Professional Interests: Image processing, Matlab

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

6 years ago

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

6 years ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

6 years ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

6 years ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

6 years ago

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Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

6 years ago

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Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

6 years ago

Answered

Distance between 2 points in an image.

You could be more specific but.. The simplest case might be to just use the Data Cursor. It's in the toolbar already.. Click...

Distance between 2 points in an image.

You could be more specific but.. The simplest case might be to just use the Data Cursor. It's in the toolbar already.. Click...

6 years ago | 0

Answered

How to display X-tick labels vertically using GPLOT?

Not sure if this solution fit your data - but if you know how to set the 'XTicksLabelStyle' within the plot function, why not do...

How to display X-tick labels vertically using GPLOT?

Not sure if this solution fit your data - but if you know how to set the 'XTicksLabelStyle' within the plot function, why not do...

6 years ago | 1

| accepted

Answered

How to make smooth surface across U-shaped object

I can add for future reference that I solved it by correcting a bug from the code above. The variable tri should have been ...

How to make smooth surface across U-shaped object

I can add for future reference that I solved it by correcting a bug from the code above. The variable tri should have been ...

7 years ago | 0

| accepted

Question

How to make smooth surface across U-shaped object

Hi! I have a set of data, say z(x,y), that could simply be thought of as a "U" shape in the (x,y)-plane, extended in the z-pl...

7 years ago | 1 answer | 0

Question

Fetch Data Cursor on figure update

Hi. I've re-directed the Data Cursor callback to my own function. In there I like to re-draw a figure given new x,y-values ...

7 years ago | 0 answers | 0

Answered

how to get processed image at another location than MATLAB figure window

doc imrwrite

how to get processed image at another location than MATLAB figure window

doc imrwrite

7 years ago | 0

Answered

how can select a region in image?

Sounds like you want the function imfreehand. Steve has posted about this befor, see e.g. <http://blogs.mathworks.com/steve/...

how can select a region in image?

Sounds like you want the function imfreehand. Steve has posted about this befor, see e.g. <http://blogs.mathworks.com/steve/...

7 years ago | 0

Answered

I face the error "Too many input arguments." Please help me

Well, those lines looks fine to me. It's probably other line's who's raising the error.

I face the error "Too many input arguments." Please help me

Well, those lines looks fine to me. It's probably other line's who's raising the error.

7 years ago | 0

Answered

How to graph ln(x^2)=0.7?

Well, to plot the point f(x)= 0.7, I guess you would need to use a solver, e.g. ode45. To just plot the function, you first ...

How to graph ln(x^2)=0.7?

Well, to plot the point f(x)= 0.7, I guess you would need to use a solver, e.g. ode45. To just plot the function, you first ...

7 years ago | 0

Answered

How to convert dataset variables from cell?

If I understand your data correct, then it's more a question of how you acces the data, than how to convert the data. For instan...

How to convert dataset variables from cell?

If I understand your data correct, then it's more a question of how you acces the data, than how to convert the data. For instan...

7 years ago | 0

Question

Multiple plot handles to the same figure

Hi, I have two handles created with something like, hTri= trimesh(); hFill= fill3(); where two figures act as paren...

7 years ago | 2 answers | 0

Answered

*why* easter egg in MATLAB

This is quite the ugly solution but. Open a script, paste diary('whyText.txt') for i= 1: 10 why end ...

*why* easter egg in MATLAB

This is quite the ugly solution but. Open a script, paste diary('whyText.txt') for i= 1: 10 why end ...

7 years ago | 0

Answered

remove rows from a matrix on a specific condition

Try A= [ 5 3 3 1 4; 6 6 3 1 0; 6 2 2 2 0; 4 2 3 2 0; 1 1 1 1 2 ] A(A(:, 5)== 0, :)= []

remove rows from a matrix on a specific condition

Try A= [ 5 3 3 1 4; 6 6 3 1 0; 6 2 2 2 0; 4 2 3 2 0; 1 1 1 1 2 ] A(A(:, 5)== 0, :)= []

7 years ago | 5

| accepted

Question

Set x, y, z data in trimesh without re-plotting

Hi there, I'm working on a function that plots a set of data continuously during mouse press. I draw the data with (in short)...

7 years ago | 0 answers | 0

Question

Eliminating outer for-loop

Hi, I have an outer for-loop that I can't manage to get rid of. Code as follows for t= 1: epochs ... code ...

7 years ago | 1 answer | 0

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Poker Series 11: selectBestHand

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 10: bestHand

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 09: IsHighCard

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 08: IsPair

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 07: IsTwoPair

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 06: isThreeKind

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago

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Poker Series 05: isStraight

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

7 years ago