Community Profile

photo

LO


Last seen: 1 day ago
73 total contributions since 2018

LO's Badges

  • 3 Month Streak
  • Knowledgeable Level 2
  • Revival Level 2
  • Thankful Level 2
  • First Answer

View details...

Contributions in
View by

Answered
How can I grab only certain files from a folder?
first create a list of the files, then check which one has the second last digit pair lower than 08, then copy it to a given fol...

1 day ago | 0

| accepted

Answered
Heat maps with 3 variable
you can use the function "scatter3", if you have 3 variables (this will display a scatter plot of x and y and z on the 3rd axis)...

2 days ago | 0

Answered
How to split into small pieces of ranges of this graph?
this plots first the first half then the second subplot 211 plot(x(1:numel(x)/2),y(1:numel(y)/2)) subplot 212 plot(x(numel(...

3 days ago | 0

Answered
Colormap appears darker on another plot, how to change that ?
you could change the colormap of your plot/s by adding (or subtracting) fixed values according to your needs k = 0.01; % factor...

3 days ago | 0

Answered
help with image threshold using bioformats
your threshold values are different among channels so it is not strange for the image to have "false colors". if you think ther...

9 days ago | 0

| accepted

Answered
angle between two lines
FIRST you get the angle between white and blue (it does not matter which angle, the procedure is the same, you just have to adju...

14 days ago | 0

Answered
CSV file reading and applying loop to plot graphs
first import one single CSV file and select coumns and rows of what you want usually to import. Generate the code by clicking t...

14 days ago | 0

Answered
NI-DAQ device working on some PCs but not others
Have you tried uninstalling completely and reinstalling the NI-DAQ Data Acquisition Toolbox ? I have encountered troubles with ...

15 days ago | 0

Answered
How to remove more than K consecutive NaN values from row matrix
K=2; x = [1,2,3,4,NaN,NaN,NaN,7,8,9] ; indexes=strfind(isnan(x), true(1,K+1)); x(indexes)=[]; (edited according to the comme...

15 days ago | 0

Answered
Fit a line on a plot (imagesc)
contrast_line = diff(image); imshow(contrast_line); % shows the line thresholded_image=mean(contrast_line,3) > 240; % set here...

1 month ago | 0

Answered
Issues with plotting/best method
short answer: you are plotting points singularly so you can't see them short solution: pool them together in arrays then use th...

2 months ago | 0

Answered
readFrame is only reading half of of my video frames
it is probably because the frame rate of the video is detected as 15 fps v=VideoReader('crosswalk.mp4'); t=0; while hasFrame(...

2 months ago | 1

| accepted

Answered
moving an image across the screen along some vector path
try using circshift https://de.mathworks.com/help/matlab/ref/circshift.html

2 months ago | 0

Answered
How to segment wbc using k means clustering (I=4)
wbc ? white blood cells ? use regionprops (https://de.mathworks.com/help/images/ref/regionprops.html) on a binary image

2 months ago | 0

Answered
Extract non-touching regions from image
You can try using imerode on the blobs. eroded_image = imerode(binary_image,[1 0 1; 1 0 1; 1 0 1]); % this will "shrink" the im...

2 months ago | 0

Answered
how to plot a contour plot with excel data??
from the folder containing your excel file run the error about Z may be related to the fact that contour is waiting for a missi...

3 months ago | 0

Answered
How to label your peaks in descending order?
something like this ? my guess is that you won't need the sortedX because you are looking for peaks on your Y axis, right ? But...

3 months ago | 0

| accepted

Answered
Frequency response signal - resonce frequency
Based on the info provided I came up with this, you basically have to use the pwelch function and set some sampling rate (which ...

3 months ago | 0

| accepted

Question


losing CData after replotting image in subplot ?
I am making a montage of image panels, which look like BW but are not binary. I am then taking the CData of the montage and , ...

3 months ago | 1 answer | 0

1

answer

Answered
How can I get a loop to process all ".avi" files in a folder, then produce the corresponding ".txt" and ".png" file?
clear; close all; [logfname, pathname] = uigetfile('*.mat','Pick any AVI file'); cd(pathname); %make list of AVI files in t...

3 months ago | 0

Question


control stepper motor using MATLAB and Arduino
I am trying to set up a stepper motor connected to an Arduino Uno with motor shield mounted on it. The motor works through Ardu...

4 months ago | 0 answers | 0

0

answers

Question


change table var type
How can I change the variable type in a table from double to string ? I found plenty of posts with the same issue but during i...

4 months ago | 2 answers | 0

2

answers

Question


can't install NI-DAQmx toolbox on MATLAB 2020b
Just got a fresh new installation of MATLAB 2020b with server license on campus. I am trying to install the Data Acquisition To...

6 months ago | 1 answer | 0

1

answer

Answered
How can i make vector lengths the same?
To solve a similar issue I use imresize First get the size of the image (with the function "size"), then resize image 2 accor...

7 months ago | 0

| accepted

Question


can I have independent analog output and digital counter output in the same session ?
Hi everyone I have a setup with both recording and stimulating electrodes. I would like to record the effects of a certain stim...

7 months ago | 0 answers | 0

0

answers

Answered
How to get pixel index / x,y coordinates of bright regions?
binarize the image, use regionprops, get the PixelList properties and use bwconncomp to identfy separate objects in the selecte...

7 months ago | 0

Question


How to match pixel locations to blob identity with region props
I am using regionprops to identify blobs in a binary image. I am able to detect a couple of blobs, get their centroids and all t...

7 months ago | 1 answer | 0

1

answer

Question


how can I trace a ROI with fixed size on multiple images ?
I am trying to register images from a stack. they are frames taken from a video in which an object is moving. I tried to use the...

10 months ago | 0 answers | 0

0

answers

Answered
How do you send a digital signal as an output to NI DAQ system?
See the properties of your daq by typing its device name in command line. See how the channels are called and which types you ha...

11 months ago | 0

Answered
Matlab crashes every time I copy a (even small) number of blocks to my Simulink model
Are you running Matlab with admin rights? I experienced similar issues when I wasn't. See if it works.

11 months ago | 0

Load more