图片上添加带背景的文字

图片上添加带背景的文字

static void draw_label(const char *pstrLabelName, cv::Mat &mat, cv::Point &point, cv::Scalar recColor)

{

//int fontFace = FONT_HERSHEY_SCRIPT_SIMPLEX; //手写风格字体

int fontFace = 2;

double fontScale =1; //字体缩放比

int thickness = 1;

int baseline = 0;

cv::Size textSize = cv::getTextSize(pstrLabelName, fontFace, fontScale, thickness, &baseline);

baseline += thickness;

//draw the box

//rectangle(mat, point + cv::Point(0, baseline), point + cv::Point(textSize.width, -textSize.height), recColor, CV_FILLED);

rectangle(mat, point + cv::Point(0, -textSize.height), point + cv::Point(textSize.width, textSize.height / 2), recColor, CV_FILLED);

putText(mat, pstrLabelName, point, fontFace, fontScale, cv::Scalar::all(255), thickness, 8);

}