libsvm is the famous SVM library, which provides interfaces to almost all the programming languages. However, it seems friendly only for the environments with file systems. Currently, I want to apply libsvm result, which is named as *.model to STM32, and I don't want to port FATFS to it. So the easy way is maybe converting *.model file to svm_model.h and svm_model.c which can be compiled to STM32.
convert_model_to_c.py reads an model file and replace variables to STM32_files/svm_model.c.in and generate STM32_files/svm_model.c as output.
./convert_model_to_c.py [model_path]
svm_model.h and svm_model.c can then be utilized in STM32 project
STM32_files/main.c tests the two files and also gives the demonstration of invoking functions in svm_model.c
To make sure the svm_model.c is correct, tests could be conducted. Following are the steps:
Firstly, run gen_test_model.py to get test.model file.
./gen_test_model.py
Secondly, execute convert_model_to_.py to generate newest svm_model.c file
./convert_model_to_c.py
Finally, test same data both by standard libsvm and converted svm_model.c
test standard libsvm:
cat data.txt | ./test_model.py
test converted svm_model.c:
cd STM32_files
make
cat ../data.txt | ./svm_test
the output will tell whether the converted program is right or not.