Speed up Matrix Addition in C#

Question

I\'d like to optimize this piece of code :

public void PopulatePixelValueMatrices(GenericImage image,int Width, int Height)
{            
        for (int x = 0;         


        

Answer 1

I recommend that you profile this code and find out what's taking the most time.

You may find that it's the subscripting operation, in which case you might want to change your data structures from:

long sumOfPixelValues[n,m];
long sumOfPixelValuesSquared[n,m];

to

struct Sums
{
    long sumOfPixelValues;
    long sumOfPixelValuesSquared;
}

Sums sums[n,m];

This would depend on what you find once you profile the code.