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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.

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Answered
Increase plot speed in MATLAB
I think Yair's comment is probably a good start, though perhaps the significance of certain parts have changed over time: https...

1 day ago | 0

Answered
Why is my diverging colormap not centered as expected?
The problem is caused by when you call crameri(). Remember that a color table is just an ordered progression of color tuples. ...

6 days ago | 0

| accepted

Answered
Isolating objects detected in a binary image
You can use the 'image' property from regionprops() to avoid a lot of hassle here. % a logical image with two blobs whose bound...

6 days ago | 1

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Answered
How to solve a problem with the generation of multiple-colored segments on one line in Matlab plot
Yeah, you're going to have problems trying to create a bunch of line objects for all the segments. You'll probably have a bette...

9 days ago | 0

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Answered
Removing unessecary background/ details from the Image
Talk about a trick question. If the attached file were a JPG, you would need to go back to the source in order to get undamaged...

9 days ago | 1

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Answered
How toimage regional analysis
If all you're trying to do is select red regions with a mask: rgbimg = imread('peppers.png'); hsvimg = rgb2hsv(rgbimg); hue...

10 days ago | 0

Answered
Saving concatenated/ stitched elongated image file in high resolution
Do not save images by taking screenshots of figures. No saveas(), no print(), no exportgraphics(). The result is a degraded, pa...

11 days ago | 1

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Answered
Non-rectangular thermal image crop & matching
There are two CSV files. One is readable. The other is a duplicate with broken formatting. It should have simply been deleted...

14 days ago | 0

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Answered
How can I force an image to render on the entire axes of a figure?
There are various proposed solutions that I can't remember entirely. If I recall, many don't work consistently across different...

14 days ago | 0

Answered
Apply colormap coloring to a particular contour to indicate imaginary component
It can be done, but not with contour() or plot(). % some fake data x = linspace(-1,1,100); y = x.'; z = x.*y + sqrt(x) - sqr...

20 days ago | 3

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Answered
iterating array over for loop
Two things. 1: you're breaking out of the loop immediately by using the break keyword. 2: you're not addressing the output as ...

24 days ago | 0

Answered
Image Selection in freeform
Use drawfreehand() to create an ROI object interactively. Once done, use createMask() to convert the ROI object into a logical ...

24 days ago | 1

Answered
Randomly position an ellipse and create a cutout
Depending on what you mean by "crop", this may suffice: https://www.mathworks.com/matlabcentral/answers/314089-how-can-i-apply-...

28 days ago | 0

Answered
Image processing for determining endpoints on a line
bwskel() will almost always leave branches on the skeleton. You have to get rid of them. While you can use the minbranchlength...

1 month ago | 1

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Answered
remove data from fig file after plotting
xlim([17.38 33]) % ?? What's that have to do with "removing data after plotting" though?

1 month ago | 0

Answered
which colormap I can chose to draw these figures?
Attached are colormap generators that attempts to make something close to the given colormaps. It's only a blind approximation,...

1 month ago | 0

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Answered
Using Tiff function to save tiff files
There are at least two ways of doing this. You can try to just cram everything into a single image. As far as I can tell, I ...

1 month ago | 1

Answered
How do I remove the Specular reflections in gray scale image as given in this article snippet?
Well forget about trying to use imregionalmax() on that. It looks like a captured frame of interlaced video that's been saved a...

1 month ago | 0

Answered
How do I extract data from the graph in this image?
The more I look at this graph, the worse it gets. At least it's a clean PNG, but it's small for what's represented, and there a...

2 months ago | 1

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Answered
Is there a way to make my picture RGB again? Trying to test hamming code
Well, here's one example. It might not be the most practical sort of thing, but it's probably fairly instructive. I imagine th...

2 months ago | 0

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Answered
Is it possible to create a 3-D surface plot with black edges and color shading on the faces that corresponds to the data points, instead of solid color faces?
Simply do: sa.FaceColor = 'interp'; That will make the face color graduated, while leaving the edge lines black.

2 months ago | 0

Answered
How to recify this error in daughman's rubber sheet model matlab code? : Error using * MTIMES (*) is not fully supported for integer classes.
Well, I have no idea how you're calling this function, but the parameters you're passing are integer-class, when they shouldn't ...

2 months ago | 0

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Answered
how to overlay these two data sets in one image with two different colorbars?
I'm going to just put both colorbars on one side so that they don't get in the way of axis labels. It's just easier. load('lol...

2 months ago | 0

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Answered
What do I need to do when I get this message "Cannot display summaries of variables with more than 524288 elements." ?
What you do depends on what the array is and what exactly you're trying to look at. The browser doesn't support display of larg...

2 months ago | 0

Answered
error while using imfilter function in matlab
The name of the filter variable is "filter", not "filt". result{i} = imfilter(temp_img, filt, 'replicate', 'conv'); filt() i...

2 months ago | 0

Answered
Why the error?
The error is (almost) entirely a consequence of the difference in the way you're handling the region boundaries. When the image...

2 months ago | 2

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Answered
convert RGB to YIQ and HSV values without function rgb2ntsc and rgb2hsv ([30,80,30]) search with matlab coding
First off, you're asking for something you can't get. https://www.mathworks.com/matlabcentral/answers/38787-what-can-be-program...

2 months ago | 0

Answered
Unable to perform assignment because the size of the left side is 588-by-3603 and the size of the right side is 588-by-719-by-3 error
The actual solution is probably to delete AreaUnderCurve() and actually pay attention to what you're doing with your data. Wh...

2 months ago | 1

Answered
mapping image using pixel values
This question is one in a long set of unclear questions which together likely form an XY problem. This is a rough summary of a ...

2 months ago | 0

Answered
Matlab code of shape
So the inputs are: the chord length L (they're all equal) one of the interior angle pairs I choose to assume that the given a...

2 months ago | 0

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