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Accept 1 answer given by other contributors
Awarded to Rawan hamdi on 20 Jul 2017
Feeds
Question
how to plot a hyperspectral image in matlab?
Hi, I've used these 2 lines SIZE = [1208,307 ,191]; X = multibandread('dc.tif', SIZE, 'int16',1, 'bsq', 'ieee-le'); ...
bijna 9 jaar ago | 1 answer | 1
1
answerQuestion
How to perform rotation of an image around it's center?
Hi, I want to rotate an image around it's center by the following steps: 1)Translate the image to the origin so that it's cent...
ongeveer 11 jaar ago | 1 answer | 0
1
answerQuestion
How to apply wavelet shrinkage denoising on gray scale images?
Hi, i've tried using wden function to denoise an image but it's only used for 1D signals,any help?
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
How to implement the augmented lagarangian method?
Hi, i have a function like this x = ||g-u||.^2 + lambda.*R where g,u and R are matrices of same size,and l...
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
how to apply augmented lagarangian method to optimize an equation?
Hi, i'm having an equation : x = argmin ||g-u|| where g and u are 2 matrices of size [280,307,191] and i would like to optim...
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
How to get arg min of an N-dimensional Matrix ?
Hi, i'm having an image of size[280,307,191] and i want to get the argmin of it,Any help?
bijna 12 jaar ago | 4 answers | 0
4
answersQuestion
How to get a matrix from a least squares equation?
Hi, If i have this term arg min ||Ax-b|| and i used this code to get x x = lsqnonneg(A,b) How can i obtain x in a matrix...
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
How to optimize a function ?
Hi, i'm running a denoising algorithm on an image which is 3D image and i'm trying to implement some equations and i need help h...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
how to get SNR for 2 images
hi, i have 2 images and i would like to get SNR between these 2 images. i have an original clean image which is X0, i added ...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
How can i implement least squares of the difference between 2 matrices?
Hi, I'm trying to get the least squares of the difference between 2 matrices argmin ||g-u|| both g and u are matrices of ...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
How to raise the tolerance in 'lsqnonneg'
Matlab Exiting: Iteration count is exceeded, exiting LSQNONNEG,Try raising the tolerance (OPTIONS.TolX).
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
how can i get the PSNR for an multibanded image?
Hi, I have an image which is [307,280,191] and i added some noise to it and i want to get the PSNR between the 2 images (origin...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
How to implement the cost function?
Hi, Can anyone help me understand how to implement the cost function: u = arg min(||g-u||).^2 + lambda.R(u) where the term "...
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
How to multiply elements of a matrix by a number
Hi, I'm having a matrix of size X= [280,307,191] and i want to restore the matrix such that the 3rd dimension of the matrix is ...
bijna 12 jaar ago | 2 answers | 0
2
answersHow to loop on a data cube of an image
I've tried this: x= squeeze(X(1,:,1)); y =squeeze(X(:,1,1)); b = X(1,1,:); for i=1:x for j =1 : y ...
bijna 12 jaar ago | 0
Question
How to loop on a data cube of an image
Hi, I'm trying to calculate gradient at each pixel in a data cube of an image an i'm getting this error "index out of bounds be...
bijna 12 jaar ago | 0 answers | 0
0
answersQuestion
How to loop on a data cube of an image
Hi, I'm trying to calculate gradient at each pixel in a data cube of an image an i'm getting this error "index out of bounds be...
bijna 12 jaar ago | 3 answers | 0
3
answershow to read the data of a hyperspectral image eg. samples,bands..etc from a header file in Matlab
Thank you
bijna 12 jaar ago | 0
Question
how to get gradient of an image
hi im having a hyperspectral image and im trying to get the gradient operators of the horizontal and vertical directions but i c...
bijna 12 jaar ago | 3 answers | 0
3
answershow to read the data of a hyperspectral image eg. samples,bands..etc from a header file in Matlab
what tiff class?
bijna 12 jaar ago | 0
Question
how to read the data of a hyperspectral image eg. samples,bands..etc from a header file in Matlab
I'm trying to read a hyperspectral image of type tif in matlab
bijna 12 jaar ago | 4 answers | 0
4
answers
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