cv2.putText()函数
这个函数是opencv里面向图像上添加文本内容的函数
cv2.putText(img, str(i), (123,456)), font, 2, (0,255,0), 3)
各参数依次是:图片,添加的文字,左上角坐标,字体,字体大小,颜色,字体粗细
其中字体可以选择
Python: cv.FONT_HERSHEY_SIMPLEX
normal size sans-serif font
Python: cv.FONT_HERSHEY_PLAIN
small size sans-serif font
Python: cv.FONT_HERSHEY_DUPLEX
normal size sans-serif font (more complex than FONT_HERSHEY_SIMPLEX)
Python: cv.FONT_HERSHEY_COMPLEX
normal size serif font
Python: cv.FONT_HERSHEY_TRIPLEX
normal size serif font (more complex than FONT_HERSHEY_COMPLEX)
Python: cv.FONT_HERSHEY_COMPLEX_SMALL
smaller version of FONT_HERSHEY_COMPLEX
Python: cv.FONT_HERSHEY_SCRIPT_SIMPLEX
hand-writing style font
Python: cv.FONT_HERSHEY_SCRIPT_COMPLEX
more complex variant of FONT_HERSHEY_SCRIPT_SIMPLEX
Python: cv.FONT_ITALIC
flag for italic font