Answered

how to recoup a watermark image !

Try this. mat = imread('cameraman.tif'); % host image watermark = imread('cameraman.tif'); % payload image B2 = im2bw(water...

how to recoup a watermark image !

Try this. mat = imread('cameraman.tif'); % host image watermark = imread('cameraman.tif'); % payload image B2 = im2bw(water...

20 dagen ago | 1

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Answered

How to edit the font size and font name of y-labels while using the toolbox of addaxis?

It seems addaxis() is a bit in need of maintenance. The object handles are supposed to be stored in the userdata of the main ax...

How to edit the font size and font name of y-labels while using the toolbox of addaxis?

It seems addaxis() is a bit in need of maintenance. The object handles are supposed to be stored in the userdata of the main ax...

20 dagen ago | 0

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Answered

Someone knows why this is happening? and it work a few days ago

You have a script called polar.m which is shadowing the builtin function polar(). Change the name of that script.

Someone knows why this is happening? and it work a few days ago

You have a script called polar.m which is shadowing the builtin function polar(). Change the name of that script.

20 dagen ago | 1

| accepted

Answered

Save/Crop Figure (bmp) file without background

If you have a raster image displayed in a figure, don't save it from the figure. Use imwrite(). Doing this: A = imread('camer...

Save/Crop Figure (bmp) file without background

If you have a raster image displayed in a figure, don't save it from the figure. Use imwrite(). Doing this: A = imread('camer...

20 dagen ago | 1

| accepted

Answered

how can i bring 2 figures together?

If you look, the two x vectors are not the same. They differ in length by 1. You can reuse the latter x if you want. Either w...

how can i bring 2 figures together?

If you look, the two x vectors are not the same. They differ in length by 1. You can reuse the latter x if you want. Either w...

20 dagen ago | 1

| accepted

Answered

RIO iteratively to create mask

This is a start im = imread("coloredChips.png"); numROI = 6; % create ROI objects and adjust them imshow(im); for k = 1:n...

RIO iteratively to create mask

This is a start im = imread("coloredChips.png"); numROI = 6; % create ROI objects and adjust them imshow(im); for k = 1:n...

21 dagen ago | 0

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Answered

How to project and fit a 2D path onto a 3D surface?

Something like N = 1000; nturns = 10; rmax = pi; zscale = 0.1; zoffset = 0.5; r = linspace(0,rmax,N); th = linspace(0,n...

How to project and fit a 2D path onto a 3D surface?

Something like N = 1000; nturns = 10; rmax = pi; zscale = 0.1; zoffset = 0.5; r = linspace(0,rmax,N); th = linspace(0,n...

21 dagen ago | 0

Answered

how can we increase a value until we get answer

This can be simplified, but let's start with the given approach. format long alpha = [510; 310; 78; 120; 350; 490; 53; 150...

how can we increase a value until we get answer

This can be simplified, but let's start with the given approach. format long alpha = [510; 310; 78; 120; 350; 490; 53; 150...

21 dagen ago | 1

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Answered

How to read jpg in format CMYK?

If imread() can't read CMYK JPG files (as most things can't), then you'll obviously have to use something else to convert the im...

How to read jpg in format CMYK?

If imread() can't read CMYK JPG files (as most things can't), then you'll obviously have to use something else to convert the im...

21 dagen ago | 0

Answered

How to extract data from a particular column of matrix?

Something like this should work: Y = A(20:3500,6);

How to extract data from a particular column of matrix?

Something like this should work: Y = A(20:3500,6);

22 dagen ago | 0

Answered

How can I multiply 2 signals?

Something like x = (-1 :.05 :1); % pay attention to scale and limits y = cos(2*pi*x).*exp(-5*x); % elementwise multiply with ....

How can I multiply 2 signals?

Something like x = (-1 :.05 :1); % pay attention to scale and limits y = cos(2*pi*x).*exp(-5*x); % elementwise multiply with ....

23 dagen ago | 1

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Answered

How to remove narrow cavities and passages in a binary image

Simple morphological operations should suffice. Morphological closing removes background (zero-valued) features smaller than a ...

How to remove narrow cavities and passages in a binary image

Simple morphological operations should suffice. Morphological closing removes background (zero-valued) features smaller than a ...

24 dagen ago | 2

Answered

How to do a cycle in the graph each time of plot

You can use mod() and simple masking to avoid the loop and conditional. K_t = 750; K_r = 250; b = 5; f_z = 0.1; theta =...

How to do a cycle in the graph each time of plot

You can use mod() and simple masking to avoid the loop and conditional. K_t = 750; K_r = 250; b = 5; f_z = 0.1; theta =...

24 dagen ago | 1

Answered

How can I transform 'line' in Binary Image to function like y=x ? How can i find coordinates of line?

Raster Image Processing You can do this by just processing the raster image as has been already described, but you'll have to d...

How can I transform 'line' in Binary Image to function like y=x ? How can i find coordinates of line?

Raster Image Processing You can do this by just processing the raster image as has been already described, but you'll have to d...

24 dagen ago | 0

Answered

How can I iterate across the opposite diagonal?

You can also do: HM = fliplr(toeplitz([6 4 zeros(1,7)])) That said, it's unclear whether you're actually intending for the out...

How can I iterate across the opposite diagonal?

You can also do: HM = fliplr(toeplitz([6 4 zeros(1,7)])) That said, it's unclear whether you're actually intending for the out...

24 dagen ago | 0

Answered

Create a plot with 2 left axes and 1 right axis

I don't know how it would be done with yyaxis (if possible) There are a number of old tools on the File Exchange that still wor...

Create a plot with 2 left axes and 1 right axis

I don't know how it would be done with yyaxis (if possible) There are a number of old tools on the File Exchange that still wor...

25 dagen ago | 0

Answered

Evaluating maxima and minima of functions of two variables

How would you solve a minimization problem on paper? If you use the symbolic toolbox, it's basically the same. syms x y D...

Evaluating maxima and minima of functions of two variables

How would you solve a minimization problem on paper? If you use the symbolic toolbox, it's basically the same. syms x y D...

25 dagen ago | 0

| accepted

Answered

Why image doesnt show correctly while reading a binary file?

The files are just literal text files with a .bin extension. The easy way to deal with that is just rename the file. If you wa...

Why image doesnt show correctly while reading a binary file?

The files are just literal text files with a .bin extension. The easy way to deal with that is just rename the file. If you wa...

25 dagen ago | 1

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Answered

To find Volume under Surface

Rearrange the implicit equation and observe symmetry and intersections to simplify the task. syms x y z0 = 0; z1 = x+y-1; ...

To find Volume under Surface

Rearrange the implicit equation and observe symmetry and intersections to simplify the task. syms x y z0 = 0; z1 = x+y-1; ...

26 dagen ago | 0

| accepted

Answered

Inserting non zero element in diagonal position of a nonzero matrix

This isn't that much different than Benjamin's answer now that I look at it, but eh. I guess it's my own spin. This should wor...

Inserting non zero element in diagonal position of a nonzero matrix

This isn't that much different than Benjamin's answer now that I look at it, but eh. I guess it's my own spin. This should wor...

26 dagen ago | 1

| accepted

Answered

I need help clarifying this part of the code

I'm going to assume that the intent is to simplify the operations and that X and Y are numeric column vectors whose values may n...

I need help clarifying this part of the code

I'm going to assume that the intent is to simplify the operations and that X and Y are numeric column vectors whose values may n...

26 dagen ago | 0

Answered

Thinning: a sequence of four structuring elements, b set A, c to k thinning by each of the structuring elements, l result after convergence, m conversion to m connectivity

Let's assume that the image is confusingly backwards and that black is true and white is false. This is what the existing tools...

Thinning: a sequence of four structuring elements, b set A, c to k thinning by each of the structuring elements, l result after convergence, m conversion to m connectivity

Let's assume that the image is confusingly backwards and that black is true and white is false. This is what the existing tools...

26 dagen ago | 0

Answered

One command to extract all the data

Just permute the array dimensions. sla = cat(3,(1:10).',(11:20).',(21:30).',(31:40).'); % smaller example array size(sla) % 4 ...

One command to extract all the data

Just permute the array dimensions. sla = cat(3,(1:10).',(11:20).',(21:30).',(31:40).'); % smaller example array size(sla) % 4 ...

27 dagen ago | 0

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Answered

Merging two images with background

This should be a start fg = imread('bball.jpg'); bg = imread('lights.jpg'); % resize fg fg = imresize(fg,0.5); sfg = size...

Merging two images with background

This should be a start fg = imread('bball.jpg'); bg = imread('lights.jpg'); % resize fg fg = imresize(fg,0.5); sfg = size...

27 dagen ago | 0

| accepted

Answered

Grouping minute data by day and assigning to a variable

I never really do much with datetime objects, so I'm sure that there are better ways. This is at least a start. This should gr...

Grouping minute data by day and assigning to a variable

I never really do much with datetime objects, so I'm sure that there are better ways. This is at least a start. This should gr...

27 dagen ago | 0

Answered

Create colormap and set it for a plot3(x,y,z,colormap_value)

That should be simple enough. Since you're plotting markers only, just use scatter3(). n = 50; t = linspace(0,pi,n); x = cos...

Create colormap and set it for a plot3(x,y,z,colormap_value)

That should be simple enough. Since you're plotting markers only, just use scatter3(). n = 50; t = linspace(0,pi,n); x = cos...

27 dagen ago | 0

Answered

which imshow is true?

Tools like imshow() and imwrite() expect image data to be scaled according to class-dependent limits. For floating-point image ...

which imshow is true?

Tools like imshow() and imwrite() expect image data to be scaled according to class-dependent limits. For floating-point image ...

28 dagen ago | 0

| accepted

Answered

mean filter special matrix apply to image. Salt and pepper noise

Normalize the filter sum and apply it with imfilter(). originalimg = imread('coins.png'); noisyimg = imnoise(originalimg,'salt...

mean filter special matrix apply to image. Salt and pepper noise

Normalize the filter sum and apply it with imfilter(). originalimg = imread('coins.png'); noisyimg = imnoise(originalimg,'salt...

29 dagen ago | 0

Answered

Preserve the label information when extracing boundaries from label matrix

You can do something like this: A = imread('blobs.png'); L = bwlabel(A); B = L.*boundarymask(L); % multiply [min(L(:)) m...

Preserve the label information when extracing boundaries from label matrix

You can do something like this: A = imread('blobs.png'); L = bwlabel(A); B = L.*boundarymask(L); % multiply [min(L(:)) m...

29 dagen ago | 0

Answered

Hello everyone , how can i remove the noise in the image without having effect on my RIO?

Here's a start. There's more that could be done, but don't assume this is universally applicable. A = rgb2gray(imread('https:/...

Hello everyone , how can i remove the noise in the image without having effect on my RIO?

Here's a start. There's more that could be done, but don't assume this is universally applicable. A = rgb2gray(imread('https:/...

ongeveer een maand ago | 0