// @param img: grayscaled and in RGB format (e.g. loaded from file).
void OCRer::process_image(Mat img) {
/*
if (_motion) {
_n_imgs = 0;
_motion = false;
}
if (_n_imgs == 0) {
_average_img = img;
} else {
// detect motion by comparing with _last_img
vector<uchar> status;
vector<float> err;
calcImageDisplacement(_last_img, img, &status, &err);
int n = 0;
int l = status.size();
for (int i = 0; i < l; i++) {
bool matched = (bool) status[i];
if (matched) {
n++;
}
}
float fn = (float) n;
float fnl = (float) _last_n_features;
float p_motion = fabs( (fn - fnl) / fnl ); // "percentage" of motion
_last_n_features = n;
if (p_motion > MOTION_P_THRESHOLD)
_motion = true;
else if (_n_imgs < MAX_N_IMGS) {
float alpha = 1.0f / (float) (_n_imgs + 1);
Mat sum = Mat::zeros(img.size(), CV_32F); // has to be CV_32F or CV_64F
accumulate(img, sum);
accumulate(_average_img, sum);
sum.convertTo(_average_img, _average_img.type(), alpha);
}
else {
return ;
}
}
_last_img = img;
_n_imgs++;
OCR(_average_img);
*/
OCR(img);
}
int __stdcall MatchCheckCode(char *szPath, char *szCode,int iThreadShod)
{
try
{
IplImage *m_Source_Pic = NULL;
m_Source_Pic = cvLoadImage(szPath);
if (!m_Source_Pic)
{
strcpy(szCode,"can not open the image");
return -2; //找不到
}
IplImage * RedChannel = cvCreateImage( cvGetSize(m_Source_Pic), 8, 1);
IplImage * GreenChannel = cvCreateImage( cvGetSize(m_Source_Pic), 8, 1);
//IplImage * BlueChannel = cvCreateImage( cvGetSize(m_Source_Pic), 8, 1);
//cvSetImageCOI(m_Source_Pic,1);
//cvCopy(m_Source_Pic,BlueChannel); //提取蓝色
cvSetImageCOI(m_Source_Pic,2);
cvCopy(m_Source_Pic,GreenChannel); //提取绿色
cvSetImageCOI(m_Source_Pic,3);
cvCopy(m_Source_Pic,RedChannel); //提取红色
cvAdd(RedChannel,GreenChannel,RedChannel);
cvThreshold(RedChannel,RedChannel,iThreadShod,255,CV_THRESH_BINARY);
strcat(szPath,"2.bmp");
cvSaveImage(szPath,RedChannel);
char *szCodeDll = OCR(szPath,-1);
CString strRet = GetRetString(szCodeDll);
strcpy(szCode,strRet);
cvReleaseImage(&m_Source_Pic);
cvReleaseImage(&RedChannel);
cvReleaseImage(&GreenChannel);
//cvReleaseImage(&BlueChannel);
return 0;
}
catch (...)
{
strcpy(szCode,"excption");
}
return -1;
}