QuantizationInfo Class Reference

Quantization information. More...

#include <QuantizationInfo.h>

Public Member Functions
	QuantizationInfo () noexcept
	Default constructor. More...
	QuantizationInfo (float scale)
	Construct quantization info. More...
	QuantizationInfo (float scale, int offset, bool is_dynamic=false)
	Construct quantization info. More...
	QuantizationInfo (std::vector< float > scale)
	Construct quantization info. More...
	QuantizationInfo (std::vector< float > scale, std::vector< int32_t > offset, bool is_dynamic=false)
	Construct quantization info. More...
const std::vector< float > &	scale () const
	Scale vector accessor. More...
const std::vector< int32_t > &	offset () const
	Offset vector accessor. More...
bool	is_dynamic () const
	is_dynamic accessor More...
bool	empty () const
	Indicates whether this QuantizationInfo has valid settings or not. More...
UniformQuantizationInfo	uniform () const
	Return per layer quantization info. More...

Detailed Description

Quantization information.

Definition at line 67 of file QuantizationInfo.h.

Constructor & Destructor Documentation

QuantizationInfo() [1/5]

QuantizationInfo ( )

inlinenoexcept

Default constructor.

Definition at line 71 of file QuantizationInfo.h.

                                : _scale(), _offset()
    {
    }

QuantizationInfo() [2/5]

QuantizationInfo ( float  scale )

inline

Construct quantization info.

Note

Used for symmetric quantization

Parameters

[in]

scale

Scale.

Definition at line 80 of file QuantizationInfo.h.

                                  : _scale(1, scale), _offset()
    {
    }

QuantizationInfo() [3/5]

QuantizationInfo ( float  scale, int  offset, bool  is_dynamic = false  )

inline

Construct quantization info.

Note

Used for asymmetric quantization

Parameters

[in]	scale	Scale.
[in]	offset	Offset.
[in]	is_dynamic	Whether this QuantizationInfo is dynamic, i.e. the scale and offset may change.

Definition at line 91 of file QuantizationInfo.h.

        : _scale(1, scale), _offset(1, offset), _is_dynamic(is_dynamic)
    {
    }

QuantizationInfo() [4/5]

QuantizationInfo ( std::vector< float >  scale )

inline

Construct quantization info.

Note

Used for symmetric per channel quantization

Parameters

[in]

scale

Scale.

Definition at line 101 of file QuantizationInfo.h.

                                             : _scale(scale), _offset()
    {
    }

QuantizationInfo() [5/5]

QuantizationInfo ( std::vector< float >  scale, std::vector< int32_t >  offset, bool  is_dynamic = false  )

inline

Construct quantization info.

Note

Used for asymmetric per channel quantization

Parameters

[in]	scale	Scale.
[in]	offset	Offset.
[in]	is_dynamic	Whether this QuantizationInfo is dynamic, i.e. the scale and offset may change.

Definition at line 112 of file QuantizationInfo.h.

        : _scale(scale), _offset(offset), _is_dynamic(is_dynamic)
    {
    }

Member Function Documentation

empty()

bool empty ( ) const

inline

Indicates whether this QuantizationInfo has valid settings or not.

Returns

True if the this has invalid settings.

Definition at line 144 of file QuantizationInfo.h.

    {
        return _scale.empty() && _offset.empty();
    }

Referenced by arm_compute::test::validation::reference::activation_layer< int16_t >(), arm_compute::test::validation::reference::activation_layer< int8_t >(), arm_compute::test::validation::reference::activation_layer< uint8_t >(), GraphBuilder::add_convolution_node(), GraphBuilder::add_depthwise_convolution_node(), GraphBuilder::add_detection_post_process_node(), FullyConnectedLayerNode::compute_output_descriptor(), FullyConnectedLayerNode::compute_weights_descriptor(), ActivationLayerNode::configure_output(), DeconvolutionLayerNode::configure_output(), ArgMinMaxLayerNode::configure_output(), EltwiseLayerNode::configure_output(), ConcatenateLayerNode::configure_output(), DepthwiseConvolutionLayerNode::configure_output(), ConvolutionLayerNode::configure_output(), and UnaryEltwiseLayerNode::configure_output().

is_dynamic()

bool is_dynamic ( ) const

inline

is_dynamic accessor

Returns

If true, the scale and offset may change, so operators will need to read on every run

Definition at line 136 of file QuantizationInfo.h.

    {
        return _is_dynamic;
    }

Referenced by CpuGemmLowpMatrixMultiplyCore::configure(), invert_qinfo_offset(), CpuGemmLowpMatrixMultiplyCore::run(), and CpuGemmLowpMatrixMultiplyCore::validate().

offset()

const std::vector<int32_t>& offset ( ) const

inline

Offset vector accessor.

Returns

A reference to quantization offset metadata

Definition at line 128 of file QuantizationInfo.h.

    {
        return _offset;
    }

Referenced by ClDequantizeKernel::configure(), ClQuantizeKernel::configure(), ClScaleKernel::configure(), CLComputeAllAnchorsKernel::configure(), CLNormalizePlanarYUVLayerKernel::configure(), CLRangeKernel::configure(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::dequantize(), arm_compute::dequantize_qasymm16(), arm_compute::dequantize_s32(), dynamic_qinfo(), invert_qinfo_offset(), main(), arm_compute::operator<<(), arm_compute::operator==(), print_quantization_info(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::quantize(), arm_compute::quantize_qasymm16(), and arm_compute::test::validation::TEST_CASE().

scale()

const std::vector<float>& scale ( ) const

inline

Scale vector accessor.

Returns

A reference to quantization scale metadata

Definition at line 120 of file QuantizationInfo.h.

    {
        return _scale;
    }

Referenced by arm_compute::quantization::calculate_quantized_multipliers(), arm_compute::cpu::compute_all_anchors_qasymm16(), arm_compute::quantization::compute_quantized_multipliers_and_shifts(), ClDequantizeKernel::configure(), ClQuantizeKernel::configure(), ClScaleKernel::configure(), CLComputeAllAnchorsKernel::configure(), CLNormalizePlanarYUVLayerKernel::configure(), CLRangeKernel::configure(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::dequantize(), arm_compute::dequantize_qasymm16(), arm_compute::dequantize_qsymm16(), arm_compute::dequantize_qsymm8(), arm_compute::dequantize_s32(), dynamic_qinfo(), invert_qinfo_offset(), main(), arm_compute::operator<<(), arm_compute::operator==(), print_quantization_info(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::quantize(), arm_compute::quantize_qasymm16(), arm_compute::quantize_qsymm16(), arm_compute::quantize_qsymm8_per_channel(), arm_compute::cpu::run_depthwise_quanitized8bit(), arm_compute::test::validation::TEST_CASE(), and CpuDepthwiseConv2dAssemblyWrapperKernel::validate().

uniform()

UniformQuantizationInfo uniform ( ) const

inline

Return per layer quantization info.

Returns

Uniform quantization information in case of empty information zero is returned in the respective fields

Definition at line 152 of file QuantizationInfo.h.

    {
        UniformQuantizationInfo uqinfo;
        uqinfo.scale  = _scale.empty() ? 0 : _scale[0];
        uqinfo.offset = _offset.empty() ? 0 : _offset[0];
 
        return uqinfo;
    }

References UniformQuantizationInfo::offset, and UniformQuantizationInfo::scale.

Referenced by arm_compute::cpu::add_qasymm8_signed_sve2(), arm_compute::cpu::add_qasymm8_sve2(), arm_compute::cpu::add_qsymm16_neon(), arm_compute::cpu::add_qsymm16_sve2(), arm_compute::cpu::add_sub_q8_neon_fixedpoint_possible(), arm_compute::cpu::add_sub_qasymm8_neon(), arm_compute::cpu::add_sub_qasymm8_signed_neon(), arm_compute::cpu::avg_poolingMxNxD_q8_neon_ndhwc(), arm_compute::cpu::bounding_box_transform_qsymm16(), arm_compute::cpu::compute_all_anchors_qasymm16(), arm_compute::quantization::compute_quantized_multipliers_and_shifts(), ClTransposedConvolutionKernel::configure(), ClMatMulLowpNativeMMULKernel::configure(), ClWidthConcatenate2TensorsKernel::configure(), ClWidthConcatenate4TensorsKernel::configure(), ClMatMulLowpNativeKernel::configure(), NEQLSTMLayerNormalizationKernel::configure(), CLComputeAllAnchorsKernel::configure(), CLQLSTMLayerNormalizationKernel::configure(), CLComparisonKernel::configure(), CLRangeKernel::configure(), ClDirectConv2dKernel::configure(), ClDirectConv3dKernel::configure(), ClMulKernel::configure(), CLDepthwiseConvolutionLayerNativeKernel::configure(), CLBoundingBoxTransformKernel::configure(), CLROIPoolingLayerKernel::configure(), CLROIAlignLayerKernel::configure(), ClGemmLowpMatrixMultiplyCore::configure(), NELSTMLayerQuantized::configure(), CpuGemmLowpMatrixMultiplyCore::configure(), CLGEMMDeconvolutionLayer::configure(), NEQLSTMLayer::configure(), CLLSTMLayerQuantized::configure(), CLQLSTMLayer::configure(), arm_compute::test::validation::convert_to_asymmetric(), arm_compute::test::validation::convert_to_symmetric(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::dequantize(), arm_compute::dequantize_qasymm16(), arm_compute::dequantize_qsymm16(), arm_compute::dequantize_s32(), arm_compute::cpu::directconv3d_quantized_neon_ndhwc(), arm_compute::cpu::elementwise_arithmetic_quantized_op(), arm_compute::cpu::elementwise_comp_quantized_signed(), arm_compute::cpu::elementwise_comparison_quantized_op(), arm_compute::cpu::elementwise_op< int8_t >(), arm_compute::cpu::elementwise_op< uint8_t >(), arm_compute::cpu::elementwise_op_quantized(), arm_compute::cpu::elementwise_op_quantized_signed(), arm_compute::quantization::get_quantized_asymmetric_output_min_max(), arm_compute::test::validation::get_quantized_bounds(), arm_compute::test::validation::get_quantized_qasymm8_signed_bounds(), main(), arm_compute::cpu::max_poolingMxNxD_q8_neon_ndhwc(), arm_compute::cpu::neon_qasymm8_meanstddevnorm(), arm_compute::cpu::neon_softmax_non_x_quantized(), arm_compute::cpu::neon_softmax_x_quantized(), arm_compute::operator<<(), arm_compute::cpu::poolingMxN_q8_neon_nhwc(), arm_compute::test::validation::reference::quantization_layer(), Qasymm8QuantizationHelper< QUANTIZED_TYPE >::quantize(), arm_compute::quantize_qasymm16(), arm_compute::quantize_qsymm16(), arm_compute::quantize_qsymm8(), arm_compute::cpu::roi_align_1x1_qasymm8(), CPPUpsampleKernel::run(), CpuGemmLowpMatrixMultiplyCore::run(), arm_compute::cpu::sub_qsymm16_neon(), arm_compute::test::validation::suggest_mac_dst_q_info_and_bias(), arm_compute::cpu::sve2_softmax_logits_1d_quantized(), ClGemmLowpMatrixMultiplyCore::validate(), NEGenerateProposalsLayer::validate(), CpuGemmLowpMatrixMultiplyCore::validate(), NELSTMLayerQuantized::validate(), CLGenerateProposalsLayer::validate(), CLLSTMLayerQuantized::validate(), NEQLSTMLayer::validate(), arm_compute::validate(), and CLQLSTMLayer::validate().

---

The documentation for this class was generated from the following file:

• arm_compute/core/QuantizationInfo.h