OCR C++ Tesseract方向与语言检测(OSD)

这个程序演示Tesseract OCR检测文字的旋转角度(方向)和语言。输入图片是一份天城文文本(Devanagari)旋转270度后的图像。没有旋转的输入图片如下图所示程序运行后会在CMD里显示识别结果旋转角度(方向)检测为270度置信度8.02语言检测为Devanagari置信度为2.00代码#include tesseract/baseapi.h #include leptonica/allheaders.h int main() { const char* inputfile devatest-rotated-270.png; PIX *image pixRead(inputfile); tesseract::TessBaseAPI *api new tesseract::TessBaseAPI(); api-Init(NULL, osd); api-SetPageSegMode(tesseract::PSM_OSD_ONLY); api-SetImage(image); int orient_deg; float orient_conf; const char* script_name; float script_conf; api-DetectOrientationScript(orient_deg, orient_conf, script_name, script_conf); printf(************\n Orientation in degrees: %d\n Orientation confidence: %.2f\n Script: %s\n Script confidence: %.2f\n, orient_deg, orient_conf, script_name, script_conf); // Destroy used object and release memory api-End(); delete api; pixDestroy(image); return 0; }