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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 ...
mehr als 11 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Image types and matrix multiplication
Lena= im2double(rgb2gray(imread('lena.bmp'))); energyLena= sum(sum(I.^2)) WaveletTransform= T1*I*inverse(T1); %%T1 is ...
mehr als 11 Jahre vor | 2 Antworten | 0
2
AntwortenGelöst
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...
mehr als 11 Jahre vor
Gelöst
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 ...
mehr als 11 Jahre vor
Gelöst
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:...
mehr als 11 Jahre vor
Frage
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...
mehr als 11 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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'...
fast 12 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
fast 12 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
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...
fast 12 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
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...
fast 12 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
fast 12 Jahre vor | 2 Antworten | 1
2
AntwortenFrage
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 ...
fast 12 Jahre vor | 1 Antwort | 0
1
AntwortMultiplying 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 ...
fast 12 Jahre vor | 0
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. ...
fast 12 Jahre vor | 0
Frage
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...
fast 12 Jahre vor | 3 Antworten | 0
