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| author | Georgios Pinitas <georgios.pinitas@arm.com> | 2019-10-16 19:21:40 +0100 |
|---|---|---|
| committer | Michele Di Giorgio <michele.digiorgio@arm.com> | 2019-11-06 15:53:24 +0000 |
| commit | dbdea0d1c025b18d4d82c278c87454427918f5b4 (patch) | |
| tree | 68bc25452f5d5b41006fb507c41516446cf8e457 /arm_compute/core/QuantizationInfo.h | |
| parent | 75d47330e7ca0325cf5d83711452f6aeb085998f (diff) | |
| download | ComputeLibrary-dbdea0d1c025b18d4d82c278c87454427918f5b4.tar.gz | |
COMPMID-2308: NEConvolutionLayer: support QUANT8_SYMM_PER_CHANNEL filters
Change-Id: Ic1bf5f0d21ccd525f84213a360f7e199d7f50577
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2177
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
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 |