opencv 可视化函数

目录

cv2.rectangle

cv2.putText

cv2.circle

---

cv2.rectangle

cv2.putText

    cv2.rectangle(img, (x1, y1), (x2, y2), (0, 255, 0), thickness=tl, lineType=cv2.LINE_AA)

    clors = [(255, 0, 0), (0, 255, 0), (0, 0, 255), (255, 255, 0), (0, 255, 255)]

    for i in range(5):
        point_x = int(landmarks[2 * i])
        point_y = int(landmarks[2 * i + 1])
        cv2.circle(img, (point_x, point_y), tl + 1, clors[i], -1)

    tf = max(tl - 1, 1)  # font thickness
    label = str(conf)[:5]
    cv2.putText(img, label, (x1, y1 - 2), 0, tl / 3, [225, 255, 255], thickness=tf, lineType=cv2.LINE_AA)

cv2.circle

含义：图片，中心店，半径，颜色，圆轮廓粗细，线类型。

cv2.circle(img_show, (x_new, y_new), 1, (255, 0, 0), 2)