Upvote:1 

float *fpxlsA = (float *)malloc(imgA.height * imgA.width * sizeof(float));
float *fpxlsB = (float *)malloc(imgB.height * imgB.width * sizeof(float));
float *output = (float *)malloc(imgB.height * imgB.width * sizeof(float));

for (size_t i = 0; i < imgA.height * imgA.width; ++i) {
    fpxlsA[i] = (float)(pxlsA[i]);
    fpxlsB[i] = (float)(pxlsB[i]);
}    

vDSP_vsbsbm(fpxlsA, 1, fpxlsB, 1, fpxlsA, 1, fpxlsB, 1, output, 1, imgA.height * imgB.width);
float sum;
vDSP_sve(output, 1, &sum, imgA.height * imgB.width);

free(output);
free(fpxlsA);
free(fpxlsB);

More Answer related to the Same Query

Upvote:0 

int d;

size_t i = imgA.height * imgA.width;

while ( i -- )
{
  d = ( int )(*pxlsA++) - ( int )(*pxlsB++);
  mse += d * d;
}

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