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DGM


Last seen: Today Active since 2015

Followers: 6   Following: 0

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.

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  • 36 Month Streak
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  • Most Accepted 2022
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  • Most Accepted 2021
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  • Knowledgeable Level 5

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Answered
please explain the function of each command used in this code. These commands are part of allan variance code.
zeros() numel() sum() sqrt() https://www.mathworks.com/help/matlab/matlab_prog/matlab-operators-and-special-characters.html ...

8 days ago | 1

Answered
Fill confidence band hexadecimal color
Didn't recall that working either. X = [0 0 1 1]; Y = [0 1 1 0]; fill(X,Y,'','facecolor','#7E2F8E');

8 days ago | 0

Answered
How to calculate standard deviation from ROI of image after thresholding?
You have the pixel values, so you can just use those. % a grayscale image inpict = imread('cameraman.tif'); % an antialiase...

8 days ago | 0

Answered
How can i change the font size of XTick and YTick (x axis and y axis) in histogram of a image?
Other than manual editing, none of these answers work as simply as suggested. The reason is that imhist() creates two axes obje...

8 days ago | 0

Answered
A problem in using imhist to display histogram of indexed image
This is a bug that's been part of imhist() for a very long time. When fed an integer-class indexed image, the colorbar will be ...

8 days ago | 0

Answered
Make only the highest values of grayscale image transparent
I'm going to assume that the goal is to combine two images of the same page geometry and then save the result. If the end goal ...

13 days ago | 0

Answered
Matrix of fading colors
Loops aren't needed. % don't embed parameters into the code outsize = [256 256]; % [y x] % i'm assuming we live prior to R2...

18 days ago | 0

Answered
Reading image into 16 bit signed int
There's no elegant and succinct way of doing this with base tools alone, considering that you'll potentially need to support mul...

18 days ago | 0

Answered
how to convert a monochrome image of depth 24 bits into a monochrome image of depth 8 bits ?
Here's a more comprehensive example which should handle both unsigned and signed integers. Attached are two demo images. One i...

18 days ago | 0

Answered
How can I save a 32 bit image (uint32) as a tiff?
Here's a simple demo that should demonstrate writing odd numeric classes to a TIFF. This supports 8,16, and 32 bit signed and u...

18 days ago | 0

Answered
Normalizing by means of zero-mean
I'm going to stick this here and close the duplicate threads. What's missing from this form of the question is that the input i...

18 days ago | 0

Answered
How to find a polygon in an image
This is largely assembled from existing examples. I'm sure we can find a way to break it, but this image is pretty forgiving. ...

19 days ago | 0

Answered
Imfuse 'blend' issues
Like most cases, I don't see the point of using imfuse() here. If you're treating the images as if they're binarized, make sure...

19 days ago | 0

Answered
Bluewhitered function in tiledlayout environment
Unlike other map generators, bluewhitered() depends on the caxis of the current axes. You need to generate the map after you se...

19 days ago | 1

| accepted

Answered
How can i change ppm image resolution when I using Imread?
Good gravy. I finally figured out what you're doing. You're writing your PPM files using 'maxvalue' set to 1023. This is wh...

19 days ago | 2

| accepted

Answered
error
We know the following: You get a warning that a specific user-created (or downloaded) filename is preventing the use of a built...

20 days ago | 0

Answered
how to get the pixel value of histogram?
You have the bin values. You know which bins you want. Why are you zeroing the histogram counts instead of changing the image?...

20 days ago | 0

Answered
Make an image darker with overlay of another image
If your images are in standard scale (i.e. correctly scaled for their class), then I don't see why you'd be using imagesc() to d...

20 days ago | 0

Answered
Coor image enhancement in spatial domain
"Enhance" is shorthand for "read my mind and do whatever it is that I want but haven't spent enough thought to formally conceive...

20 days ago | 0

Answered
Drag histogram to adjust contrast
You're asking for a graphical image adjustment tool while simultaneously asserting that you can't use the extant ones because yo...

20 days ago | 0

Answered
Poor imshow image quality
The image is being drawn into a TiledLayout with the default wide padding and tile spacing. A ton of space is being wasted. ...

21 days ago | 0

Question


How to report/flag a user or a ThingSpeak channel?
When I find spammers, I often tend to check their profile to see what else needs cleaned up. Occasionally there are accounts li...

21 days ago | 1 answer | 0

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answer

Answered
finding 4 neighbor of pixel in grayscale image.
Disregarding edges, the 4-neighbors of a pixel IM(y,x) are obviously %IM(y,x+[-1 1]) % horizontally-adjacent pair %IM(y+[-1 1]...

22 days ago | 0

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Answered
Input is a valid integer
Assuming the input x is a char vector from input() which represents a numeric scalar: isvalidnumber('56') % positive scalar int...

24 days ago | 0

Answered
Unequal, custom, non-evenly spaced colorbar intervals
It can be done, but it's annoying to do. A lot of people take shortcuts and represent nonuniform intervals with uniform colorba...

26 days ago | 0

Answered
How can one use a variable to set color of a line plot , and use colorbar?
Here's a simpler way to do it using patch(). % the data as given load koordmean load anx % the coordinate data x = koor...

28 days ago | 0

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Answered
how to use drawcircle methods with centroids array from bwconncomp
You're repeatedly overwriting h before you do anything with it. It's not clear what you expect to happen. If you just want the...

28 days ago | 0

| accepted

Answered
how to plot the data over an image of graph to validate the data?
You can plot things over an image, but good luck guessing whether or not your image features actually line up with the coordinat...

30 days ago | 1

| accepted

Answered
why file did not appear
Maybe it has something to do with that big red error because you created an invalid file name.

1 month ago | 1

Answered
how to get Integrated circuit pads in image?
This is not robust or applicable to other images or types of packages % read the image inpict = imread('https://www.mathworks....

1 month ago | 0

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