William Thielicke
Personal website: http://William.Thielicke.org Company website: http://www.Optolution.com Professional Interests: Animal locomotion, flow measurement techniques, micro air vehicles, robotics
Python, MATLAB, Visual Basic
Spoken Languages:
English, French, German
Professional Interests:
Image Processing Toolbox, Image Acquisition Toolbox
Statistics
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1,742
of 300,338
REPUTATION
40
CONTRIBUTIONS
34 Questions
15 Answers
ANSWER ACCEPTANCE
52.94%
VOTES RECEIVED
20
RANK
38 of 20,922
REPUTATION
18,227
AVERAGE RATING
4.90
CONTRIBUTIONS
5 Files
DOWNLOADS
1099
ALL TIME DOWNLOADS
117761
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0 Posts
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Feeds
Submitted
PIVlab - particle image velocimetry (PIV) tool with GUI
Easy to use, GUI based tool to capture, analyze, validate, postprocess, visualize and simulate PIV data. http://PIVlab.de
1 month ago | 1072 downloads |
Determining the install location of a compiled program.
@OCDER: This is the location where the exe file (which seems to act as some sort of shortcut) is located. The actual files of th...
1 month ago | 0
Question
UI scaling changes from latest 2025a prerelease to official 2025a release
Hi, I spent MANY hours to get my GUI running in 2025a - I included many changes to fix all the scaling issues of ui elements. I ...
5 months ago | 1 answer | 0
1
answerHow to pass variable parameters to mcc compiler being run within a script?
There is a function version: mcc(options,mfilename)
10 months ago | 0
Question
parfeval with backgroundpool and ftp and mget
Hi, I want to download a file via ftp, and display the progress during download. This works with websave, but I can't get it to ...
10 months ago | 0 answers | 0
0
answersQuestion
Matlab Compiler: Is "userpath" always there and accessible?
Dear all, my compiled app needs to store some temporary files in the background. Is it safe to assume that the directory given ...
11 months ago | 1 answer | 0
1
answerQuestion
Matlab Compiler Splash screens sizes, aspect ratio
There are two splash screen locations available in Matlab Compiler. One for the App itself, the other for the installer. I can't...
11 months ago | 0 answers | 0
0
answersQuestion
Warning: The next image file directory at byte position 944016033 is at or beyond the end of the file.
When i run the following command: imfinfo('PIVlab_panda_Cam01.tif'); I get the error message from the title. The image file i...
1 year ago | 1 answer | 0
1
answerQuestion
Error handling with graphical user interface
Hi, sometimes, a graphical user interface tool that I published crashes. This tool is often used by people that are new to Matl...
1 year ago | 1 answer | 0
1
answerQuestion
Check code compatibility with older releases
Hi, I am wondering if there is a more or less efficient way to check backwards compatibility. Here is an example: I am using thi...
1 year ago | 2 answers | 0
2
answersQuestion
Finding nice color bar limits automatically
Dear all, I have a plot with a colorbar. The limits of the color bar can't be adjusted automatically, because the plot is a bit ...
2 years ago | 1 answer | 0
1
answerQuestion
ROI with hole, convert back to logical
Hi, I have a task that has probably been asked before, but I do not find something about this issue. I have a binary mask that...
2 years ago | 0 answers | 1
0
answersHow can i edit the points of a saved ROI?
I think I found the solution: figure imshow(imread('baby.jpg')) roi = images.roi.AssistedFreehand(Color="y"); draw(roi) The...
2 years ago | 0
Best way to export image / animation from GUI, including colorbar
I think I am close to a good solution: The function that does all the plotting / imagesc / scatter in the uifigure got an addit...
2 years ago | 0
Question
Best way to export image / animation from GUI, including colorbar
Hi, am am trying to export a graphics file from a uifigure. The plot has several layers and elements, and also features a colorb...
2 years ago | 1 answer | 0
1
answerQuestion
Mac and Linux users, please support me with a very simple task (VideoWriter.getProfiles())
Dear Mac and Linux users, I am currently enhancing a piece of GUI software (PIVlab), and I want to allow the users to select one...
2 years ago | 1 answer | 0
1
answerImage acquisition toolbox: Predict how many imgs can be buffered in RAM?
I found a solution. Here is the function that I use: function [max_possible_images] = PIVlab_capture_max_possible_images(ROI,bi...
2 years ago | 0
| accepted
try...catch for memory full error in imaq toolbox ?
I am getting a bit closer, I am able to display a messagebox with a suitable hint: clc imaqreset delete(imaqfind); %clears al...
2 years ago | 0
Question
try...catch for memory full error in imaq toolbox ?
Hi, I am recording data with an usb3vision camera. I am directly capturing to RAM. After a while, the memory of the computer is...
2 years ago | 4 answers | 0
4
answersQuestion
Image undistortion with fixed camera position and single calibration image
Dear all, I want to undistort an image. The camera is fixed on a tripod. The camera captures the reflected light of particles w...
2 years ago | 2 answers | 0
2
answersQuestion
Image acquisition toolbox: Predict how many imgs can be buffered in RAM?
Hello, I am looking for a way to predict how many frames (approx.) I can capture to the RAM of my computer using the image proc...
3 years ago | 2 answers | 0
2
answersQuestion
Speed improvement of repeated cross-correlation of an "almost same area" ?
Hi, my question is probably more a mathematical one: I am calculating a cross-correlation of two sub-images to determine a disp...
3 years ago | 1 answer | 0
1
answerSubmitted
Keyword occurance in academic papers (google scholar)
This function gets the amount of hits for a specific keyword per year, using google scholar. Inspired by https://zenodo.org/reco...
3 years ago | 2 downloads |
Deblur image that has locally varying (but well known) motion blur
Dear Bjorn, thanks for your reply! I had a look at your code, but I think it will take me some more time to understand if I can ...
3 years ago | 0
Question
Deblur image that has locally varying (but well known) motion blur
Hi, I have an image where motion blur occurs due to long exposure photographing. I know the amount of motion blur for each pixel...
3 years ago | 3 answers | 0
3
answersQuestion
Colorbar range inconsistent in high aspect ratio images
Hi, I am certainly doing sth wrong, but I wonder why Matlab displays different colormap limits when I change the colormap locati...
4 years ago | 1 answer | 0
1
answerHow can I open MATLAB data files in the PIVlab app?
PIVlab sessions can only be opened in PIVlab. If you want to work in MATLAB, you can export the results as mat file from PIVlab....
4 years ago | 0
| accepted
imagesc: how to set NaN as white color
As this is still the first hit when searching on Google... The best solution IMHO: Setting data that is NaN to transparent se...
4 years ago | 7
Submitted
Webcam Realtime Motion Tracker
Example of how to track space-resolved motion in realtime from a webcam video stream.
4 years ago | 9 downloads |
Question
Sudden drop in speed for large matrices. RAM full -> Prevention?
Dear all, I am doing image analyses with a toolbox called "PIVlab". At work, we recently bought a new camera with 25 MP resolut...
4 years ago | 0 answers | 2
