MATLAB Quiz

To allocate the following output the command would be

t= [ 1 2 3 4 5 6 7 8 9 ]

• t=round([1.2:10])

• t=round([0.8:1:10])

• t=[1;9]

• t=[1:10]

To plot a straight line joining two points (x1,y1) and (x2,y2) the correct command would be

• plot(x1,x2,y1,y2)

• plot(x1,y1,x2,y2)

• plot([x1 x2],[y1 y2])

• plot([x1 y1],[x2 y2])

To hold the process of calculations during execution of program for a short time delta_t the command would be.

• stop(delta_t)

• hold(delta_t)

• break(delta_t)

• pause(delta_t)

If A=[ 1 2 3; 4 5 6; 7 8 9] then A(:,3)=

• [1 2 3]

• [7 8 9]

• [3;6;9]

• [ 3]

'im= imread('Image1','jpg'); ________;                % take the Red layer of the Image Which code among the following will able to read the blue scale of this image

• im(:,1)

• im(;,3)

• im(:,:,1)

• im(:,:,3)

How to filter fine noise in the image? suitable function is

• clear all

• bwareaopen

• medfilt2

• filter2

The regionproprops function helps to

• find center of region

• find area

• assigning property to the region

• locate the identified region

this command will make a graph of in which color

plot(x,y, 'k*-')

• black

• krypton

• cyan

• knite

To joint two strings which function will be used.

• strjoin()

• strcat()

• strmet()

• stradd()

im2bw converts_______.

• Grayscale image to black and white

• red green blue to black and white

• YcbCr to black and white

• NSTC to black and white