how can I save the results of every run in a vector?

MATLAB

[Kirby Fears]

Is "every run" a function called in a loop? What is returned from each run?

Please give details and examples.

[ramin asadi]

the result is sum of the latest vector of pixels matrix, it doesnt have a loop, the code is quite simple; I=imread('png0015.bmp'); I1=rgb2gray(I); BW=edge(I1,'sobel'); D=bwdist(BW); u=D(480,:); Z=sum(u)/720; Z for every run is a number and i run this for 60 items. i want to save the amount of Z for every run and then avearage this vector.

Answer 1

[Star Strider]

Create a counter and use every incremented value of it to specify a particular matrix row (or column) or cell array element:

1:

for k1 = 1:N
    x(k1) = ... RESULT OF CALCULATION ...;
end

or:

for k1 = 1:N
    x{k1} = ... RESULT OF CALCULATION ...;
end

2:

k1 = 1;
while condition = true
    x{k1} = ... RESULT OF CALCULATION ...;
    k1 = k1 + 1;
end

See the documentation on matrix indexing for details on how to specify rows or columns.

EDIT — To average the vector after you’ve created it, use the mean funciton:

x_mean = mean(x);

[ramin asadi]

i think i need to read all 60 image in this loop, but i dont know how?? monospaced

[ramin asadi]

i think i need to read all 60 image in this loop, but i dont know how??

[Star Strider]

If you want to read 60 images, this is one option:

for k1 = 1:60
    I=imread('png0015.bmp');            % Read Each Image File
    I1=rgb2gray(I);
    BW=edge(I1,'sobel');
    D=bwdist(BW);
    u=D(480,:);
    Z(k1)=sum(u)/720;
end

You obviously want to read different image files. There are ways to do that in a loop, but since I have no idea how you named them, I cannot offer specific code to read each one.