Interpolation.h

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#ifndef __Interpolation_H__
#define __Interpolation_H__

namespace EdgeDetection
{
        class Interpolation
        {
                public: static double InterpolateForward(double start, double end, double fraction)
                {
                        if (fraction < 0) return start;
                        if (fraction > 1) return end;

                        return start + fraction * (end - start);
                }
                public: static double InterpolateReverse(double start, double end, double value)
                {
                        if (value < start) return 0;
                        if (value > end) return 1;

                        return (value - start) / (end - start);
                }
        };
};

#endif