网站设计远程培训,水果电商运营方案,青海网站如何建设,华为最新版#用 OpenCV 标注 bounding box主要用到下面两个工具——cv2.rectangle() 和 cv2.putText()。用法如下#xff1a;
# cv2.rectangle()
# 输入参数分别为图像、左上角坐标、右下角坐标、颜色数组、粗细cv2.rectangle(img, (x,y), (xw,yh), (B,G,R), Thickness)
# cv2.putText()
…#用 OpenCV 标注 bounding box主要用到下面两个工具——cv2.rectangle() 和 cv2.putText()。用法如下
# cv2.rectangle()
# 输入参数分别为图像、左上角坐标、右下角坐标、颜色数组、粗细cv2.rectangle(img, (x,y), (xw,yh), (B,G,R), Thickness)
# cv2.putText()
# 输入参数为图像、文本、位置、字体、大小、颜色数组、粗细cv2.putText(img, text, (x,y), Font, Size, (B,G,R), Thickness)
#举例
import cv2
imgName 001.jpg
img cv2.imread(imgName)
# 画矩形框
cv2.rectangle(img, (10,20), (50,60), (0,255,0), 4)
# 标注文本
font cv2.FONT_HERSHEY_SUPLEX
text 001
cv2.putText(img, text, (100, 100), font, 2, (0,0,255), 1)
cv2.imwrite(new.jpg, img)
其中字体可以选择
FONT_HERSHEY_SIMPLEX
Python: cv.FONT_HERSHEY_SIMPLEX
normal size sans-serif font
FONT_HERSHEY_PLAIN
Python: cv.FONT_HERSHEY_PLAIN
small size sans-serif font
FONT_HERSHEY_DUPLEX
Python: cv.FONT_HERSHEY_DUPLEX
normal size sans-serif font (more complex than FONT_HERSHEY_SIMPLEX)
FONT_HERSHEY_COMPLEX
Python: cv.FONT_HERSHEY_COMPLEX
normal size serif font
FONT_HERSHEY_TRIPLEX
Python: cv.FONT_HERSHEY_TRIPLEX
normal size serif font (more complex than FONT_HERSHEY_COMPLEX)
FONT_HERSHEY_COMPLEX_SMALL
Python: cv.FONT_HERSHEY_COMPLEX_SMALL
smaller version of FONT_HERSHEY_COMPLEX
FONT_HERSHEY_SCRIPT_SIMPLEX
Python: cv.FONT_HERSHEY_SCRIPT_SIMPLEX
hand-writing style font
FONT_HERSHEY_SCRIPT_COMPLEX
Python: cv.FONT_HERSHEY_SCRIPT_COMPLEX
more complex variant of FONT_HERSHEY_SCRIPT_SIMPLEX
FONT_ITALIC
Python: cv.FONT_ITALIC
flag for italic font
字体大小数值越大字体越大
字体粗细越大越粗数值表示描绘的线条占有的直径像素个数
