decryption of text using LSB detecting showing error index out of bounds

the error it is showing is :

??? Attempted to access im(841,1); index out of bounds because size(im)=[768,1024].

Error in ==> Decrypt_text at 14 while(im(x,y)~=0)

[Image Analyst]

It doesn't look like you've read this yet: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer Give that a shot, then come back here and fix your post.

Also read this.

[Image Analyst]

Is this the same as an already accepted question: http://www.mathworks.com/matlabcentral/answers/215274-error-in-decryption-code-saying-not-enough-input-arguments?

[Anushree Bhatt]

no , it is not , the accepted question was done using another algorithm, the one ive posted is using LSB detecting