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Jim O'Doherty


Last seen: 5 years ago |  Active since 2011

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Professional Interests: medical image processing, physics, nuclear imaging

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problem with waitbar cancel button
All, I'm encountering a little problem with a cancel button on a waitbar. I can get the Matlab example in the help file to wo...

8 years ago | 2 answers | 0

2

answers

Question


help using dlmread/csvread please
All, I thought this would be an easy one but after 45 minutes of trying I can't seem to read in my .csv file. I've been tryin...

8 years ago | 2 answers | 1

2

answers

Question


Datetick showing too few data labels in a plot
Hi, I've got some data I'm reading into Matlab from a txt file which contains times, which I am plotting in a GUIDE figure. I...

9 years ago | 1 answer | 0

1

answer

Answered
Unix commands in Matlab
I've managed to get some help elsewhere on this issue, thought I'd post here in case anyone else has the same problem. Echo ...

10 years ago | 1

Question


Unix commands in Matlab
Hi, I've installed a series of binaries which appear in usr/local/bin on my MACOSX (They're called DCMTK). The usr/local/bin ...

10 years ago | 1 answer | 1

1

answer

Question


Convolution Integral help please
All, I'm looking to solve the following convolution integral integral from 0 to t of: C0(t'+0.471)*exp(-2.1(t-t')/(0.03...

10 years ago | 0 answers | 0

0

answers

Question


help with plotting 3 data series
Hi, I've got some data like this: data=[1 76 67 76 2 61 53 54 3 63 54 58 4 74 63 72 5 64 67 69 6 50 51 50...

11 years ago | 1 answer | 0

1

answer

Question


Read data from serial device
Hi, I'm trying to read data from a device which constantly spits out data (every second I think). I've found some very good t...

11 years ago | 1 answer | 0

1

answer

Question


Read data from serial device
Hi, I'm trying to read data from a device which constantly spits out data (every second I think). I've found some very good t...

11 years ago | 0 answers | 0

0

answers

Answered
Can I read a single field using DICOMINFO?
Just to post a follow up - I found a way around this using the dicomtoolkit (just google dcmtk). I'm using a Mac This gives y...

11 years ago | 1

| accepted

Question


reading a number from a string
Hi all, I've got a set of strings that are either [1x80] or [1x81], and I'm trying to parse an increasing number from the str...

11 years ago | 3 answers | 0

3

answers

Question


Can I read a single field using DICOMINFO?
Hi all, Ive got a pretty large number of dicom files, and using "dicominfo" for each image is causing my GUI to run extremely...

11 years ago | 3 answers | 0

3

answers

Question


GUI error problem on starting, but no changes to code
Hi, I've been running a fairly complex GUI I created, and it was working fine until I pressed a button while a waitbar was r...

12 years ago | 0 answers | 0

0

answers

Answered
How to determine the position of an integer
Hi Vivekram, I'd sugget using the "unique" command [C, ia, ic]=unique(d) ic will give you the indices of the numbers in...

12 years ago | 0

Question


unique values in array
Hi all, I'm sure this is probably very easy but I can't seem to crack it. I've got an array like so: timing = ...

12 years ago | 1 answer | 0

1

answer

Question


help with impoly error
Hello, I've recently been developing a GUI, which worked fine until Matlab crashed while running an unrelated code. A section...

12 years ago | 0 answers | 0

0

answers

Question


help using Xpath and XML reading
Dear all, I'm recently new to using Matlab to navigate through an XML file, and have a feeling theres a simple answer to my q...

12 years ago | 1 answer | 0

1

answer

Question


cancel a call to impoly
All, I'm manually outlining a series of ROIs on some 3D data, and would like to know how to cancel a call to impoly (i.e. whe...

12 years ago | 0 answers | 0

0

answers

Question


generate 11x11x11 symmetric matrix from 6x6x6 matrix
Hello, I'm slowly going mad trying to accomplish something I feel is actually rather simple. I've got a 6x6x6 matrix whic...

12 years ago | 1 answer | 0

1

answer

Question


regions of interest on 3D dataset
All, I've got some 3D medical data (128x128x128) in a GUI. I'd like to be able to manually draw ROIs on about 25 of the ima...

12 years ago | 1 answer | 0

1

answer

Question


help in making a cumulative histogram, histc or accumarray?
All, I have some data that I would like to create a cumulative histogram of. The bins I would like to use are like bins=...

12 years ago | 2 answers | 0

2

answers

Question


help with reading DICOM
All, I'm reading in a 3D DICOM dataset using the following function. The file is 300 images of 512x512 slices. Each slice is ...

12 years ago | 0 answers | 0

0

answers

Question


Licensing issue with compiled code - am I illegal?
All, I have an academic license of Matlab, and this license is owned by my employer. I have recently written some demonstrati...

12 years ago | 2 answers | 1

2

answers

Question


Contribution from all pixels to 1 pixel
Hello all, I've got a series of 2D image slices, with each pixel being a measure of intensity. I'm looking to work out the co...

12 years ago | 1 answer | 0

1

answer

Question


access to handles structure in WindowButtonDownFcn
Hello, I've got a GUI, and I would like to be able to access the most up to date handles structure in the WindowScrollWheelFc...

13 years ago | 1 answer | 0

1

answer

Question


compiling boundaries into a volume
Hello, I've got a loop that outputs the coordinates of 3 segmented shapes in an image (using bwboundaries), and currently plo...

13 years ago | 0 answers | 0

0

answers

Question


how to remove empty cell array contents?
Hello, I've got a cell array, lets say: R = [ 691x2 double] [] [] [] [] [ 12x2...

13 years ago | 2 answers | 11

2

answers

Question


no access to matlab toolboxes
Hello, My licence attributes for my individual licence says I should have access to the following: Matlab Simulink ...

13 years ago | 1 answer | 0

1

answer

Question


matrix addition
All, I've got a 3-d matrix, sum_total(:,:,i) "i" is in a loop, and can be anything from 20 to 100, therefore making the length...

13 years ago | 1 answer | 0

1

answer

Question


help with montage function
All, I have a stack of images which is 63x64x16 and is a uint16 class. Any idea how I would make a montage using the montage fu...

13 years ago | 1 answer | 0

1

answer

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