fft5_3            538 modules/core/src/dxt.cpp     static const T fft5_3 = (T)-0.951056516295153572116439333379382;
fft5_3            843 modules/core/src/dxt.cpp                     r2 = -fft5_3*(i3 + i4); i2 = fft5_3*(r3 + r4);
fft5_3            110 modules/core/src/opencl/fft.cl     a4 = fft5_3 * (CT)(-a1.y - a3.y, a1.x + a3.x);