diff options
Diffstat (limited to 'arm_compute/core/QuantizationInfo.h')
| -rw-r--r-- | arm_compute/core/QuantizationInfo.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arm_compute/core/QuantizationInfo.h b/arm_compute/core/QuantizationInfo.h index 5e6e5b349c..949ee66b7c 100644 --- a/arm_compute/core/QuantizationInfo.h +++ b/arm_compute/core/QuantizationInfo.h @@ -250,6 +250,36 @@ inline int8_t quantize_qsymm8(float value, const QuantizationInfo &qinfo) return quantized; } +/** Quantize a value given a 8-bit symmetric per channel quantization scheme + * + * @param[in] value Value to quantize + * @param[in] qinfo Quantization information to use for quantizing + * @param[in] channel_id channel index into the scale vector of quantization info + * + * @return Quantized value + */ +inline int8_t quantize_qsymm8_per_channel(float value, const QuantizationInfo &qinfo, size_t channel_id = 0) +{ + int quantized = arm_compute::round(value / qinfo.scale()[channel_id], RoundingPolicy::TO_NEAREST_UP); + quantized = std::max(-128, std::min(quantized, 127)); + return quantized; +} + +/** Quantize a value given a 8-bit asymmetric per channel quantization scheme + * + * @param[in] value Value to quantize + * @param[in] qinfo Quantization information to use for quantizing + * @param[in] channel_id channel index into the scale vector of quantization info + * + * @return Quantized value + */ +inline int8_t quantize_qasymm8_per_channel(float value, const QuantizationInfo &qinfo, size_t channel_id = 0) +{ + int quantized = arm_compute::round(value / qinfo.scale()[channel_id], RoundingPolicy::TO_NEAREST_UP); + quantized = std::max(0, std::min(quantized, 255)); + return quantized; +} + /** Dequantize a value given a 8-bit asymmetric quantization scheme * * @param[in] value Value to dequantize |