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**Content Feed**

Question

Extracting image patches around each pixel

Suppose I have an image of size 256*256 Image = imread('cameraman.tif'); I have to extract patches of 7*7 around each pi...

7 years ago | 1 answer | 0

### 1

answerQuestion

How can i calculate training and testing time of a model using classification learner app?

I am using wine dataset for experiment % load wine_dataset % [dummy, Target] = max(wineTargets); % wineDatase...

7 years ago | 1 answer | 0

### 1

answerQuestion

How could I check that how many elements of x is inside y?

Suppose I have x = [2,7,8,11]; and y = [1,2,4,5,7,8,9,12,15,21,27] How could I check that how many elements of x is...

8 years ago | 1 answer | 0

### 1

answerHow to work with some part of matrix only?

you can use 'imcrop' to crop some part of the image. croppedIm = imcrop(yourImage);

8 years ago | 0

Question

How to extract values from a georeferenced image using point shape file??

I want to extract the values form a grayscale image only on the locations of known points. I have a point shape file of that loc...

8 years ago | 1 answer | 0

### 1

answerQuestion

Why svmclassify shows 'Out of memory' error on the same data on which neural network works very fine?

I have a dataset of dimension <1000*1000*10>, when I tried it to classify using a neural network it works well. What I actual...

8 years ago | 0 answers | 0

### 0

answersQuestion

How to arrange stacked Images into a 2 dimension array?

I have a stack of 40 Images with dimension of 1000*1000 as: Images<1000*1000*40 double> I want to arrange the Images as sh...

8 years ago | 2 answers | 1

### 2

answersQuestion

How to extract values from a matrix using a row - column matrix?

I have a matrix like A = 0.2180 0.5714 0.2476 0.3942 0.9253 0.5082 0.3906 0.5881 0.6529 0...

8 years ago | 2 answers | 1

### 2

answersQuestion

I want to estimate bivariate normal distribution and having trouble estimating it. How can i make it possible?

i want to estimate nomal probability density function of 2 variables (i.e. *bivariate normal distribution* ). i used this form...

9 years ago | 1 answer | 0

### 1

answerQuestion

Error using meshgrid function.

I have 2 matrices 'A' and 'B' both of size 500*500. when i am trying to create meshgrid using [X1,Y1] = meshgrid(A,B); thi...

9 years ago | 1 answer | 0

### 1

answerQuestion

I have problem in accessing nested cell array. How could it be done?

I have hierarchy of cell data. how can i access each cell a1, a2 so on and can i use these data as type double? <</matl...

9 years ago | 1 answer | 0

### 1

answerQuestion

Why this is happening?

[m n] = size(image); I tried this command earlier and it worked well but now showing this: "Indexing cannot yield multiple...

9 years ago | 1 answer | 0

### 1

answerQuestion

sliding window operation in image

I have an image of size 256*256, i want to use 3*3 window which slides over image and change the value of central pixel as sum o...

9 years ago | 1 answer | 0

### 1

answerQuestion

why the error is coming?

Trying to execute this code but it shows error "Subscript indices must either be real positive integers or logicals." [M,N...

9 years ago | 2 answers | 0

### 2

answersQuestion

how can i perform operations on the basis of image location?

I have 2 vectors containing x and y location of a point of an image. My actual image size is 1024*1024 and i have extracted near...

9 years ago | 2 answers | 0

### 2

answersQuestion

How to Crop an Image

I want to crop different parts from an image when i did for i=1:n crop(i)=imcrop(Image); end It shows an error message ??? S...

10 years ago | 1 answer | 0

### 1

answerQuestion

Set of pixel selection in and image

I am having an image of size 200*250 in this image i want to select some region i.e. some set of pixel and assigned it in anothe...

10 years ago | 1 answer | 0

### 1

answerQuestion

code showing "Too many output arguments", how to resolve it?

I am trying to detect lines using following code using hough transform but having this error- "Too many output arguments". I am ...

10 years ago | 0 answers | 0