基于Intel OpenVINO的搭建及应用，包含分类，目标检测，及分割，超分辨

PART I: 搭建环境OPENVINO+Tensorflow1.12.0

I: l_openvino_toolkit_p_2019.1.094

第一步常规安装参考链接：https://docs.openvinotoolkit.org/latest/_docs_install_guides_installing_openvino_linux.html

第二步编译Inference Engine Samples:

cd /PATH/TO/deployment_tools/inference_engine/samples

run ./build_samples.sh

编译后的生成文件路径

/root/inference_engine_samples_build/intel64/Release

II. tensorflow编译

       Bazel编译Tensorflow

       参考链接：https://blog.csdn.net/chenyuping333/article/details/82108509

1. Bazel下载连接：https://github.com/bazelbuild/bazel/releases

              (bazel-0.18.0-installer-linux-x86_64.sh)

         2. Tensorflow下载连接：https://github.com/tensorflow/tensorflow/tags       (tensorflow-1.12.0)

Step 1:  cd /PATH/TO/tensorflows

Step2:   ./configure (全选No)

Step3:   编译freeze_graph

             bazel build tensorflow/python/tools:freeze_graph

可能会遇到的问题：

error:Python.h:No such file or directory

solutions:yum install python34-devel

note:一定将默认python改为python3，缺少numpy文件，yum安装时报错，更改对应文件头部的/usr/bin/python地址为/usr/bin/python2，使用pip3 安装numpy

   错误参考链接:       https://www.jianshu.com/p/db943b0f1627    https://blog.csdn.net/xjmxym/article/details/73610648

       https://www.cnblogs.com/toSeek/p/6192481.html

 

Step4: 编译transform_graph

                    bazel build tensorflow/tools/graph_transforms:transform_graph

Step5: 编译summarize_graph

                    bazel build tensorflow/tools/graph_transforms:summarize_graph

PART II:  OPENVINO for Classification

数据集准备：ImageNet val

分别制作六个文件夹每个文件夹内的图片数量依次为1,8,16,32,64,96

形式如下

测试模型：VGG-19,resnet-50,resnet-101,resnet-152,inception-v3,inception-v4

参考链接: https://github.com/vdevaram/deep_learning_utilities_cpu/blob/master/dldt/run_dldt_tf.sh

StepI: 下载预训练的模型(6个)

mkdir pretrainedModels && cd pretrainedModels

wget http://download.tensorflow.org/models/vgg_19_2016_08_28.tar.gz

tar -xvf vgg_19_2016_08_28.tar.gz

wget http://download.tensorflow.org/models/inception_v3_2016_08_28.tar.gz

tar -xvf inception_v3_2016_08_28.tar.gz

wget http://download.tensorflow.org/models/inception_v4_2016_09_09.tar.gz

tar -xvf inception_v4_2016_09_09.tar.gz

wget http://download.tensorflow.org/models/resnet_v1_50_2016_08_28.tar.gz

tar -xvf resnet_v1_50_2016_08_28.tar.gz

wget http://download.tensorflow.org/models/resnet_v1_101_2016_08_28.tar.gz

tar -xvf resnet_v1_101_2016_08_28.tar.gz

wget http://download.tensorflow.org/models/resnet_v1_152_2016_08_28.tar.gz

tar -xvf resnet_v1_152_2016_08_28.tar.gz

解压后的形式如下所示

StepII: 生成对应分类预训练模型的.pb文件

cd /PATH/TO/pretrainedModels

mkdir frozen && mkdir pb

(*不同网络的对应指令有些许不同)

 1． python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=vgg_19

--output_file=/PATH/TO/pb/vgg_19.pb

--labels_offset=1

2. python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=resnet_v1_50

--output_file=/PATH/TO/pb/resnet_v1_50.pb

--labels_offset=1

3. python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=resnet_v1_101

--output_file=/PATH/TO/pb/resnet_v1_101.pb

--labels_offset=1

4.  python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=resnet_v1_152

--output_file=/PATH/TO/pb/resnet_v1_152.pb

--labels_offset=1

5.  python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=inception_v3

--output_file=/PATH/TO/pb/inception_v3.pb

6.  python3.6 /PATH/TO/tensorflowModels/research/slim/export_inference_graph.py

--alsologtostderr

--model_name=inception_v4

--output_file=/PATH/TO/pb/inception_v4.pb

StepIII: 对生成对应分类预训练模型的.pb文件进行freeze操作

(*若下面指令报错可以使用python3.6 运行对应的freeze_graph.py文件进行生成)

cd /PATH/TO/TensorflowModels

1. bazel-bin/tensorflow/python/tools/freeze_graph

--input_graph=/PATH/TO/pb/vgg_19.pb

--input_checkpoint=/PATH/TO/vgg_19.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_vgg_19.pb

--output_node_names=vgg_19/fc8/squeezed

2. bazel-bin/tensorflow/python/tools/freeze_graph  

--input_graph=/PATH/TO/pb/resnet_v1_50.pb

--input_checkpoint=/PATH/TO/resnet_v1_50.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_resnet_v1_50.pb

--output_node_names=resnet_v1_50/predictions/Reshape_1

3. bazel-bin/tensorflow/python/tools/freeze_graph  

--input_graph=/PATH/TO/pb/resnet_v1_101.pb

--input_checkpoint=/PATH/TO/resnet_v1_101.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_resnet_v1_101.pb

--output_node_names=resnet_v1_101/predictions/Reshape_1

4. bazel-bin/tensorflow/python/tools/freeze_graph  

--input_graph=/PATH/TO/pb/resnet_v1_152.pb

--input_checkpoint=/PATH/TO/resnet_v1_152.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_resnet_v1_152.pb

--output_node_names=resnet_v1_152/predictions/Reshape_1

5. bazel-bin/tensorflow/python/tools/freeze_graph  

--input_graph=/PATH/TO/pb/inception_v3.pb

--input_checkpoint=/PATH/TO/inception_v3.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_inception_v3.pb

--output_node_names=InceptionV3/Predictions/Reshape_1

6. bazel-bin/tensorflow/python/tools/freeze_graph  

--input_graph=/PATH/TO/pb/inception_v4.pb

--input_checkpoint=/PATH/TO/inception_v4.ckpt

--input_binary=true

--output_graph=/PATH/TO/frozen/frozen_inception_v4.pb

--output_node_names=InceptionV4/Logits/Predictions

StepIV: 生成IR文件

cd  /PATH/TO /deployment_tools/model_optimizer

1. python3.6 mo.py --framework tf 

--input_model  /PATH/TO/frozen/frozen_vgg_19.pb 

--data_type FP32 

--output_dir  /PATH/TO/frozen/ 

--reverse_input_channels

--batch 64

(batch大小可选1,8,16,32,64,96)

2. python3.6 mo.py --framework tf  

--input_model /PATH/TO/frozen/frozen_inception_v3.pb

--data_type FP32  

--scale 255   

--reverse_input_channels  

--output_dir  /PATH/TO/frozen/

--batch 16

3. python3.6 mo.py --framework tf  

--input_model /PATH/TO/frozen/frozen_inception_v4.pb

--data_type FP32  

--scale 255   

--reverse_input_channels  

--output_dir  /PATH/TO/frozen/

--batch 16

4. python3.6 mo.py --framework tf  

--input_model /PATH/TO/frozen/frozen_resnet_v1_50.pb

--data_type FP32

--output_dir  /PATH/TO/frozen/

--reverse_input_channels

--batch 16

5. python3.6 mo.py --framework tf  

--input_model /PATH/TO/frozen/frozen_resnet_v1_101.pb

--data_type FP32

--output_dir  /PATH/TO/frozen/

--reverse_input_channels

--batch 16

6. python3.6 mo.py --framework tf  

--input_model /PATH/TO/frozen/frozen_resnet_v1_152.pb

--data_type FP32

--output_dir  /PATH/TO/frozen/

--reverse_input_channels

--batch 16

StepV:测试(-ni  -niter 迭代100次)

cd /root/inference_engine_samples_build/intel64/Release

./classification_sample 

-i /PATH/TO/frozen/frozen_inception_v3.xml

-d CPU -ni 100

-l /PATH/TO/deployment_tools/inference_engine/samples/intel64/Release/lib/libcpu_extension.so

-nt 1

-i /PATH/TO/val1

./benchmark_app

-m /PATH/TO /frozen/ frozen_inception_v3.xml  

-d CPU -api async -niter 100

-l /PATH/TO/deployment_tools/inference_engine/samples/intel64/Release/lib/libcpu_extension.so -nireq 32

-i /PATH/TO/val1

(-nireq单CPU核的数量，通过lscpu指令查看)

(上述输入图片的数量与batch的大小相同，对应前面的val数据集，通过更改不同模型对应的.xml文件来测试不同的模型)

PART III:  OPENVINO for Object Detection Test

数据集准备：COCO val2017

分别制作六个文件夹每个文件夹内的图片数量依次为1,8,16,32,64,96

形式如下

Note: Tensorflow Object_Detection API参考：

https://github.com/tensorflow/models/tree/master/research/object_detection

Step I:预训练模型的下载

1.  mkdir  object_detection && cd object_detection && mkdir test_models
2. 下载对应的预训练的目标检测模型

模型链接：

https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/detection_model_zoo.md

解压后的文件格式如下图

Step II: 生成IR文件

参考链接：

https://docs.openvinotoolkit.org/latest/_docs_MO_DG_prepare_model_convert_model_tf_specific_Convert_Object_Detection_API_Models.html

（更改SSD,Faster R-CNN,RFCN,Mask R-CNN对应的 .json及pipeline.config文件

对应的.json文件如下

ssd_v2_support.json

faster_rcnn_support.json

rfcn_support.json

mask_rcnn_support.json）

python3.6 mo_tf.py  

--input_model=/PATH/TO/frozen_inference_graph.pb

--tensorflow_use_custom_operations_config /PATH/TO/deployment_tools/model_optimizer/extensions/front/tf/ssd_v2_support.json

--tensorflow_object_detection_api_pipeline_config /PATH/TO/pipeline.config

--reverse_input_channels --batch 16

(batch只针对SSD的大小可调,Faster RCNN 及RFCN只能测试batch为1的情形)

StepIII:测试

For SSD/Faster RCNN/RFCN series

(benchmark_app只适用于SSD)

./benchmark_app

-m /PATH/TO/frozen_inference_graph.xml

-d CPU -api async -niter 100

-l /PATH/TO/intel64/Debug/lib/libcpu_extension.so

-nireq 32 -i /PATH/TO /val1/

(-nireq代表单CPU的核数，通过lscpu可以查看，val与batch的大小相对应)

(RFCN, SSD 及 Faster R-CNNs, 测试指令都为object_detection_sample_ssd  

***Faster R-CNN/RFCN的只适用于batch=1

 )

./object_detection_sample_ssd 

-m /PATH/TO/frozen_inference_graph.xml -d CPU -ni 100

-l /PATH/TO/intel64/Debug/lib/libcpu_extension.so -i /PATH/TO /val1/

For Mask R-CNN

参考链接：https://docs.openvinotoolkit.org/latest/_inference_engine_samples_mask_rcnn_demo_README.html

./mask_rcnn_demo

-m /PATH/TO/frozen_inference_graph.xml -d CPU -ni 100

-l /root/inference_engine_samples_build/intel64/Debug/lib/libcpu_extension.so

-i /PATH/TO/coco_val/val64/

在Mask R-CNN进行batch 值大于16以上时，会出现错误

“segmentation fault”是因为在测试时会生成在当前路径下生成图片，随着batch的增加，内存爆掉。此部分代码可以注释，并不影响正常时间的测量。

注释部分代码如下图。

main.cpp 路径：/opt/intel/openvino_2019.1.0394/deployment_tools/inference_engine/samples/mask_rcnn_demo

此处开始注释

此处结束注释

文件修改后重新进行编译

run ./build_samples.sh

PART IV: OpenVINO for DeepLabV3+

Reference：https://github.com/FionaZZ92/OpenVINO/tree/master/DeeplabV3%2B_MobileNetV2

Tensorflow运行指令(wwen.sh)：

 echo 1 > /proc/sys/vm/compact_memory

echo 3 > /proc/sys/vm/drop_caches

echo 100 > /sys/devices/system/cpu/intel_pstate/min_perf_pct

echo 0 > /sys/devices/system/cpu/intel_pstate/no_turbo

echo 0 > /proc/sys/kernel/numa_balancing

cpupower frequency-set -g performance

export KMP_BLOCKTIME=0

export KMP_SETTINGS=1

export KMP_AFFINITY=granularity=fine,compact,1,0

export OMP_NUM_THREADS=16

numactl --physcpubind=0-15,32-47 --membind=0 python3.6 demo_multi.py --input_folder ./img --output_folder ./output --logdir ./model > node_2_1.log 2>&1 &

numactl --physcpubind=16-31,48-63 --membind=1 python3.6 demo_multi.py --input_folder ./img --output_folder ./output --logdir ./model > node_2_2.log 2>&1 &

Step1: IR文件的生成

python3.6 mo_tf.py --input_model /home/gsj/deeplab/research/deeplab/model/frozen_inference_graph.pb   --data_type FP32 --output_dir /home/gsj/super-resolution/tf_estimator_barebone/models/ --input 0:xception_65/Pad  --output aspp0/Relu,aspp1_pointwise/Relu,aspp2_pointwise/Relu,aspp3_pointwise/Relu,ResizeBilinear_1 --input_shape [1,1953,2593,3](根据下一步inference过程，预处理图片对应输出尺寸进行调整，如下图)

Step2: Inference(infer_IE_TF.py位于intel64/Release下)

echo 1 > /proc/sys/vm/compact_memory

echo 3 > /proc/sys/vm/drop_caches

echo 100 > /sys/devices/system/cpu/intel_pstate/min_perf_pct

echo 0 > /sys/devices/system/cpu/intel_pstate/no_turbo

echo 0 > /proc/sys/kernel/numa_balancing

cpupower frequency-set -g performance

export KMP_BLOCKTIME=0

export KMP_SETTINGS=1

export KMP_AFFINITY=granularity=fine,compact,1,0

export OMP_NUM_THREADS=16

python3.6 infer_IE_TF.py -m /home/gsj/super-resolution/tf_estimator_barebone/models/frozen_inference_graph.xml -i 1.jpg -l  lib/libcpu_extension .so

#infer_IE_TF.py代码
#author:fourmi_gsj
from __future__ import print_function
import sys
import os 
from argparse import ArgumentParser
import numpy as np
import cv2
import time 

import tensorflow as tf
from tensorflow.python.platform import gfile

from openvino.inference_engine import IENetwork,IEPlugin



def build_argparser():
    parser = ArgumentParser()
    parser.add_argument("-m", "--model" ,help="Path to an .xml file with a trained model.",required=True,type=str)
    parser.add_argument("-i", "--input", help="Path to a folder with images or path to an image files", required=True,
                        type=str)
    parser.add_argument("-l", "--cpu_extension",
                        help="MKLDNN (CPU)-targeted custom layers.Absolute path to a shared library with the kernels "
                             "impl.", type=str, default=None)
    parser.add_argument("-pp", "--plugin_dir", help="Path to a plugin folder", type=str, default=None)
    parser.add_argument("-d", "--device",
                        help="Specify the target device to infer on; CPU, GPU, FPGA or MYRIAD is acceptable. Sample "
                             "will look for a suitable plugin for device specified (CPU by default)", default="CPU",
                        type=str)
    parser.add_argument("-nt", "--number_top", help="Number of top results", default=10, type=int)
    parser.add_argument("-pc", "--performance", help="Enables per-layer performance report", action='store_true')

    return parser


def resoze_for_concat(a0,a1,a2,a3,RB):
    iimg_ir = []
    '''
    print('a0:',a0.shape)
    print('a1:',a1.shape)
    print('a2:',a2.shape)
    print('a3:',a3.shape)
    print('RB:',RB.shape)
    resize_aspp0 =np.float32(np.zeros((1,256,123,163)))
    resize_ResizeBilinear_1=np.float32(np.zeros((1,256,123,163)))
    resize_aspp1 =np.float32(np.zeros((1,256,123,163)))
    resize_aspp2 =np.float32(np.zeros((1,256,123,163)))
    resize_aspp3 =np.float32(np.zeros((1,256,123,163)))
    for i in range(256):
        resize_aspp0[0,i]=cv2.resize(a0[0,i],(163,123), interpolation=cv2.INTER_LINEAR)
        resize_ResizeBilinear_1[0,i]=cv2.resize(RB[0,i],(163,123), interpolation=cv2.INTER_LINEAR)
        resize_aspp1[0,i]=cv2.resize(a1[0,i],(163,123), interpolation=cv2.INTER_LINEAR)
        resize_aspp2[0,i]=cv2.resize(a2[0,i],(163,123), interpolation=cv2.INTER_LINEAR)
        resize_aspp3[0,i]=cv2.resize(a3[0,i],(163,123), interpolation=cv2.INTER_LINEAR)
    ResizeBilinear_1=resize_ResizeBilinear_1.transpose((0,2,3,1))
    aspp0=resize_aspp0.transpose((0,2,3,1))
    aspp1=resize_aspp1.transpose((0,2,3,1))
    aspp2=resize_aspp2.transpose((0,2,3,1))
    aspp3=resize_aspp3.transpose((0,2,3,1))
    '''
    ResizeBilinear_1=RB.transpose((0,2,3,1))
    aspp0=a0.transpose((0,2,3,1))
    aspp1=a1.transpose((0,2,3,1))
    aspp2=a2.transpose((0,2,3,1))
    aspp3=a3.transpose((0,2,3,1))
    '''
    print(aspp0.shape)
    print(aspp1.shape)
    print(aspp2.shape)
    print(aspp3.shape)
    print(ResizeBilinear_1.shape)
    '''
    iimg_ir.append(ResizeBilinear_1)
    iimg_ir.append(aspp0)
    iimg_ir.append(aspp1)
    iimg_ir.append(aspp2)
    iimg_ir.append(aspp3)
    return iimg_ir



class _model_preprocess():
    def __init__(self):
        graph = tf.Graph()
        f_handle = gfile.FastGFile("/home/gsj/deeplab/research/deeplab/model/frozen_inference_graph.pb",'rb')
        graph_def = tf.GraphDef.FromString(f_handle.read())
        with graph.as_default():
            tf.import_graph_def(graph_def,name='')
        self.sess = tf.Session(graph=graph)

    def _pre_process(self,image):
        seg_map = self.sess.run('sub_7:0',feed_dict={'ImageTensor:0':[image]})
        #print('The shape of the seg_map is :',seg_map.shape)
        return seg_map

class _model_postprocess():
    def __init__(self):
        graph = tf.Graph()
        f_handle = gfile.FastGFile("/home/gsj/deeplab/research/deeplab/model/frozen_inference_graph.pb",'rb')
        graph_def = tf.GraphDef.FromString(f_handle.read())
        
        with graph.as_default():            
            new_input0=tf.placeholder(tf.float32,shape=(1,123,163,256),name='new_input0')
            new_input1=tf.placeholder(tf.float32,shape=(1,123,163,256),name='new_input1')
            new_input2=tf.placeholder(tf.float32,shape=(1,123,163,256),name='new_input2')
            new_input3=tf.placeholder(tf.float32,shape=(1,123,163,256),name='new_input3')
            new_input4=tf.placeholder(tf.float32,shape=(1,123,163,256),name='new_input4')

            tf.import_graph_def(graph_def,input_map={'ResizeBilinear_1:0':new_input0,'aspp0/Relu:0':new_input1,'aspp1_pointwise/Relu:0':new_input2,'aspp2_pointwise/Relu:0':new_input3,'aspp3_pointwise/Relu:0':new_input4},name='')
            
        self.sess = tf.Session(graph=graph)
    def _post_process(self,image_ir,image):
        seg_map = self.sess.run('SemanticPredictions:0', feed_dict={'ImageTensor:0': [image], 'new_input0:0': image_ir[0],
                                    'new_input1:0': image_ir[1],'new_input2:0': image_ir[2],'new_input3:0': image_ir[3],
                                    'new_input4:0': image_ir[4]})
        return seg_map


_pre = _model_preprocess()
_post = _model_postprocess()



def main_IE_infer():
    args = build_argparser().parse_args()
    model_xml = args.model
    model_bin = os.path.splitext(model_xml)[0] + ".bin"
    image = cv2.imread(args.input)
    print("The size of the orig image is:",image.shape[0],image.shape[1])
    
    h_input_size=1360 #the height of the output
    w_input_size=1020 #the width of the output
    
    h_ratio = 1.0 * h_input_size / image.shape[0] 
    w_ratio = 1.0 * w_input_size / image.shape[1] 
    shrink_size = (int(w_ratio * image.shape[1]),int(h_ratio*image.shape[0]))
    image = cv2.resize(image,shrink_size, interpolation=cv2.INTER_LINEAR)
    print("The shape of the resized Image is:",image.shape)
        
    # Plugin initialization for specified device and load extensions library if specified
    plugin = IEPlugin(device=args.device, plugin_dirs=args.plugin_dir)
    if args.cpu_extension and 'CPU' in args.device:
        plugin.add_cpu_extension(args.cpu_extension)
    if args.performance:
        plugin.set_config({"PERF_COUNT": "YES"})

    # Read IR
    net = IENetwork.from_ir(model=model_xml, weights=model_bin)
    #print("the output Info of the net is :",net.outputs)

    input_blob = next(iter(net.inputs))
    print('input_blob is :',input_blob)
    exec_net = plugin.load(network=net)

    img_ir = []      
    for itr in range(1):
        now = time.time()
        image_ = _pre._pre_process(image)
        image_ = image_.transpose((0,3,1,2))
        #print("the shape of the Front Net'output:",image_.shape)
        
        res =exec_net.infer(inputs={input_blob:image_})
        #print(res.keys())
        aspp0 = res['aspp0/Relu']
        aspp1 = res['aspp1_pointwise/Relu']
        aspp2 = res['aspp2_pointwise/Relu']
        aspp3 = res['aspp3_pointwise/Relu']
        ResizeBilinear_1=res['ResizeBilinear_1']

        img_ir = resoze_for_concat(aspp0,aspp1,aspp2,aspp3,ResizeBilinear_1)
        result = _post._post_process(img_ir,image)[0]
    print('time cost:',time.time()-now)
        #print(result)
    result[result!=0]=255
        
    cv2.imwrite('./result_deeplabv3.jpg', result)
    del net
    del exec_net
    del plugin
    
if __name__=='__main__':
    sys.exit(main_IE_infer() or 0)

PART V: OpenVINO for Super Resolution

Step 1: tensorflow进行测试

Github: https://github.com/ychfan/tf_estimator_barebone

运行inference程序，查找该模型的输出节点，查找到的节点名称为”clip_by_value”

指令执行路径：/home/gsj/super-resolution/tf_estimator_barebone/

运行相关指令如下：

export KMP_BLOCKTIME=1

export KMP_AFFINITY=granularity=fine,compact,1,0

export OMP_NUM_THREADS=16

numactl -C 0-15,32-47 -m 0 python3.6 -m datasets.div2k --mode wdsr --model-dir /home/gsj/super-resolution/tf_estimator_barebone/models/ --input-dir /home/gsj/super-resolution/tf_estimator_barebone/data/DIV2K_valid_HR/ --output-dir ../output

Step 2:

将文件夹models下的模型相关文件(saved_model.pb, variabels文件夹)进行处理，freeze saved_model.pb文件，生成pruned_saved_model_or_whatever.pb文件

指令执行路径：/home/gsj/super-resolution/tf_inference_demo/tensorflow-1.12.0

相关指令：

bazel-bin/tensorflow/python/tools/freeze_graph --in_graph=/home/gsj/super-resolution/tf_estimator_barebone/models/saved_model.pb --output_graph=/home/gsj/super-resolution/tf_estimator_barebone/models/pruned_saved_model_or_whatever.pb --input_saved_model_dir=/home/gsj/super-resolution/tf_estimator_barebone/models --input_checkpoint=/home/gsj/super-resolution/tf_estimator_barebone/models/variables --output_node_names="clip_by_value" --input_binary=true

Step3:

对生成的pruned_saved_model_or_whatever.pb文件进一步进行压缩变换操作（将模型中的节点操作”Mul”进行常量值替换）生成transform.pb文件，执行时指定输入inputs为”input_tensor”，即模型的输入节点名称。

指令执行路径：/home/gsj/super-resolution/tf_inference_demo/tensorflow-1.12.0

相关指令：

bazel-bin/tensorflow/tools/graph_transforms/transform_graph --in_graph=/home/gsj/super-resolution/tf_estimator_barebone/models/pruned_saved_model_or_whatever.pb --out_graph=/home/gsj/super-resolution/tf_estimator_barebone/models/transform.pb --inputs=input_tensor --outputs=clip_by_value --transforms='fold_constants'

Step4:

生成IR文件(transform.bin,transform.xml,transform.mapping)

文件生成路径：/home/gsj/super-resolution/tf_estimator_barebone/models

指令执行路径: /opt/intel/computer_vision_sdk_2018.5.455/deployment_tools/model_optimizer

相关指令：(PS：input_shape的大小根据待测试的图片大小确定)

python3.6 mo_tf.py --input_model /home/gsj/super-resolution/tf_estimator_barebone/models/transform.pb --input_shape [1,1080,1920,3] --data_type FP32 --output_dir /home/gsj/super-resolution/tf_estimator_barebone/models/  --scale_values [255.0] --input input_tensor

Step5:修改生成的transform.xml文件

修改两处位置：将以下几处黄色区域即输入节点的名称”input_tensor”更改为0

开头处：

结尾处：

Step 6:执行测试

指令执行路径：

/root/inference_engine_samples_build/intel64/Release

相关指令：

./super_resolution_demo -i /home/gsj/super-resolution/tf_estimator_barebone/va1/0896_1920_1080.png -m /home/gsj/super-resolution/tf_estimator_barebone/models/transform.xml

Step7:OPENVINO图片生成位置

/root/inference_engine_samples_build/intel64/Release/sr_1.png

Step8:tensorflow图片生成位置

/home/gsj/super-resolution/output

-----------------------------------------------我是华丽的分割线--------------------------------------------------------

原生tensorflow测试

Tensorflow 下载地址：https://pypi.org/project/tensorflow/1.12.0/#files

参考前面step1

优化tensorflow测试

1. 卸载旧版本tensorflow
2. 在当前路径执行：

         export PATH=/home/build_gcc72/bin:$PATH

         export LD_LIBRARY_PATH=/home/build_gcc72/lib64:$LD_LIBRARY_PATH

1. 查看是否为优化的tensorflow, 执行

         python3.6 -c "import tensorflow; print(tensorflow.pywrap_tensorflow.IsMklEnabled())"

         返回true则代表加载MKL

         2. 同step1进行测试