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Brian


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Domanda


Type problem with psnr
I'm using the command psnr on a reference image and a changed image, but I'm getting a class error. When I run the code, I get ...

circa 10 anni fa | 0 risposte | 0

0

risposte

Domanda


Image types and matrix multiplication
Lena= im2double(rgb2gray(imread('lena.bmp'))); energyLena= sum(sum(I.^2)) WaveletTransform= T1*I*inverse(T1); %%T1 is ...

circa 10 anni fa | 2 risposte | 0

2

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Risolto


Add two numbers
Given a and b, return the sum a+b in c.

circa 10 anni fa

Risolto


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

circa 10 anni fa

Risolto


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

circa 10 anni fa

Risolto


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

circa 10 anni fa

Domanda


Substitute matrix values without mchange
I am using some code to substitute values without the symbolic toolbox. The code follows. # 1: B=A(A>2) # 2: T=zeros(size(A...

circa 10 anni fa | 1 risposta | 0

1

risposta

Domanda


Converting types without symbolic toolbox
I have a matrix which I want to convert to a list so that I can eliminate zeros. I have a code in Maple for this task, but can'...

circa 10 anni fa | 1 risposta | 0

1

risposta

Domanda


Making a list of a large matrix
The help page for making a list wasn't very informative for me. I have a list of ascending to descending values in a matrix, an...

circa 10 anni fa | 0 risposte | 0

0

risposte

Domanda


Wavelet Transform energy preservation
Some brief understanding of this topic is required as I describe my problem. In Wavelet image compression, one has two main com...

circa 10 anni fa | 0 risposte | 0

0

risposte

Domanda


Help understand the sumsqr algorithm
For a current project, I've begun switching between versions of matlab. For my trial of 2014, I guess I didn't download the neu...

circa 10 anni fa | 2 risposte | 0

2

risposte

Domanda


Trouble with image importing
In my project, which focuses on image processing techniques, I have a significant fundamental problem. When I try to import a bl...

oltre 10 anni fa | 2 risposte | 1

2

risposte

Domanda


sum of squared elements in a matrix
I tried using the sumsqr to sum squares of each element in a matrix I don't think I understand the syntax. I tried putting the ...

oltre 10 anni fa | 1 risposta | 0

1

risposta

Risposto
Multiplying matrices of different classes
I am encountering a new problem: When I input an image using imread, the resulting matrix is 3-Dimensional. That is, 256x256x3 ...

oltre 10 anni fa | 0

Risposto
Multiplying matrices of different classes
In calculating threshold, one chooses a value close to .99 to signify how many low values in the matrix we can turn into zeros. ...

oltre 10 anni fa | 0

Domanda


Multiplying matrices of different classes
In my applied math course, we're learning wavelet compression techniques, and my partner and I have so far constructed two matri...

oltre 10 anni fa | 3 risposte | 0

3

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