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Harry


Active since 2013

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Question


Using 'disp' function with variables
I have a line of code which is giving me some trouble and I cant understand why: disp('There is an ice rule violation at...

mer än 11 år ago | 2 answers | 0

2

answers

Question


initialising a color map
How do I create a colormap with n*m pixels which is all white and then display it?

mer än 11 år ago | 2 answers | 0

2

answers

Question


calling a sequence of images for processing
I have a part of my code shown below which allocates the file name of a sequence of images so that it can be read with the imrea...

mer än 11 år ago | 1 answer | 0

1

answer

Question


saving an image using 'imwrite'
I'm trying to save an grayscale image to a file using imagesc(Nv) imwrite(Nv,'C:\Users\bostock_h\Documents\Images\charg...

mer än 11 år ago | 1 answer | 0

1

answer

Question


colormaps. how do they work?
I am trying to assign colours to an n*m matrix N, so I can then display the matrix with red and blue squares with a white backgr...

mer än 11 år ago | 1 answer | 0

1

answer

Question


How do I initialize a n * m colormap matrix
I want to set a blank colormap (preferably all white) at the beginning of my code so elements can be added to it later. Previous...

mer än 11 år ago | 1 answer | 0

1

answer

Question


Finding the dimensions of an image
Is there some way of getting MATLAB to find the pixel dimensions of an image uploaded using the 'imread' command?. Or more simpl...

mer än 11 år ago | 4 answers | 1

4

answers

Question


How do I exit a loop with a key hit?
So I have a loop in my code but I want to exit the loop and move onto the next set of calculations after I hit some key. I know ...

mer än 11 år ago | 4 answers | 0

4

answers

Question


Tracking mouse position on figure
I'm looking for some way of turning a JPEG into a MATLAB figure (which I know how to do). And then be able click on the figure a...

mer än 11 år ago | 2 answers | 0

2

answers

Question


reading images in a file
Is there some way to access many files inside a folder which have names which differ numerically. Something like this: for ...

mer än 11 år ago | 1 answer | 0

1

answer

Question


using testtype to check odd or even numbers
In my code I try to use an 'if' operator to check whether a number is odd or even, so the code knows whether to proceed. So some...

mer än 11 år ago | 1 answer | 0

1

answer

Question


using greater than or less than in 'switch' and 'case' expressions
I don't quite understand how to use the switch and case expressions to calculate when a variable is less than or greater than a ...

mer än 11 år ago | 3 answers | 1

3

answers

Question


How do you initialize an N*M matrix?
From the MATLAB help, it says to use: M = matrix(N, M) but when I apply this it says that the function 'matrix' is not rec...

mer än 11 år ago | 6 answers | 3

6

answers

Question


problem with subscript indices and varibles in functions
If I use the following code: function image_processing_project M = imread('C:\Users\bostock_h\Documents\Images\13051...

mer än 11 år ago | 2 answers | 0

2

answers

Question


Output arguments in functions
In my code I have a some functions with an output argument c which seems to have caused some trouble as the errors are: Er...

mer än 11 år ago | 1 answer | 0

1

answer

Question


error due to function application
When I run the following code it gives the error: Error: File: image_processing_project.m Line: 55 Column: 1 Functio...

mer än 11 år ago | 1 answer | 0

1

answer

Question


How do I turn an image jpg image into a matrix using the 'imread' command? and image analysis
I know that I should use the `imread` command but I don't know how to retrieve an image from a particular file do I have to impo...

mer än 11 år ago | 1 answer | 0

1

answer