# Mara Pereira

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Question

How can I count the pixels in a black and white image?

How can I count the pixels in a black and white image?

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I find a probability of a number sequence in a random number matrix?

How do I find a probability of a number sequence in a random number matrix?

1 year ago | 0 answers | 0

### 0

answersQuestion

How can I make a function that determines the probability of finding specific sequence?

How can I make a function that determines the probability of finding specific sequence?

1 year ago | 0 answers | 0

### 0

answersQuestion

How can I make a function that determines width and length of a bwimage ?

How can I make a function that determines width and length of a bwimage ?

1 year ago | 1 answer | 0

### 1

answerQuestion

How to calculate the area of an input image?

How can I calculate the area of an input image with .jpg extension? If someone could explain please, it´s for a school project. ...

1 year ago | 2 answers | 0

### 2

answersQuestion

How can I change the radius of the spiral so it varies along the length from 0 to 1?

How can I change the radius of the spiral so it varies along the length from 0 to 1? y=0:0.5:100; n=length(y); x=cos(y/100*...

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I turn vertical to horizontal?

>>[X,Y,~]=sphere(21); >>s=sin(0:2*pi/21:2*pi); >>Z=repmat(s',1,22); >>figure(12); >>subplot(1,2,1); >>surf(X,Y,Z); >>alpha...

1 year ago | 1 answer | 0