Answered

Unevenly Map Data to an RGB Map?

If you want to take your colormap and shift it toward one end or the other for some reason, you might be able to do something li...

Unevenly Map Data to an RGB Map?

If you want to take your colormap and shift it toward one end or the other for some reason, you might be able to do something li...

2 månader ago | 0

Answered

Is it possible to go through the elements of an array without resorting to length in a for loop?

You could do something like this a = [1 2; 3 4]; for k = a(:).' % reshape a into a row vector if k>2 fprintf('%d...

Is it possible to go through the elements of an array without resorting to length in a for loop?

You could do something like this a = [1 2; 3 4]; for k = a(:).' % reshape a into a row vector if k>2 fprintf('%d...

2 månader ago | 2

| accepted

Answered

How to order colors (RGB) in my own colorbar?

I think this is an interesting question. Being "interesting" doesn't mean that it's a problem with a unique solution though. A...

How to order colors (RGB) in my own colorbar?

I think this is an interesting question. Being "interesting" doesn't mean that it's a problem with a unique solution though. A...

2 månader ago | 1

Answered

Writing RMSE fomula in Matlab

Assuming that the inputs are of comparable scale and of floating-point class: rmse = sqrt(mean((A(:)-B(:)).^2))

Writing RMSE fomula in Matlab

Assuming that the inputs are of comparable scale and of floating-point class: rmse = sqrt(mean((A(:)-B(:)).^2))

3 månader ago | 0

Answered

Line Plot with Highest value in the middle

You mean y = [0, 5, 0]; plot(y) If you mean something else, you'll have to elaborate.

Line Plot with Highest value in the middle

You mean y = [0, 5, 0]; plot(y) If you mean something else, you'll have to elaborate.

3 månader ago | 0

Answered

Locate and extract values from one array to another

Use ismember() or (more likely) ismembertol(). Without knowing what the data and references look like, I'll have to leave that ...

Locate and extract values from one array to another

Use ismember() or (more likely) ismembertol(). Without knowing what the data and references look like, I'll have to leave that ...

3 månader ago | 1

| accepted

Answered

How can I create a binary mask?

Without having clear technical goals, I'm just going to assume that no technical requirements exist for shape or density. I'm g...

How can I create a binary mask?

Without having clear technical goals, I'm just going to assume that no technical requirements exist for shape or density. I'm g...

3 månader ago | 0

| accepted

Answered

How to smoothen contourf plot to make it look better

You need to use a finer mesh if you want the contour to appear smoother. This is complicated by the fact that all I have is a b...

How to smoothen contourf plot to make it look better

You need to use a finer mesh if you want the contour to appear smoother. This is complicated by the fact that all I have is a b...

3 månader ago | 0

| accepted

Answered

want to draw a graph of a derivative

Something like this: % parameters rmax = 262; Wmax= 10.6*pi; % create values x = -rmax:rmax; y = x.'; rsq = (x.^2 + y.^...

want to draw a graph of a derivative

Something like this: % parameters rmax = 262; Wmax= 10.6*pi; % create values x = -rmax:rmax; y = x.'; rsq = (x.^2 + y.^...

3 månader ago | 0

| accepted

Answered

How to create a matrix with special block diagonal structure

Here's one way. I'm sure there are plenty of others. n = 8; sz = sum(1:n); A = zeros(sz); idx0 = 1; for k = 1:n A(i...

How to create a matrix with special block diagonal structure

Here's one way. I'm sure there are plenty of others. n = 8; sz = sum(1:n); A = zeros(sz); idx0 = 1; for k = 1:n A(i...

3 månader ago | 0

| accepted

Answered

multiply values in different rows

I'm going to guess that this is what you're after: A = [2 3 1 4; 8 5 2 3; 1 2 6 7; 6 8 4 1]; B = [0.1; 0.5; 0.4; 0.2]; C = [1...

multiply values in different rows

I'm going to guess that this is what you're after: A = [2 3 1 4; 8 5 2 3; 1 2 6 7; 6 8 4 1]; B = [0.1; 0.5; 0.4; 0.2]; C = [1...

3 månader ago | 0

| accepted

Answered

hey can any one help me with this error?

Okay, then that's what I suspected. Move the function section into its own file and save it. You can't have the function insid...

hey can any one help me with this error?

Okay, then that's what I suspected. Move the function section into its own file and save it. You can't have the function insid...

3 månader ago | 0

| accepted

Answered

HOW TO ADD MSE TO EXISTING TOOL (CODE)?

Use immse() A = imread('peppers.png'); % some reference image B = imnoise(A,'gaussian',0.001); % a modified copy immse(A,B)...

HOW TO ADD MSE TO EXISTING TOOL (CODE)?

Use immse() A = imread('peppers.png'); % some reference image B = imnoise(A,'gaussian',0.001); % a modified copy immse(A,B)...

3 månader ago | 0

| accepted

Answered

i have create a figure like circle

Try something like this. % parameters rmax = 262; Wmax= 10.6*pi; % create values x = -rmax:rmax; y = x.'; rsq = (x.^2...

i have create a figure like circle

Try something like this. % parameters rmax = 262; Wmax= 10.6*pi; % create values x = -rmax:rmax; y = x.'; rsq = (x.^2...

3 månader ago | 0

| accepted

Answered

How to find the center of matrix

This seems fairly straightforward. % a test array F = zeros(5); F(2,2) = 10; F(4,4) = 10; % global sum of F Ft = sum(F(:...

How to find the center of matrix

This seems fairly straightforward. % a test array F = zeros(5); F(2,2) = 10; F(4,4) = 10; % global sum of F Ft = sum(F(:...

3 månader ago | 0

| accepted

Answered

Draw a solid bounded by many surface

These answers demonstrate one possible method for plotting the truncated surfaces. It's up to you to apply it to your assignmen...

Draw a solid bounded by many surface

These answers demonstrate one possible method for plotting the truncated surfaces. It's up to you to apply it to your assignmen...

3 månader ago | 0

Answered

How to formulate the following vector?

Something like this should work: V = reshape([1:size(R,2); R(4,:)],1,[]);

How to formulate the following vector?

Something like this should work: V = reshape([1:size(R,2); R(4,:)],1,[]);

3 månader ago | 0

Answered

Plot Boxes then Plot them in the original photo ?

The above comment should suffice if all you want is to plot with polyshape. If you actually want to modify the image without ch...

Plot Boxes then Plot them in the original photo ?

The above comment should suffice if all you want is to plot with polyshape. If you actually want to modify the image without ch...

3 månader ago | 0

| accepted

Answered

I want to imread multiple selected files via uigetfile

This assumes that the images are all simple I/RGB images (not indexed images, no RGBA images or multiframe GIFs) [fname dirname...

I want to imread multiple selected files via uigetfile

This assumes that the images are all simple I/RGB images (not indexed images, no RGBA images or multiframe GIFs) [fname dirname...

3 månader ago | 0

Answered

MATLAB Answers Wish-list #5 (and bug reports)

Well, I skimmed a bunch of these threads (you might have noticed) and I didn't see anything about this sort of thing, so I'll ju...

MATLAB Answers Wish-list #5 (and bug reports)

Well, I skimmed a bunch of these threads (you might have noticed) and I didn't see anything about this sort of thing, so I'll ju...

3 månader ago | 0

Answered

how to split a string

To address the OP's particular request: linew = 4; teststr = '123456789'; excess = rem(numel(teststr),linew); output = res...

how to split a string

To address the OP's particular request: linew = 4; teststr = '123456789'; excess = rem(numel(teststr),linew); output = res...

3 månader ago | 0

Answered

convert vector of character to number

Are the inputs always single characters? Are the inputs only A or B? Are the inputs always letters? Does case matter? Here's...

convert vector of character to number

Are the inputs always single characters? Are the inputs only A or B? Are the inputs always letters? Does case matter? Here's...

3 månader ago | 0

Answered

multi-dimensional array - summing the layers (combining)

To sum along a given dimension: dim3sum = sum(val,3);

multi-dimensional array - summing the layers (combining)

To sum along a given dimension: dim3sum = sum(val,3);

3 månader ago | 1

| accepted

Answered

showing warning in command window

Yes, as I mentioned, you need to rename that file or move it somewhere off the search path so that MATLAB doesn't try to use it....

showing warning in command window

Yes, as I mentioned, you need to rename that file or move it somewhere off the search path so that MATLAB doesn't try to use it....

3 månader ago | 0

Answered

Please explain the following line

Without any context, all anyone can give is an answer without context. min(inp(:)) % this is the global minimum of inp max(in...

Please explain the following line

Without any context, all anyone can give is an answer without context. min(inp(:)) % this is the global minimum of inp max(in...

3 månader ago | 0

Answered

i have an error in imshow

You likely have a user-created file called image.m somewhere on the path. You can try to see what is on the path by doing whic...

i have an error in imshow

You likely have a user-created file called image.m somewhere on the path. You can try to see what is on the path by doing whic...

3 månader ago | 0

Answered

Fading/shading an image

A 'multiply' blend is one of the simple and fundamental kinds of image blending. If you have appropriate images to begin with a...

Fading/shading an image

A 'multiply' blend is one of the simple and fundamental kinds of image blending. If you have appropriate images to begin with a...

3 månader ago | 0

Answered

delete an element from string

How do you intend to identify the thing you want to delete? Do you simply want to delete the second string in the array? str...

delete an element from string

How do you intend to identify the thing you want to delete? Do you simply want to delete the second string in the array? str...

3 månader ago | 1

| accepted

Answered

help on graph (w/o common matrix plotting built-in functions)

In the spirit of ridiculousness, here is my attempt: % random binary data data = randi([0 1],10,10) data = 1 1 ...

help on graph (w/o common matrix plotting built-in functions)

In the spirit of ridiculousness, here is my attempt: % random binary data data = randi([0 1],10,10) data = 1 1 ...

3 månader ago | 0

Answered

how to convert rgb to hsi

MATLAB has no tools for HSI or HSL. There are tools on the File Exchange. The ones I use are here: https://www.mathworks.com/...

how to convert rgb to hsi

MATLAB has no tools for HSI or HSL. There are tools on the File Exchange. The ones I use are here: https://www.mathworks.com/...

3 månader ago | 0