opencv_gui_dev1.py 文件源码

def draw_rectangle(event,x,y,flags,param):
    if event == cv2.EVENT_LBUTTONDOWN:
        drawing = True
        param.drawing=True
        param.setxy(x,y)
        param.printxy()

    elif event == cv2.EVENT_MOUSEMOVE:
        if param.drawing == True:
            a=layering(param.layer_data,param.layer_index)
            img_temp_rect=a.copy()
            img_temp_rect=cv2.rectangle(img_temp_rect,(param.ix,param.iy),(x,y),(0,255,0),2)
            cv2.imshow('image',img_temp_rect)


    elif event == cv2.EVENT_LBUTTONUP:
        param.drawing = False
        shape_dimension1 = np.asarray((param.ix,param.iy))
        shape_dimension2=np.asarray((x,y))

        param.layer_data.resize(param.layer_data.shape[0]+1,4)

        k = param.layer_data.shape
        param.layer_data[k[0]-1, 0] = 1
        param.layer_data[k[0]-1, 1] = shape_dimension1
        param.layer_data[k[0]-1, 2] = shape_dimension2
        param.layer_data[k[0]-1,3]=param.layer_index+1
        param.layer_index=param.layer_index+1
        print param.layer_data
        a=layering(param.layer_data,param.layer_index)