nrf_dsp_scale_zscore_i8()

void nrf_dsp_scale_zscore_i8	(	const int8_t *	p_input,
		uint16_t	num,
		const int8_t	mean,
		const int8_t	stddev,
		int8_t *	p_output )

#include <include/nrf_edgeai/dsp/support/nrf_dsp_scale_zscore.h>

Z-score scaling of the INT8 vector ( y = (x - mean) / stddev )

Note

In order not to lose accuracy when dividing, the subtraction result (x - mean) is multiplied by NRF_DSP_INT8_QFACTOR

Parameters

[in]	p_input	Pointer to the input vector
[in]	num	Number of samples in input vector
[in]	mean	Mean scaling factor
[in]	stddev	Standard deviation scaling factor
[out]	p_output	Pointer to the output scaled vector