Listing 1: Loop required to calculate the Hough accumulator.
for (double theta=0.0, thetaIndex=0;
theta<PI;
thetaIndex++, theta+=PI/numAngleCells)
{
rho = rhoMax + x*cos(theta) + y*sin(theta);
accum[thetaIndex][(int)rho]++;
}
Computing the Hough Transform
The Hough Transform is an algorithm for finding shapes in images or sets of data points. Andrew implements the Transform for line and circle detection.Related Reading
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