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#include <leptonica/allheaders.h>
#include <memory>
#include <ostream>
#include <tesseract/baseapi.h>
#include <thread>
#include <vector>
#include "../include/image.h"
#include "../include/libchelleport.h"
#include "../include/recognizer.h"
extern "C" OCRMatch *findWordCoordinates(const char *image_path, int *size) {
std::vector<OCRMatch> matches;
MEASURE("OCR", { matches = extractTextMatches(image_path); });
std::cout << "Match count: " << matches.size() << std::endl;
static OCRMatch *ptr = new OCRMatch[matches.size()];
std::copy(matches.begin(), matches.end(), ptr);
*size = matches.size();
return ptr;
}
std::vector<OCRMatch> extractTextMatches(const char *imagePath) {
std::vector<OCRMatch> results;
Pix *image = image::loadImage(imagePath);
if (image == nullptr)
return results;
// printf("imagePath: %s\n", imagePath);
// pixWrite(imagePath, image, IFF_JFIF_JPEG);
int width = pixGetWidth(image);
int height = pixGetHeight(image);
std::vector<std::unique_ptr<Recognizer>> recognizers;
recognizers.push_back(
std::make_unique<Recognizer>(0, 0, width / 2, height / 2));
recognizers.push_back(
std::make_unique<Recognizer>(width / 2, 0, width / 2, height / 2));
recognizers.push_back(
std::make_unique<Recognizer>(0, height / 2, width / 2, height / 2));
recognizers.push_back(std::make_unique<Recognizer>(width / 2, height / 2,
width / 2, height / 2));
return runRecognizers(recognizers, image);
}
std::vector<OCRMatch>
runRecognizers(std::vector<std::unique_ptr<Recognizer>> &recognizers,
Pix *image) {
std::vector<OCRMatch> results;
std::shared_ptr<Pix> sharedImage(image, [](Pix *p) { pixDestroy(&p); });
std::vector<std::thread> workers;
workers.reserve(recognizers.size());
for (auto &ext : recognizers) {
workers.push_back(std::thread(
[&ext, &sharedImage]() { ext->recognize(sharedImage.get()); }));
}
for (std::thread &t : workers) {
if (t.joinable())
t.join();
}
for (auto &ext : recognizers) {
for (auto &match : ext->getResults())
results.push_back(match);
}
return results;
}
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