以下哪个使用了Otsu二值化?
A、cv2.threshold(img,127,255,cv2.THRESH_BINARY)
B、cv2.threshold(img,127,250,cv2.THRESH_BINARY)
C、cv2.threshold(blur,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU)
D、cv2.threshold(img,127,255,cv2.THRESH_BINARY)
结构施工图中箍筋Φ8@200代表的含义是( )
A. Ⅰ级钢筋,直径8mm,分布间距200mm
B. Ⅱ级钢筋,直径8mm,分布间距200mm
C. Ⅰ级钢筋,直径200mm,分布间距8mm
D. Ⅱ级钢筋,直径200mm,分布间距8mm