added comments and disclaimer to the readme

2022-03-24 19:57:02 +01:00
parent 2bf94bb57f
commit e31b882445
2 changed files with 8 additions and 2 deletions
@@ -655,11 +655,15 @@ void lina_conv(double *A, double *B, double *C,
    int Ch = Ah - Bh + 1;
    assert(Cw > 0 && Ch > 0);

+    // Iterate over each pixel of the result matrix..
    for(int j = 0; j < Ah - Bh + 1; j += 1)
        for(int i = 0; i < Aw - Bw + 1; i += 1)
            {
-                C[j * Cw + i] = 0;
+                // ..and calculate it's value as
+                // the scalar product between the
+                // mask B and a portion of A.

+                C[j * Cw + i] = 0;
                for(int v = 0; v < Bh; v += 1)
                    for(int u = 0; u < Bw; u += 1)
                        C[j * Cw + i] += A[(i - Bw/2 + u) * Aw + (i - Bh/2 + v)] * B[u * Bw + v];