func (t *TesseractAPI) BaseAPIProcessPages(filename string, retry_config *C.char, timeout_millisec int) string {
cFilename := C.CString(filename)
defer C.free(unsafe.Pointer(cFilename))
out := C.TessBaseAPIProcessPages(t.api, cFilename, retry_config,
C.int(timeout_millisec))
result := C.GoString(out)
return result
}
func main() {
// get the image to try
flag.Parse()
image := flag.Arg(0)
// print the version
fmt.Println(tesseract.Version())
// create new tess instance and point it to the tessdata location. Set language to english.
tessdata_prefix := os.Getenv("TESSDATA_PREFIX")
if tessdata_prefix == "" {
tessdata_prefix = "/usr/local/share"
}
datadir := filepath.Join(tessdata_prefix, "tessdata")
t, err := tesseract.NewTess(datadir, "deu+eng")
if err != nil {
log.Fatalf("Error while initializing Tess: %s\n", err)
}
defer t.Close()
// open a new Pix from file with leptonica
/* pix, err := leptonica.NewPixFromFile(image)
if err != nil {
log.Fatalf("Error while getting pix from file: %s\n", err)
}
defer pix.Close()
*/
t.SetPageSegMode(tesseract.PSM_AUTO_OSD)
// setup a whitelist of all basic ascii
/*err = t.SetVariable("tessedit_char_whitelist", ` !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_abcdefghijklmnopqrstuvwxyz{|}~`+"`")
if err != nil {
log.Fatalf("Failed to SetVariable: %s\n", err)
}*/
cOutputbase := C.CString("./ocr")
defer C.free(unsafe.Pointer(cOutputbase))
cDatadir := C.CString(datadir)
defer C.free(unsafe.Pointer(cDatadir))
pdfRenderer := C.TessPDFRendererCreate(cOutputbase, cDatadir)
C.TessDeleteResultRenderer(pdfRenderer)
fmt.Printf("%#v\n", pdfRenderer)
th := (*C.struct_TessBaseAPI)(t.Handle())
cImage := C.CString(image)
defer C.free(unsafe.Pointer(cImage))
C.TessBaseAPIProcessPages(th, cImage, nil, 0, pdfRenderer)
// C.TessDeleteResultRenderer(pdfRenderer)
/*
t.SetImagePix(pix)
text := t.Text()
fmt.Printf("%s", text)
ri := C.TessBaseAPIGetIterator(th)
defer C.TessResultIteratorDelete(ri)
words := make([]TessWord, 0)
if ri != nil {
pi := C.TessResultIteratorGetPageIterator(ri)
for {
words = append(words, GetWord(ri))
if C.TessPageIteratorNext(pi, C.RIL_WORD) == C.int(0) {
break
}
}
}
sort.Stable(sort.Reverse(ByFontSize(words)))
for _, word := range words {
if word.confidence > 75 && len(word.text) >= 3 {
fmt.Printf("%#v\n", word)
}
}
t.DumpVariables()
*/
}