// NewTess creates and returns a new tesseract instance.
func NewTess(datapath string, language string) (*Tess, error) {
// create new empty TessBaseAPI
tba := C.TessBaseAPICreate()
// prepare string for C call
cDatapath := C.CString(datapath)
defer C.free(unsafe.Pointer(cDatapath))
// prepare string for C call
cLanguage := C.CString(language)
defer C.free(unsafe.Pointer(cLanguage))
// initialize datapath and language on TessBaseAPI
res := C.TessBaseAPIInit3(tba, cDatapath, cLanguage)
if res != 0 {
return nil, errors.New("could not initiate new Tess instance")
}
// create tesseract instance (Tess)
tess := &Tess{
tba: tba,
}
// set GC finalizer, to be ran in case the user forgets to call Close()
runtime.SetFinalizer(tess, (*Tess).delete)
// all done
return tess, nil
}
func BaseAPIInit3(env string, lang string) (*TesseractAPI, error) {
cEnv := C.CString(env)
defer C.free(unsafe.Pointer(cEnv))
cLang := C.CString(lang)
defer C.free(unsafe.Pointer(cLang))
instance := baseAPINew()
rc := C.TessBaseAPIInit3(instance.api, cEnv, cLang)
if rc != success {
return nil, errors.New("Could not initialize tesseract.")
}
runtime.SetFinalizer(instance, (*TesseractAPI).finalize)
return instance, nil
}