how to use for loop to get updated eveytime while saving inage

global i;
name=get(handles.edit1,'string');
y=strcat(name,k1,'.png')
imwrite(i,y)

problem is i m not able to update "K1"

how can i use for loop to update evertime n start from the last vale whenever started again

ex image='nameK1.png

img1=sp1.png img2=sp2.png ....

should go like this

Answer 1

[KSSV]

n=10;
for i=1:n
 img = strcat('sp',num2str(i),'png')
end

Answer 2

[Image Analyst]

This is a FAQ question, so see the FAQ for code samples: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F