Community Profile

photo

DGM


Last seen: Today Active since 2015

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. -- I don't reply to email anymore. If you have a question about my questionable FEX submissions, leave a comment on the FEX page and I'll get the notification. Alternatively, ask a question on the forum and @DGM me so I'll get notified.

Statistics

All
  • Thankful Level 4
  • 12 Month Streak
  • Most Accepted 2021
  • Guiding Light
  • 5-Star Galaxy Level 4
  • Revival Level 3
  • Knowledgeable Level 5
  • Explorer
  • First Answer
  • Personal Best Downloads Level 3
  • First Review
  • First Submission

View badges

Content Feed

View by

Answered
webread not returning full html contents
Webread() just reads the page. It doesn't execute all the tons of scripts that are used to build the DOM. https://www.mathwork...

3 days ago | 0

Answered
imshow breaks after changing uiaxes limits
You're specifying that the axes limits should be outside of the image region. currentimage = imread('cameraman.tif'); hi = i...

3 days ago | 0

| accepted

Answered
How can i fill NaN values on unwanted region of an image?
IPT regionfill() can do inpainting based on a logical mask. You could use isnan() to derive the mask from the image. Alterna...

3 days ago | 0

Answered
Openfig+hold on
openfig opens figures hold toggles properties of axes It doesn't make sense to try to put a figure inside an axes. Perhaps yo...

4 days ago | 0

Answered
Welcome... I need code in matlab to enhancement face images, enhancement methods(HE,AHE,CLAHE) and then measure(MSE,PSNR)
Look at the documentation for histeq adapthisteq immse psnr adapthisteq() does CLAHE by default. If you want AHE without...

4 days ago | 0

Answered
Plotted image is clear but saved image is blurry- why?
If you want to retain the crisp edges of the original low-resolution image, you cannot use a continuous interpolant. The defaul...

4 days ago | 1

Answered
Divide an image vertically into two equally luminous parts, ..., calculate the luminance of each part.., PERSONAL NON-FUNDED RESEARCH,
I'm just going to repost this here, since all the cool kids are posting on this one and the other one is closed anyway. :) A = ...

4 days ago | 0

Answered
Divide an image vertically into two equally luminous parts, bisect these two parts, calculate the luminance of each part....
Something like this? A = imread('peppers.png'); A = rgb2gray(A); % BT601 luma A = im2double(A); % split the image into two...

5 days ago | 0

| accepted

Answered
Repair damaged circles and create closed curves
I suppose my solution has a weakness that should've been obvious to me. It fails if it has to do extrapolation to bridge a gap. ...

6 days ago | 0

| accepted

Answered
Can MATLAB do radial enlargements of plots?
You could do this by simply transforming the data itself scale = 2; center = [1 2]; % [x y] r = 1; th = 0:360; x = r*cosd...

6 days ago | 0

| accepted

Answered
creating a video - zoom in effect of still image
You can get a bit better results by not rounding the rect parameter scaling prior to cropping It's not perfect, but it's a b...

6 days ago | 1

Answered
I have tried many different ways of plotting but it won't make a line graph can someone help me out?
You are creating a plot object that contains only one point, but have no specified marker style to indicate those points. There...

6 days ago | 0

Answered
how do i find a set using matrix
Like this? sza = 10; A = randi([1 10],sza) % output will be variable-length % preallocate to maximum length kmax = max(si...

6 days ago | 0

Answered
any ideas for making code faster?
Here. This is about 5x as fast, though it could be improved I'm sure. R = [0.004 0.0057 0.005 0.005 0.0045 0.0044 0.005]; X =...

8 days ago | 0

| accepted

Answered
How to save Histogram of Multiple Images
This should be a start sourcefolder = 'E:\input'; filepattern = fullfile(sourcefolder, '*.png'); % this shouldn't be in the...

8 days ago | 0

| accepted

Answered
Index exceeds the number of array elements in image processing.
Obviously, not all columns of the edgemap will contain nonzero elements, so r will often be zero-length. Also, Graycrop isn't u...

9 days ago | 0

Answered
thermal image processing to get the temprature on each pixel
Image Analyst has a number of examples https://www.mathworks.com/matlabcentral/answers/320467-i-need-to-convert-rgb-image-into...

11 days ago | 0

| accepted

Answered
convert image in matlab
As IA notes, in order to find out how to do a Photoshop task in MATLAB, you figure out how to do it in Photoshop first. Transla...

11 days ago | 0

Answered
Place one image on a blank image but several times i.e (passport style)
If the FG images are simple, solid rectangular images, you can just write a loop and insert each image into the background by di...

11 days ago | 0

Answered
How to blur with a controlled area?
If the user has Image Processing Toolbox, using roifilt2() or even imfilter()/imgaussfilt() could simplify the task. For a smal...

11 days ago | 0

Answered
Fill contour color into the graph
I somehow doubt this is actually what you want, but I'll oblige. % given theta = [80.86 81.36 81.82 82.38 82.98 83.64 84.28 85...

12 days ago | 0

Answered
Save a grayscale image as an colored image
Depending on what you mean when you say you want it to be a colored image, this might have the answer: https://www.mathworks.co...

12 days ago | 0

| accepted

Answered
How to generate a multi-dimensional array from a vector ?
I'm sure there are more elegant ways, but here's this. I'm pretty sure it works. % inputs m = 3; x = [1 2 3 4 5 6 7 8 9]; ...

12 days ago | 0

Answered
MATLAB output is a bunch of numbers with operators not the exact number
To be pedantic, those expressions are the exact result. The decimal values are an approximation. That said, you should be ab...

13 days ago | 0

Answered
this is a part of my code, I am getting this message. "Unable to perform assignment because the indices on the left side are not compatible with the size of the right side."
I'm going to go out on a limb and say that there's no reason to believe that the RHS of this assignment is a scalar. index(i)...

13 days ago | 0

| accepted

Answered
How can i correct brightness of a monochrome image using arithmetic operations?
For basic brightness/contrast controls, see this demo. https://www.mathworks.com/matlabcentral/answers/496452-contrast-vs-brigh...

13 days ago | 0

Answered
How can I combine bit map images to get back the original grey scale image?
Using a bunch of numbered variables forces you into writing unnecessarily repetitive code. This can be simplified. One way wou...

13 days ago | 0

Answered
How to superimpose many images using loop?
Imfuse is a simple tool for visually comparing two images. It has no practical use for processing more than two images. It sho...

13 days ago | 0

Answered
How can I use sliceomatic for 3D plots without getting the below errors?
As far as I know, sliceomatic() has been broken for years. As the error says, 'new' is not a valid option for the 'nextplot' pr...

13 days ago | 0

Answered
Combining images to make a composite image
There are a number of ways to do this. As usual, I'm going to generalize a bit since I doubt OP is the one who will see this an...

14 days ago | 0

Load more