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Stephen Devlin


Active since 2016

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Question


How to find multiple rectangles in an image
Hi, I have been going through the demo for normxcorr2 and looking for a way to adapt it to find multiple instances of a simil...

6 years ago | 1 answer | 0

1

answer

Question


how to index a 3D image
Hi, I have an RGB tif image (no map) of some color bars (it wouldn't let me upload a tif). It is 77x300x30, each of the color b...

6 years ago | 1 answer | 0

1

answer

Question


How to make a truecolor tif from arrays
Hi, I want to make a tif image, truecolor MxNx3, from arrays. I can see that it is possible to do this where each color is of a...

6 years ago | 1 answer | 0

1

answer

Question


Besides getting the map toolbox where can I get a copy of Boston.tif?
Hi, I have seen some mathworks blogs on how to load large image files into Matlab https://blogs.mathworks.com/steve/2011/08...

6 years ago | 1 answer | 0

1

answer

Question


Problem with table column not being double when workspace identifies it as such
Hi, I import a data table textfile (usually there are several and it is looped) and have had some issues with it, I can overcom...

6 years ago | 1 answer | 0

1

answer

Question


How to save a text annotation on an image photo
Hi, I have an image, I crop it, add some text to the photo, then I want to save that photo into a cell imshow(CroppedImag...

6 years ago | 1 answer | 0

1

answer

Question


Wanting to isolate a number from a string
hi, I have a struct with a list of filenames which I want to extract a piece of data from, the filename is in the format Z...

6 years ago | 1 answer | 0

1

answer

Question


How to have automated thresholding to deal with disparities between images
Hi, I have huge sets of images of some dark circles against a background, the darkness of the background can vary. What I am ...

6 years ago | 1 answer | 0

1

answer

Question


How to combine images horizontally of slightly different heights
Hi, I have a folder of images that I want to stitch together horizontally (it would be nice to know how to do it vertically too...

6 years ago | 1 answer | 0

1

answer

Question


Matlab text file opts varying for similar files
Hi, I have 2 text files with the same amount of columns/headers, when a measurement is not completed it fills in the field with...

6 years ago | 1 answer | 0

1

answer

Question


How to access a table using the string from within a cell as part of the dot notation index
Hi, I have thousands of textiles that over the years have been formatted differently, for example velocity data may be in colum...

6 years ago | 1 answer | 0

1

answer

Answered
can we combine more than one marker for a same point?
Would it be better to show this in a 3D plot?

6 years ago | 0

Answered
Lists in matlab to store iterative data.
I store dynamically generated data in cell arrays or tables all the time, can you show some of your code/data?

6 years ago | 1

Answered
Is it possible to automatic find threshold value?
Hi Tarcisio, Maybe this helps? https://uk.mathworks.com/matlabcentral/answers/73864-histogram-thresholding-to-get-the-thre...

6 years ago | 0

Answered
How can i convert hex data as a text file to Viewable image(JPEG) in matlab
Have you tried this from File Exchange? https://uk.mathworks.com/matlabcentral/fileexchange/34713-imagetohex--hextoimage-ccon...

6 years ago | 0

| accepted

Question


windows and mac differences in basic functionality readtable
Hi, I have a gui that runs perfectly fine on a Mac with 2017a, when I run it on win2017a (prior to compiling it) I get numero...

6 years ago | 1 answer | 0

1

answer

Question


Handling header name variation
Hi, When I import a textfile using readable I have various column headers, one called "myheader1", but it could also be "my...

6 years ago | 1 answer | 0

1

answer

Answered
How to change fontsize in the report generator explorer?
Hi, Here's an example of how I change fantasize in a table using the report generator. t3=TableOutForPPoint;%this takes ...

6 years ago | 0

Answered
Out of Memory Error Message
Two things I can think of. 1. Alter your Java heap size To adjust the Java heap size: On the Home tab, in the Environme...

6 years ago | 0

| accepted

Question


How to speed up plotting from within a loop
Hi, I have a figure which I want to plot all my data to, and am doing in it a loop, it works but is inordinately slow and I thi...

6 years ago | 1 answer | 0

1

answer

Question


Can I have the improfile intensity graph added to subplot
Hi, I have an image I use improfile to give a plot of the intensity across an image using mouse clicks, is there a way to add t...

6 years ago | 1 answer | 0

1

answer

Question


saving a processed image of the same size as the original for comparison
I have an image (tif) which I import into Matlab, this becomes my reference.I draw a white line on it and save with the line on,...

6 years ago | 1 answer | 0

1

answer

Question


how to rotate an array about the best fit line
Hi, I have some data taken from analysing circles in an image and want to be able to straighten the line as its being on a sl...

6 years ago | 2 answers | 0

2

answers

Question


confusion for how to use switch with multiple inputs
Hi, I have a gui which has two popup windows to identify which type of data is being used. Each of the two data types comes...

6 years ago | 1 answer | 0

1

answer

Solved


Add two numbers
Given a and b, return the sum a+b in c.

6 years ago

Question


What happened to allfitdist ?
Hi all, Allfitdist has been removed from file exchange, does anyone know of a way to find the best fitting distribution program...

6 years ago | 1 answer | 7

1

answer

Question


generating an equispaced vector using a variable
Hi, I have a variable that I want to use to make each variable in part of a vector equi-spaced, and I cannot figure out why it ...

6 years ago | 1 answer | 0

1

answer

Question


how to find points between boundaries
Hi, I have a text file of data points taken from the coordinates of a point at time t and time t+10us, from this I can derive v...

6 years ago | 1 answer | 0

1

answer

Question


How to make data random around a given point and within a particular range
Hi, I am trying to write a table with some fake data and need it to compare to a checking vector(A(:,2)). In the checking vecto...

6 years ago | 1 answer | 0

1

answer

Question


problem using setdiff to check if a vector is present in a loop
Hi, I have a problem with some code I have written and hope someone has a pointer or two. The issue is with the variable "m...

7 years ago | 1 answer | 0

1

answer

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