bicubic','crop');
toc
tic: Starts a stopwatch for measuring execution time.toc: Returns the current time on the stopwatch. Note that it’s not measuring the time between toc and toc.
To measure the computation time of calculating Y1~Y6 in the example code above, you should enter the code as follows.
tic
X1=rand(2^7);
X2=rand(2^8);
X3=rand(2^9);
X4=rand(2^10);
X5=rand(2^11);
toc
tic
Y1=imrotate(X1,45,'bicubic','crop');
toc
tic
Y2=imrotate(X2,45,'bicubic','crop');
toc
tic
Y3=imrotate(X3,45,'bicubic','crop');
toc
tic
Y4=imrotate(X4,45,'bicubic','crop');
toc
tic
Y5=imrotate(X5,45,'bicubic','crop');
toc
