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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) {
OCRMatchSet matches;
MEASURE("OCR", { matches = extractTextMatches(image_path); });
OCRMatch *ptr = new OCRMatch[matches.size()];
std::copy(matches.begin(), matches.end(), ptr);
*size = matches.size();
std::cout << "Match count: " << *size << std::endl;
return ptr;
}
OCRMatchSet extractTextMatches(const char *imagePath) {
Pix *image = image::loadImage(imagePath);
if (image == nullptr) {
return OCRMatchSet();
}
// 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;
// clang-format off
recognizers.push_back(
std::make_unique<Recognizer>("top-left", 0, 0, width / 2, height / 2));
recognizers.push_back(
std::make_unique<Recognizer>("top-right", width / 2, 0, width / 2, height / 2));
recognizers.push_back(
std::make_unique<Recognizer>("bottom-left", 0, height / 2, width / 2, height / 2));
recognizers.push_back(
std::make_unique<Recognizer>("bottom-right", width / 2, height / 2, width / 2, height / 2));
// clang-format on
return runRecognizers(recognizers, image);
}
OCRMatchSet
runRecognizers(std::vector<std::unique_ptr<Recognizer>> &recognizers,
Pix *image) {
OCRMatchSet results;
std::shared_ptr<Pix> sharedImage(image, [](Pix *p) { pixDestroy(&p); });
std::vector<std::thread> workers;
workers.reserve(recognizers.size());
for (auto &recognizer : recognizers) {
workers.push_back(std::thread([&recognizer, &sharedImage]() {
MEASURE(recognizer->id, { recognizer->recognize(sharedImage.get()); })
}));
}
for (std::thread &t : workers) {
if (t.joinable())
t.join();
}
for (auto &recognizer : recognizers) {
for (auto &match : recognizer->getResults())
results.insert(match);
}
return results;
}
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