A certain convolution step involves an elementwise multipication between two 3x3 matrices and taking the resulting sum of the elements.
Given a 3x3 kernel matrix K, find its convolution with a 3x3 subsection of a given matrix A. The subsection will be indicated by r and c, the row-column location of the top left corner element.
For example, let K = [ 
], A = [ 
] and r = 2, c = 3. Then the relevant 3x3 subsection of A starts at row 2 and column 3, i.e. with the element 7. Thus, the 3x3 subsection is S = [ 
]. The element-wise product of S with the kernel K is [ 
], and the convolution y is the sum of these elements, making y = 45.
], A = [ ] and r = 2, c = 3. Then the relevant 3x3 subsection of A starts at row 2 and column 3, i.e. with the element 7. Thus, the 3x3 subsection is S = [ ]. The element-wise product of S with the kernel K is [ ], and the convolution y is the sum of these elements, making y = 45.Solution Stats
Problem Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers30
Suggested Problems
-
Determine whether a vector is monotonically increasing
22855 Solvers
-
7466 Solvers
-
Find common elements in matrix rows
2713 Solvers
-
Are all the three given point in the same line?
599 Solvers
-
Find my daddy long leg (No 's')
2719 Solvers
More from this Author52
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
