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if the camera is static, take a blank image and subtract it from the live feed to get a rough idea of what pixel values have cha...

2

Answered 3 years ago

if I try to plot the following: plot(0.5,0.5) Is there any way to specify what handle the object will have while using ...

2 Answers

0

Asked 3 years ago

Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

Solve this!

1

3 years ago

So, I noticed that you can't cntr + c out of the sound playback from soundsc. Is there a way to kill the horrible noises I'm mak...

1 Answers

let's say i have the image: img = [1 0 -1; 0 -1 0; 1 1 -1]; and I'd like to get the values on the 8-connected...

I have a vector of enemy handles so that I can assign visibility to certain enemies and not others, but once I update all of the...

3 Answers

go = true; while go step1 step2 step3 if step3==stopcriteria go=false end ...

accepted

make a structured variable for t=1:n^2 V(t).matrix=zeros(n); end Call them by V(t).matrix and get spec...

I agree with Image Analyst. Is your image a jpg or has it been compressed? If so, there are little ghosts that lurk as low inten...

plot(C,A) you can plot anything against anything else. If A and C correspond to the same values of B then the above code sh...

im2col(a,[64 64],'distinct') will give you your blocks as columns that you just need to reshape into squares again. I can't h...

I made a script which uses set(gca,'property','value','property2','value2') and changes the default plot to look nicer. ...

it makes it '3d'

what if you did this: matrix = [matrix; (button input)]; so m = [1 2 3] would go to m = [1 2 3; 4 5 6] with [4 5 6...

if your image is 'a', try a(a>threshold)=0; or try max(a,threshold); which makes the values equal to your thre...

I'm kind of confused here. you have a 3d plot with 2-d data? can you just set the third vector as zeros and use hold to plot it ...

I find it easier to write separate functions and then just call them as needed with some big script or function instead of copy ...

that used to happen to me when running scripts, so I switched to only using functions to get graphs and it went away. why? I don...

Given the dimensions of a 2-d plane, create a matrix where a "snake" of ones occupies the plane from top left to bottom right. ...

is there a nice way to get the line of sight from one pixel to the remaining pixels in an image? like if I had a binary image of...

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

2 years ago

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

Picture a chessboard populated with a number of queens (i.e. pieces that can move like a queen in chess). The board is a matrix,...

Given a matrix A that represents the state of <http://en.wikipedia.org/wiki/Conway's_Game_of_Life Conway's game of Life> at one ...

List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

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