a. Image scaling
b. Power law transformation c. Image negative d. Log transformation
12. The field of digital image processing refers to processing digital images by means: (数字图像处理指
用什么来处理数字图像)
a. Digital computer b. Super computer c. mini-computer d. None of these
13. This is a:
（下面这个模板是什么滤波器模板）
-1 -1 -1 -1 8 -1 -1 -1 -1 a. Point Detection mask （点检测模板）
b. Line detection mask (Horizontal) （水平线检测模板） c. Line detection mask (vertical) （垂直线检测模板） d. none of above
14. Direct manipulation of pixel in an image (on the image plane) method is called.（直接对图像像素进
行操作的方法称为什么）
a. Spatial domain （空域） b. Frequency domain （频域） c. Fourier transform（傅里叶变换） d. None of the above
15. Digitizing the ______values is called sampling. （数字化什么称为采样）
a. Amplitude b. coordinate c. frequency d. none of the above
16. In which technique which is used to determine changes between two images?
（下面哪种方法可以用来计算两副图像间的变化）
a. Segmentation b. skin texture analysis c. image addition d. Image differencing
17. Which is the image processing technique used to improve the quality of image for human viewing?
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（下面哪种图像处理技术可以用来提高图像视觉质量）
a. compression b. enhancement c. restoration d. analysis
18. Which of the following is correct command for image reading?
（下面哪个matlab函数是用来读图像的）
a. Imageread(“ ”); b. read(“ ”): c. Fread(? ?); d. imread(? ?);
19. Which of the following is correct command to find resize of image?
（下面哪个matlab函数是用来调整图像大小的）
a. imresize(); b. resize(): c. size( ); d. findesize(? ?);
20. Which of the following command is used to find size of image?
（下面哪个matlab函数可以得到图像大小）
a. imsize(“ ”); b. resize(): c. size( );
d. findsize(? ?);
21. A digital image is a representation of a two dimensional ___ (数字图像用二维什么来表示)
a. Float b. Array c. String
d. All of the above
22. _____is the term used most widely to denote the Elements of a digital image.（什么术语用于指代数
字图像的元素）
a. Pixel b. intensity c. gray level d. None of the above
23. ____ Values typically represent gray levels, colors, heights, Opacities etc. （什么值一般用来表示灰
度级，颜色，高度和透明度等）
a. Digital image
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b. Intensity c. pixel
d. none of the above
24. 2 bpp image can have____ colors（2 bpp图像可以有多少种颜色）
a. 4 b. 6 c. 8 d. 2
25. The ____ is more sensitive to errors in green than in the other two primary colors（什么对绿色错误
比其它二个基色的错误更敏感）
a. Camera b. Scanner c. MRI d. Human Eyes
26. BW Color: (0 black, 1 white) it?s also called ____ color（黑白色也叫什么色）
a. Gray b. Secondary c. Binary
d. None of the above
27. 16 bit color format image has ___ different colors in it. （16位彩色格式图像有多少种不同的颜色）
a. 65536 b. 256 c. 65540
d. None of the above
28. Sampling and quantization will convert a continuous image signal f to a discrete ____ form.（采样和
量化把一个连续图像信号转化成一个离散什么形式）
a. Digital b. Analog c. Picture
d. None of the above
29. Which statement represent Region::（下面哪个定义表示区域）
a. from pixel p with coordinates (x,y) to pixel q with coordinates (s,t) is a sequence of distinct
pixels with coordinates (x0,y0), (x1,y1),….. ,(xn,yn), where (x0,y0)=(x,y) and (xn,yn)=(s,t) and (xi,yi) adjacent to (xi-1,yi-1), 1<=i<=n （从坐标为(x,y)的像素p到坐标为(s,t)的像素q的通路是不同像素组成的像素系列：(x0,y0), (x1,y1),….. ,(xn,yn)，这里 (x0,y0)=(x,y) ， (xn,yn)=(s,t) 并且 (xi,yi) 与(xi-1,yi-1) 邻接, 1<=i<=n）
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b. A set of pixel in an image where all component pixels are connected. （所有相互连接的像素
的集合）
c. 4‐adjacency: two pixels p and q with values in V are 4‐adjacent if q is in the set N4(p) d. None of the above
30. Two regions Ri and Rj are said to be adjacent if their _____forms a connected set; otherwise, they are
disjoint（两个区域Ri和Rj定义成是邻接的，如果它们的什么形成一个连接集，否则它们不相连）
a. Union b. Intersection c. Both (a) and (b) d. None of the above
31. The equation is called : （下面这个公式是什么公式）
D4(p,q)=|x-s|+|y-1|
a. Euclidian Distance b. Chess board distance c. City Block distance d. None of the above
32. s =T(r) = a*r (?a? is a constant) is use for. （s =T(r) = a*r起什么作用）
a. Power law transformation b. Image negative c. Log transformation d. Image scaling
33. This is a:
-1 -1 -1 2 2 2 -1 -1 -1 a. Point Detection mask b. Line detection mask (+450) c. Line detection mask (vertical) d. none of above
34. An ........is a place where there is a rapid change in the brightness (or other property) of an image.（图
像中的什么有亮度或其它属性的快速变化 ） a. edge b. point c. line
d. none of above
35. Image negatives a gray level transformation is defined as:（灰度图像反转操作定义为）
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a. s=L-r b. s=r-1-L c. none d. s=(L-1)-r
36. PGM stand for_____ （PGM表示什么）
a. Portable Gray Map b. Permanent Gray Map c. Primary Gray Map d. None of the above
37. The human eye is more sensitive to errors in _____ than in the other two primary colors（人类眼睛对
什么基色的错误比其它基色更敏感）
a. Blue b. Red c. Green
d. None of the above
38. Which statement is used to enclose the for loop body.（matlab中下面哪个用来表示for循环体的结
束）
a. } b. : c. END d. ;
39. Which one is wrong option for image reading in MATLAB. （对于读取图像，matlab中下面哪个
是错误的选项）
a. imread(? ?); b. loadimage(? ?); c. only (a)
d. none of the above
40. How to convert RGB image to gray (matlab中哪个函数可以用来将RGB图像转换成灰度图)
a. rgbgray( ); b. imrgb2gray( ); c. rgb2gray();
d. none of the above
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