Hi all,
Hopefully someone knowledgeable with be able to help me with this.
I've modified the baseapi example from here:
https://github.com/tesseract-ocr/tesseract/wiki/APIExample
#include "stdafx.h"#include <baseapi.h>#include <allheaders.h>
using namespace tesseract;
int main(){
char *outText;
TessBaseAPI *api = new TessBaseAPI();
// Initialize tesseract-ocr with English, without specifying tessdata
path
if (api->Init(NULL, "eng")) {
fprintf(stderr, "Could not initialize tesseract.\n");
exit(1);
}
// Open input image with leptonica library
Pix *image = pixRead("E:\\visual studio
2015\\Projects\\TEST_TESS\\Debug\\paving.png");
api->SetImage(image);
// Get OCR result
api->SetRectangle(161, 244, 271, 35);//this rectangle corresponds to
the text: "FOR A FREE ESTIMATE CALL"
outText = api->GetUTF8Text();
printf("OCR output:\n%s", outText);
// Destroy used object and release memory
api->End();
delete[] outText;
pixDestroy(&image);
return 0;}
I've added the line to SetRectangle method call, and I've specified an
image I've obtained from a random google search
with plenty of text throughout.
<https://lh3.googleusercontent.com/-ZSo0qm99x9g/WNg9_8JRXHI/AAAAAAAAAJM/RF3v-NsDlKwa7HTamoWtUPW2avuS-5ZFQCLcB/s1600/16095018aa_f.jpg>
I've converted this to a png because I was getting the following warning:
"Warning. Invalid resolution 0 dpi. Using 70 instead."
I call SetRectangle with the pixel coordinates for: "FOR A FREE ESTIMATE
CALL":
api->SetRectangle(161, 244, 271, 35);
Unfortunately, that's not text that is returned by GETUTF8Text(), instead I
get: | After Hrs 647-9709 -- Saint
The width appears correct, but the left coordinate corresponding to the
returned text is around 0, and the top is around 345.
What's the issue here?
Thanks.
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