2nd Matlab MCQ paper

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2nd Matlab MCQ paper

Name

When loading an image, Imread() function return :

What does the following command do (assuming img is stands for a correct image) ?
min(min(img))

Which statement(s) is/are correct if you want to assign a value of 1 to all colors components of all pixels of an image ? (we assume that color depth has three components : R G B)

if A and B are matrices of different dimensions.
What does produce A.*B ?

'ech' is a vector of 100 000 values, and 'y' is defined as : y=sin(2pi1000*ech);
how can we plot y Vs. ech

ech = 0:1/100000:0.02;
y1 = sin(2pi1000*ech);
If we use rand() function to apply some noise effect to y1, what do we have to write ?

2nd Matlab MCQ paper

Name

When loading an image, Imread() function return :

What does the following command do (assuming img is stands for a correct image) ?min(min(img))

Which statement(s) is/are correct if you want to assign a value of 1 to all colors components of all pixels of an image ? (we assume that color depth has three components : R G B)

if A and B are matrices of different dimensions.What does produce A.*B ?

'ech' is a vector of 100 000 values, and 'y' is defined as : y=sin(2*pi*1000*ech);how can we plot y Vs. ech

ech = 0:1/100000:0.02;y1 = sin(2*pi*1000*ech);If we use rand() function to apply some noise effect to y1, what do we have to write ?

What does the following command do (assuming img is stands for a correct image) ?
min(min(img))

if A and B are matrices of different dimensions.
What does produce A.*B ?

'ech' is a vector of 100 000 values, and 'y' is defined as : y=sin(2pi1000*ech);
how can we plot y Vs. ech

ech = 0:1/100000:0.02;
y1 = sin(2pi1000*ech);
If we use rand() function to apply some noise effect to y1, what do we have to write ?