DGM
Hi, I'm nobody.
I don't belong here, but I have nothing better to do.
Matlab used to be part of my work.
Now it's part of my hobbies.
That's pretty sad, really.
Statistics
RANK
64
of 242.965
REPUTATION
1.908
CONTRIBUTIONS
23 Questions
700 Answers
ANSWER ACCEPTANCE
60.87%
VOTES RECEIVED
215
RANK
2.066 of 16.987
REPUTATION
777
AVERAGE RATING
5.00
CONTRIBUTIONS
8 Files
DOWNLOADS
57
ALL TIME DOWNLOADS
5210
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Contribute at least one answer each month for 6 consecutive months
Awarded to DGM on 02 Sep 2021
Your submissions received 10 five star ratings
Awarded to DGM on 20 May 2021
Answer 10 questions that were unanswered for more than 30 days
Awarded to DGM on 18 May 2021
100 of your answers have been accepted
Awarded to DGM on 17 Apr 2021
Download any 10 unique submissions
Awarded to DGM on 01 Apr 2021
Accept 5 answers given by other contributors
Awarded to DGM on 31 Mar 2021
Provide your first answer ever to someone else's question
Awarded to DGM on 31 Dec 2020
Your submissions were downloaded 100 or more times in a month
Awarded to DGM on 01 May 2020
Publish your first review
Awarded to DGM on 09 Oct 2019
Publish your first submission
Awarded to DGM on 09 Oct 2019
Content Feed
How to save the required output?
Something like this: %Select image folder A A_dir = uigetdir(); %Select image folder B B_dir = uigetdir(); %Identify file...
1 día ago | 1
| accepted
Unable to convert grayscale images into rgb from a folder.
imwrite() needs numeric/logical data as its primary input. You're feeding it a 3D char array of file paths. Read the file, con...
1 día ago | 0
| accepted
Running a forloop to add text in the black pixels only!
Consider: Str = fileread('adapthisteq.m'); % using this in place of a custom text file x = im2uint8(imread('circles.png')); %...
1 día ago | 0
Construct a 5 x 10 array that contains zeros. Assign elements at (row, column) (3,5), (2,4) and (1, 9) values of 44. Display the matrix.
Consider an altered example: In a 3x5 array, assign a fixed value to elements (3,3), (2,5), and (1,1) sz = [3 5]; % array size...
6 días ago | 0
Techniques for blending images that have overlap
This is a simple approach to doing edge-interpolation. This could also be done using interpolation tools in fewer lines, but ri...
8 días ago | 0
| accepted
No data points appear on the graph when I hit run
When you plot points one at a time, they are rendered as single unconnected points. Since there is no specified marker type, th...
9 días ago | 0
Changing the limit of for loop give different result
Without knowing where fim comes from, I don't know. I'm going to guess that fim is another image imported the same way as the g...
10 días ago | 0
Never ending while-loop
There are a few problems. LW(1) will never match variabel, since they're different lengths. The first 3 characters of LW will ...
11 días ago | 0
| accepted
I am trying to use the "findpeaks" function to find the peak in a set of data.
The documentation for findpeaks explains it better than I could: "The prominence of a peak measures how much the peak stands ou...
12 días ago | 0
why my matlab didn't plot anything?
Start with something like this: m = 85; g = 9.81; ti0 = 0; tf1 = 9; v0 = -20; h = 1; c1 = 11; dv1 = @(g,c1,v,m) g-c1*v/m...
12 días ago | 1
New matrix with only the negative numbers of another one
A = [-1 ; -2 ; 6 ; -4 ; 5 ; 10; -22; 4]; B = A(A<0)
12 días ago | 0
| accepted
How to update title of plot without it "wiggling"
The issue isn't with getting the right number of characters. It's an issue of character spacing. plot(rand(1,10),rand(1,10))...
12 días ago | 0
Find equal pentagonal and square number
This is a rather brute force method, but it still only takes 1.5ms to find the third match on my dumpster PC. n = 1:10000; p...
13 días ago | 2
Audio to Image Conversion
What are n and m? Is either greater than 65500? Should it be? I don't know if using factor() this way is really doing what y...
13 días ago | 0
| accepted
Rescale 8-bit grayscale image
Here's a start: inpict = imread('cameraman.tif'); inrange = [64 126; 127 230]; outrange = [0 120; 151 255]; % you sure you ...
14 días ago | 1
Create a surface from several 1D plots
Something like this: % so you have a vector for x x = linspace(0,1,10); % and a bunch of vectors for z z1 = x.^1; z2 = x.^2...
14 días ago | 0
| accepted
Applying a circular mask to an image
There are other posts about how to composite two images (or an image and a flat BG) https://www.mathworks.com/matlabcentral/ans...
15 días ago | 0
| accepted
Given a matrix of n rows and 2 columns containing the xOy coordinates of n points. Find two points with distance and return the row index of those two points
Consider: n = 10; % number of points d = 7; % distance to match P = 10*rand(n,2); % example point list D = sqrt((P(:,1)-...
15 días ago | 0
Why didn't I find the same answer?
b and B are not the same. They are conjugate. B=-(-1)^(alpha-1)*(1/s^2)^(alpha); In this case (alpha-1) does not equal 0.7. ...
16 días ago | 0
| accepted
Index in position 2 exceeds array bounds (must not exceed 1) ?
Nothing in this code guarantees that the size of b and c are identical to the size of a. If they aren't the same size, you will...
16 días ago | 0
How to fix "error using class. Not enough input arguments"?
You had probably shadowed the function class() with some variable by the same name -- which is something you should avoid. wh...
16 días ago | 0
How do I insert a variable value in legend of a plot?
There are a bunch of examples around. The sidebar shows some. Here are some others: https://www.mathworks.com/matlabcentral/a...
16 días ago | 0
How to apply Gaussian filter with for loop without imnoise?
Replicating the gaussian noise functionality of imnoise() does not require any loops. If someone insists that you need to use l...
18 días ago | 0
| accepted
how to do Image translation
blef. A = im2double(imread('cameraman.tif')); s = imsize(A,3); % nonstandard; see attached file B = zeros([s 4]); for f = ...
20 días ago | 0
Plot multiple rectangles from set of points
Is this what you mean? C = [1 1; 2 4; 3 2]; % center locations [x y] for c = 1:size(C,1) r = 0.5+rand(1,2)*0.5; pl...
22 días ago | 0
| accepted
How to remove contour line in filled contour plot?
Hmm. I didn't think about that. I don't know that it can be done with contourf(). % make a simple linear ramp that cycles [x...
22 días ago | 0
| accepted
for loop/periodic implementation for number or arrays?
If I'm reading this right... Let's say you have an array A: A = randi([-5 110],5,3) % random test array allowedrange = [1 1...
22 días ago | 1
Using bag of words function
If you just want the word frequency table: filename = 'SampleText.txt'; str = fileread(filename); words = regexp(lower(str),'...
22 días ago | 0
Create Matrix using only zeros and ones
How about an example using concatenation only. No arithmetic composition or array indexing. e = ones(2); c = zeros(3,2); n =...
22 días ago | 0
How to read and scan a text file
Attached is an example file: inputfile = fileread('SampleText.txt'); % make sure file exists? Number_of_vowels = vowelcounts...
22 días ago | 1
| accepted
