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ResNet

Model Source

The model used in this example comes from the following open source projects:
https://github.com/onnx/models/raw/main/vision/classification/resnet/model/resnet50-v2-7.onnx

Download link:

resnet50-v2-7.onnx

Download with shell command:

cd model
./download_model.sh

Script Usage

Usage:

cd python
python resnet.py <onnx_model> <TARGET_PLATFORM> [dtype(optional)] [output_rknn_path(optional)]

# such as: 
python resnet.py ../model/resnet50-v2-7.onnx rk3588
# output model will be saved as ../model/resnet50-v2-7.rknn

Description:

  • <onnx_model> should be the ONNX model path.
  • <TARGET_PLATFORM> could be specified as RK3562, RK3566, RK3568, RK3588, RK1808, RV1109, RV1126 according to board SOC version.
  • <dtype> is optional, could be specified as i8, u8 or fp, i8/u8 means to do quantization, fp means no to do quantization, default is i8.
  • <output_rknn_path> is optional, used to specify the saving path of the RKNN model, default save path is ../model/resnet50-v2-7.rknn

Android Demo

Note: RK1808, RV1109, RV1126 does not support Android.

Compiling && Building

# go back to the rknn_model_zoo root directory
cd ../../
export ANDROID_NDK_PATH=<android_ndk_path>

./build-android.sh -t <TARGET_PLATFORM> -a <ARCH> -d resnet

# such as 
./build-android.sh -t rk3588 -a arm64-v8a -d resnet

  • <android_ndk_path>: Specified as Android ndk path.

  • <TARGET_PLATFORM>: Specify NPU platform name. Such as 'rk3588'.

  • <ARCH>: Specify device system architecture.

    # Query architecture. For Android, ['arm64-v8a' or 'armeabi-v7a'] shown.
adb shell cat /proc/version

Push demo files to device

With device connected via USB port, push demo files to devices:

adb root
adb remount
adb push install/<TARGET_PLATFORM>_android_arm64-v8a/rknn_resnet_demo /data/

Running

adb shell
cd /data/rknn_resnet_demo

export LD_LIBRARY_PATH=./lib
./rknn_resnet_demo model/resnet50-v2-7.rknn model/dog_224x224.jpg

Linux Demo

Compiling && Building

# go back to the rknn_model_zoo root directory
cd ../../

# if GCC_COMPILER not found while building, please set GCC_COMPILER path
(optional)export GCC_COMPILER=<GCC_COMPILER_PATH>

./build-linux.sh -t <TARGET_PLATFORM> -a <ARCH> -d resnet

# such as 
./build-linux.sh -t rk3588 -a aarch64 -d resnet

  • <GCC_COMPILER_PATH>: Specified as GCC_COMPILER path.

  • <TARGET_PLATFORM>: Specify NPU platform name. Such as 'rk3588'.

  • <ARCH>: Specify device system architecture.

    # Query architecture. For Linux, ['aarch64' or 'armhf'] shown.
adb shell cat /proc/version

Push demo files to device

adb push install/<TARGET_PLATFORM>_linux_<ARCH>/rknn_resnet_demo/ /data/

Running

adb shell
cd /data/rknn_resnet_demo

export LD_LIBRARY_PATH=./lib
./rknn_resnet_demo model/resnet50-v2-7.rknn model/dog_224x224.jpg

Expected Results

This example will print the TOP5 labels and corresponding scores of the test image classification results, as follows:

[155] score=0.794123 class=n02086240 Shih-Tzu
[154] score=0.183054 class=n02086079 Pekinese, Pekingese, Peke
[262] score=0.011264 class=n02112706 Brabancon griffon
[152] score=0.002242 class=n02085782 Japanese spaniel
[283] score=0.001936 class=n02123394 Persian cat
  • Note: Different platforms, different versions of tools and drivers may have slightly different results.