Image to Text Conversion Via C++

Extract Text from Images BMP, GIF, JPG, PNG within C++ based applications.

Image to Text Conversion

To extract text from images via C++ OCR API, Process depends on scenario for using the relevant function to perform OCR on page, or image containing a single line. API provides page (const char * image_path, wchar_t * buffer, size_t buffer_size), pages_multi (const char *path_to_recognize, wchar_t *buffer, size_t buffer_size, RecognitionSettings settings), line (const char *image_path, wchar_t *buffer, size_t buffer_size) and more. Here is list of all OCR functions that developers can perform easily. Below are the code examples for performing ocr on a page and line.

C+ Code for Image Page to Text Conversion

	std::string png_image_path = "sample.png";

	// Prepare buffer for result (in symbols, len_byte = length * sizeof(wchar_t))
	const size_t leng = 4096;
	wchar_t bffr[leng] = { 0 };

	// Perform OCR on Page
	size_t size = aspose::ocr::page(png_image_path.c_str(), bffr, leng);

	//Print result
	std::wcout << bffr << L"\n";

view raw convert-full-image-page-to-text.cpp hosted with ❤ by GitHub

C++ Code to Extract Text From Image Page Area

	std::string path = "sourceImage.jpg";

	// Prepare buffer for result (in symbols, len_byte = length * sizeof(wchar_t))
	const size_t leng = 4096;
	wchar_t bfr[leng] = { 0 };

	int x = 138, y = 352, w = 2033, h = 537;

	// Perform OCR of page selected area
	size_t size = aspose::ocr::page_rect(path.c_str(), bfr, leng, x, y, w, h);

	//Print result
	std::wcout << bfr << L"\n";

view raw convert-image-page-area-to-text.cpp hosted with ❤ by GitHub

C++ Code for Image Single Line to Text

	std::string path = "sample_image.jpg";

	// Prepare buffer for result (in symbols, len_byte = len * sizeof(wchar_t))
	const size_t leng = 4096;
	wchar_t bffr[leng] = { 0 };

	// Perform OCR to extract line text from image
	size_t size = aspose::ocr::line(image_path.c_str(), bffr, leng);

	//Print result
	std::wcout << bffr << L"\n";

view raw convert-image-single-line-characters-to-text.cpp hosted with ❤ by GitHub

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