Julius Muschaweck

JMO GmbH

Last seen: 10 dagen ago | Active since 2021

Followers: 1 Following: 0

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I'm a freelance physicist, specializing in illumination optics. I am an experienced optical design expert, and I teach courses on illumination optics. For more: https://www.jmoptics.de

Programming Languages:
C++, MATLAB, Visual Basic
Spoken Languages:
English, German

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JMO_Spectrum
Create, add, multiply spectrum arrays, compute color coordinates, CRI and much more.

19 dagen ago | 6 downloads |

5.0 / 5

Answered
Is it possible to just set the lower limit of the y-axis?
Two related ways I'm aware of (besides computing the max, which may be tedious with multiple plotted lines). xx = linspace(0,2*...

meer dan een jaar ago | 1

| accepted

Answered
Matlab display images oriented by 180.
Here: https://magnushoff.com/articles/jpeg-orientation/ is a nice and comprehensive explanation of the orientation tag values. I...

ongeveer 3 jaar ago | 1

Answered
How to compute uv coordinates for an arbitrary quad?
With A == [Ax, Ay], etc, and a point P == [Px,Py] for certain u,v, the first step is indeed to subtract A from B, C, D and P, ef...

ongeveer 3 jaar ago | 0

Answered
Unrecognized function or variable "Run Python script file from MATLAB"
In my Matlab 2021a, I get the same error message. In the online documentation, it says "Introduced in R2021b". It seems you're...

bijna 4 jaar ago | 0

| accepted

Answered
What should be the distance between the two cameras?
With a stereo vision camera pair, intended to create pairs of images for 3D vision, the key quantity is the "stereo angle": The ...

ongeveer 4 jaar ago | 1

Answered
Extracting positive and negative element of a matrix?
Use logical indexing: A = rand(10,10, 10) - 0.5; % contains random numbers in [-0.5, 0.5] B = zeros(10, 10, 10); % prealloca...

ongeveer 4 jaar ago | 0

| accepted

Answered
AUC between different size curves
I would use interp1 to interpolate both functions so they have the same high resolution x support. You can easily replace the 0....

ongeveer 4 jaar ago | 0

| accepted

Answered
angular data spline interpolation
Your x has five values, your y has seven values. This is a mismatch. I think you should use y = [0 1 0 -1 0; 1 0 -...

ongeveer 4 jaar ago | 0

| accepted

Answered
Using fprintf to save a matrix changes the order of my matrix
Your matrix does not change. You are outputting the values in your matrix, six numbers per line, as it is stored internally. And...

meer dan 4 jaar ago | 0

Answered
Extract variables from a text data and add them to an array to plot a graph
Inspired by https://uk.mathworks.com/matlabcentral/fileexchange/17177-ini2struct Your example input is attached as SomeNameValu...

meer dan 4 jaar ago | 0

Answered
Extract data between thresholds
I believe logical indexing and the diff function are what you need. % create and plot something like your data x = 0:300; % so...

meer dan 4 jaar ago | 0

Answered
Importing 3 spectrum data, plot representative spectrum for each sample all in same figure
It's hard to reproduce what you did without the jpeg files. But, maybe hold on is what you need: figure(); plot([1 2],[1 2])...

meer dan 4 jaar ago | 0

Answered
clear a MATLAB function after an episode
Assuming your function has the name f, you can use clear f; to clear persistent variables within f. Like here: function f() ...

meer dan 4 jaar ago | 0

Answered
How to add a little white space around the figures by using "print" command?
A simple plot as an example: figure() plot([1 2], [1 2]); set(gcf,'position',[400, 200, 560, 315],'PaperOrientation', 'landsc...

meer dan 4 jaar ago | 0

| accepted

Answered
Finding position of value in an array
clear all; close all; clc; y = [-3.2628 -2.4774 -1.6920 -0.9066 -0.1212 0.6642 1.4496 2.2350 3.0204]; x=-2...

meer dan 4 jaar ago | 1

Answered
Creating a function with equation as an input
Your "equation" seems to be a function depending on p, p1, q, q1. I would use an anonymous function to model this behavior. An...

meer dan 4 jaar ago | 0