数字图像处理1、in the hardware peripherals of image processing, which of the following equipments does not belong to the input devices?——[单选题]A Electron cameraB CCD video cameraC Desktop image scannerD Light tape正确答案：D2、The number of bits required to store an 1024*512 image of 4 gray levels is ( )——[单选题]A 256KB 512KC 1MD 2M正确答案：C3、An image of size 1024 × 1024 pixels in which the intensity of each pixel is an8 bit quantity requires the storage space ( if not compressed).——[单选题]A 1 KBB 1 MBC 2 KBD 2 MB正确答案：B4、Intensity range of 8-bit pixel image is （） .——[单选题]A 0 to 7B 0 to 15C 0 to 31D 0 to 255正确答案：D5、By its very nature, the appearance of false contours in image is because ( )——[单选题]A the number of gray levels of the image is not enoughB the spatial resolution of the image is not high enoughC the number of gray levels of the image is excessiveD the spatial resolution of the image is too enough正确答案：A6、In the process of image sampling and quantization, the appearance of checkboard effect is because ( )——[单选题]A the number of gray levels of the image is not enoughB the spatial resolution of the image is not high enoughC the number of gray levels of the image is excessiveD the spatial resolution of the image is too enough正确答案：B7、When you enter a dark room on a bright day, it takes some time to see well enough, this is the visual process or visual phenomenon of——[单选题]A Brightness adaptationB Brightness discriminationC Optical illusionD Simultaneous contrast正确答案：A8、Sampling of an image is required for （）.——[单选题]A QuantizationB SharpeningC SmoothingD Digitization正确答案：D9、An image function f(x,y) is characterized by f(x,y)=i(x,y)r(x,y) where.——[单选题]A 0<i(x,y)<1&0<r(x,y)<∞B 0<i(x,y)<1&0<r(x,y)<1C 0<i(x,y)<∞&0<r(x,y)<∞D 0<i(x,y)<∞&0<r(x,y)<1正确答案：D10、A pixel p at coordinates (x,y) has four horizontal and vertical neighbours whose coordinates are given by.——[单选题]A (x-1,y-1),(x-1,y),(x,y-1),(x,y+1)B (x+1,y),(x-1,y),(x,y+1),(x,y-1)C (x+1,y-1),(x-1,y),(x-1,y+1),(x,y+1)D (x+1,y-1),(x-1,y),(x,y+1),(x-1,y+1)正确答案：B11、The D4 distance (city distance) between p and q with coordinates (x,y), (s,t) is defined as.——[单选题]ABCD正确答案：A12、Mach bands effect——[单选题]A can be analyzed using simutaneous contrastB depends on the brightness adaptive level of human visual systemC indicates the same fact as simutaneous contrastD indicates that the actual brightness distributions of the bands are influenced by the subjective brightness curve正确答案：C13、The lens focuses light from objects onto the——[单选题]A corneaB retinaC scleraD iris正确答案：B14、The spatial resolution of an image is determined by how ( ) was carried out.——[单选题]A QuantizationB SharpeningC SmoothingD Sampling正确答案：D15、In the human visual system, the perceived intensity of a region is related to the light intensities of the regions surrounding it, this is called ( ).——[单选题]A brightness adaptationB simultaneous contrastC brightness discriminationD optical illusions正确答案：B16、The colours of an object that we perceive are determined by the nature of( ).——[单选题]A the light reflected from the objectB the light shone onto the objectC the light absorbed by the objectD the external light正确答案：A17、The human visual system can perceive approximately different light intensity levelsHowever, at any one time we can only discriminate between a much smaller number,this is indicated in the phenomenon called ( ).——[单选题]A Brightness adaptationB Brightness discriminationC Optical illusionD Simultaneous contrast正确答案：A18、Suppose there is a pixel p at coordinates (x,y), it's diagonal neighbor has four pixels, whose coordinates are given by ( ).——[单选题]A (x-1,y-1),(x-1,y),(x,y-1),(x,y+1)B (x-1,y-1),(x+1,y-1),(x-1,y+1),(x+1,y+1)C (x+1,y-1),(x-1,y),(x-1,y+1),(x,y+1)D (x+1,y-1),(x-1,y),(x,y+1),(x-1,y+1)正确答案：B19、The distance (chessboard distance) between p and q with coordinates (x,y), (s,t) is defined as. ——[单选题]ABCD20、In Matlab, which command can we use to dispaly an image?——[单选题]A imreadB imshowC imhistD imwrite正确答案：B21、In matlab, suppose x=[1 2 3 4;5 6 7 8;9 10 11 12]，after run the commandx(:,[2,3])=[];what is the size of x?——[单选题]A 1*4B 3*2C 3*4D 3*3正确答案：B22、In matlab command window, if we run the followong command,what is the result shown in the command window？X=[1 2 3 4;5 6 7 8;9 10 11 12];X(5)——[单选题]A 5B 6C 0D 10正确答案：B23、In Matlab，Suppose x is a 1*6 array，which command can delete the fifth element of x？——[单选题]A delete x(5)B delete x(4)C x(5)=[]D x(4)=[]正确答案：C24、In MATLAB，what is the result of the expression 3~=4？——[单选题]A 1B 0C 7D 1225、In matlab, the command "clear" is used to ( )——[单选题]A Shows the variable in the workspaceB Deletes all variables in the workspaceC clean the command windowD clean the figure window正确答案：B26、In MATLAB，what is the result of x after run the command x=1:2:10？——[单选题]A 1 2 3 4 5 6 7 8 9 10B 1 3 5 7 9 11C 1 3 5 7 9D 2 4 6 8 10正确答案：C27、if x=2.6 ,what is the result of round(x), floor(x), ceil(x) and fix(x)?——[单选题]A 2,2,3,2B 3,2,3,2C 3,2,3,3D 2,2,3,3正确答案：B28、In MATLAB，what is the result of the expression 3==3？——[单选题]A 1B 0C 7D 12正确答案：A29、if x=-2.6 ,what is the result of round(x), floor(x), ceil(x) and fix(x)?——[单选题]A -2,-3,-2,-2B -3,-3,-2,-2C -3,-3,-2,-3D -2,-3,-2,-330、In matlab, the command "save" is used to ( )——[单选题]A Shows the variable in the workspaceB Saves all variables in the workspace to diskC clean the command windowD clean the figure window正确答案：B31、In MATLAB，what is the result of x after run the command x=10:-2:1？——[单选题]A 10 9 8 7 6 5 4 3 2 1B 10 8 6 4 2 0C 10 8 6 4 2D 2 4 6 8 10正确答案：C32、In Matlab, which command can we use to read an image?——[单选题]A imshowB imreadC imhistD imwrite正确答案：B33、In MATLAB, what is the result of a(5) after run these two commands?A=[1 2 3 4]；A(6)=6;——[单选题]A 6B 5C 4D 0正确答案：D34、In Matlab，Suppose x is a 2*3 array，which command can delete the 5th elementof x？——[单选题]A delete x(5)B delete x(4)C x(4)=[]D x(5)=[]35、In matlab, suppose x=[1 2 3 4;5 6 7 8;9 10 11 12]，after run the commandx([1,3],:)=[];what is the size of x?——[单选题]A 3*2B 1*4C 3*4D 3*3正确答案：B36、In matlab，suppose x is a 3*4 matrix，after run the following command，what is the size of x？X=[1 2 3 4;5 6 7 8;9 10 11 12];Y=x(2,2:4);X=[x,y'];——[单选题]A 3*4B 4*3C 3*5D 5*3正确答案：C37、in Matlab，if we want to display four images in the same figure window as the layout shown in the following，which command do we need to use to display an image in the area 2?——[单选题]A subplot(1,4,2)B subplot(4,1,2)C subplot(2,2,2)D subplot(2,2,3)正确答案：C38、In matlab, suppose x=[1 2 3 4;5 6 7 8;9 10 11 12]，after run the commandx=[x;13 14 15 16];what is the size of x?——[单选题]A 3*5B 4*4C 3*4D 3*3正确答案：B39、In Matlab，Suppose x is a 1*6 array，which command can add 3 elements to x？——[单选题]A add x(7:9)B add x(3)C x(9)=10D x(9)=[]正确答案：C40、The corresponding relations between an image and its gray histogram is ( )——[单选题]A one to oneB many-to-oneC one-to-manyD all false正确答案：B41、There is a light ring on the dark background of a gray level image, can be used to make the ring thinner.——[单选题]A Median filterB Max filterC Min filterD Midpoint filter正确答案：C42、In the following four operators, which one belongs to the secondderivative? .——[单选题]A SobelB RobertsC PrewittD Laplacian正确答案：D43、When powerlaw transformation is used to as grayscale transformation,Which type of images as follows can be the transformationPerformed on for enhancement if the power is over 1?——[单选题]A Overall image intensities are on the dark sideB Overall image intensities are on the bright sideC Image details are hidden in the dark backgroundD Images have both too bright and too dark background正确答案：B44、( )can be applied for motion detection.——[单选题]A additionB substactionC multiplicationD division正确答案：B45、In the following four filters, which one belongs to a linear filter?——[单选题]A Median filterB Averaging filterC Max filterD Min filter正确答案：B46、The purpose of compressing dynamic range of image graylevles can be achieved with the help of logarithmic transformation , because ( )——[单选题]A graylevels dynamic range before transformation is larger than that after transformationB only partial range of graylevel values ha been taken after transformationC the ranges of graylevel before and after the transformation are differentD logarithmic transformation curve is monotonically increasing curve正确答案：B47、Logarithmic transform is useful if we wish to enhance details in the ( ) areas of the image, but at the expense of details in the ( ) areas.——[单选题]A dark darkB dark brightC bright darkD bright bright正确答案：B48、The range of intensity change of certain scene image obtained from camera is called ( ),which is the range from the darkest to the brighest in an image.——[单选题]A gray levelB dynamic rangeC spatial resolutionD histogram正确答案：B49、The gray level of an overexposed (washed out) image focuses on ( ) range, while the gray level of an underexposed image focuses on ( ) range.——[单选题]A low-brightness ,low-brightnessB low-brightness ,high-brightnessC high-brightness ,low-brightnessD high-brightness ,high-brightness正确答案：C50、Geometric transformation of images does not change the pixel's( ),but change the pixel's( ).——[单选题]A positon, valueB value,positionC contrast,positionD position, contrast正确答案：B51、Corresponding to different scene contents, digital image can be generally divided into three types, they are ( )——[多选题]A binary imageB gray imageC index imageD color image正确答案：ABD52、Which of the following adjacencies can eliminate ambiguity of path between pixels ( )——[多选题]A 4-adjacencyB 8-adjacencyC m-adjacencyD mixed adjacency正确答案：CD53、Image digitization process consists of two steps——[多选题]A samplingB transformationC quantizationD scanning正确答案：AC54、The retina is covered with light receptors called——[多选题]A rodsB conesC foveaD lens正确答案：AB55、Image digitization process consists of two steps，sampling and quantization. These two steps determine the ( ) and ( ) of an image, respectively.——[多选题]A Spatial resolutionB ResolutionC Intensity level resolutionD Dynamic domain正确答案：AC56、（Single choice）Which adjacency between pixels is the sufficient condition of other types of adjacency ？——[多选题]A 4-adjacencyB 8-adjacencyC m-adjacencyD mixed adjacency正确答案：A57、Three commonly-used neighbors in image processing are( )——[多选题]A 4-neighborsB 8-neighborsC diagonal neighborsD mixed neighbors正确答案：ABC58、MATLAB variable names ( )——[多选题]A must begin with a letterB can contain any combination of letters, numbers and underscore (_C must be unique in the first 31 charactersD can begin with a number正确答案：ABC59、The commonly-used histogram processing methods include ( ) and ( ).——[多选题]A histogram equalizationB histogram adjustmentC histogram specificationD histogram transform正确答案：AC60、The following spatial filters belonged to non-linear filters are ( )——[多选题]A median filterB max filterC min filterD averaging filter正确答案：ABC61、The cone body is mainly located in the middle part of the retina,and is highly sensitive to color. ——[判断题]A 正确B 错误正确答案：A62、The total range of distinct intensity levels the eye can discriminate simultaneously is rather small when compared with the total adaptation range. ——[判断题]A 正确B 错误正确答案：A63、The colours that we perceive are determined by the nature of the light absorbed by an object. ——[判断题]A 正确B 错误64、If a command is followed by a semicolon (;), result of the computation is not shown on the command window.——[判断题]A 正确B 错误正确答案：A65、If a command is followed by a commas (,), result of the computation is not shown on the command window——[判断题]A 正确B 错误正确答案：B66、In command window of Matlab, Ellipsis (…) means continuing on the next line.——[判断题]A 正确B 错误正确答案：A67、MATLAB is case sensitive: “name”, “Name” and “NAME” are consider ed different variables——[判断题]A 正确B 错误正确答案：A68、In Matlab, a two-dimensional matrix is stored in memory in Column major order.——[判断题]A 正确B 错误正确答案：A69、In MATLAB relational operators ,false is represented by 0 and true is represented by 1 (non-zero).——[判断题]A 正确B 错误70、Suppose x is a 3*4 matrix, then a(2,3) is the 8th element of x when in memory.——[判断题]A 正确B 错误正确答案：A71、In Matlab, imshow funtuntion can display images on the screen.——[判断题]A 正确B 错误正确答案：A72、Break statement terminates the execution of a loop and passes the control to the next statement after the end of the loop.——[判断题]A 正确B 错误正确答案：A73、Continue statement terminates the current pass through the loop and returns control to the top of the loop.——[判断题]A 正确B 错误正确答案：A74、In Matlab, the command window can input commands and show the results. ——[判断题]A 正确B 错误正确答案：A75、In the binary image, each pixel value is represented by 1 bit, value 1 represents white and value 0 represents ( )——[填空题]正确答案：black76、Consider the image segment shown .Two pixels p and q are at the locations shown in the figure, please compute their Euclidean（）,city-block （）andchessboard distances（）respectively。
