______ operation takes a single input image into a single output image in such a way that each output pixel's gray level depends only upon the gray level of the corresponding input pixel.

Each pixel has two attributes at least: ______ and gray-level value.

Gray hair should be respected. The “gray hair” in this sentence refers to _______

gray syndrome:

The high level and low level specified by LVTTL are ________. A: high level 5.0V low level 0V B: high level 3.3V low level 0V C: high level 2.4V~5.0V low level 0V~0.5V D: high level 2.4V~3.3V low level 0V~0.4V

对于一张彩色图像image.jpg，通过opencv读取其灰度图，下面的方法正确的是（）。 A: img = cv2.imread('image.jpg')gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY); B: gray = cv2.imread('image.jpg',0); C: gray = cv2.imread('image.jpg',1)； D: gray = cv2.imread('image.jpg',cv2.IMREAD_GRAYSCALE)；

Fiction has two levels of understanding, the narrative level and the<br/>authorial level, or the <br/>surface<br/>level and the deep level of understanding.()

Strategic level of goals and plans shape the tactical level and the operational level of goals and plans.

【单选题】享有报价优先推荐和Popular Supplier标识的等级是? A. Level 4 B. Level 1 和 Level 2 C. Level 3 和Level 4 D. Level 1

2、To build core competence, a business should work from such aspects as（） A: strategic level B: organizational level C: technological level D: customer level