# Teemu

Active since 2013

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Question

Read image and save it using imwrite?
Hello! I read pictures using imread and then try to write it to folder c:\result. The name of the images should be same than rea...

mer än 11 år ago | 2 answers | 0

### 2

Question

How can I save matrix to .txt file?
I have numerical matrix size of 64*60 and I like to save it to .txt file. How can I do it as easy as possible? without repeating...

mer än 11 år ago | 3 answers | 0

### 3

Question

How to pick next value from vectors?
I have a cumulative vector, size is about 200. I want to pick up that index where value is 0,5 or value which is next to it. For...

mer än 11 år ago | 3 answers | 0

### 3

Question

Cumulative sum for a vector
I have vector 1x5 (1,5,3,2,8) and I like to do cumulative sum of that. So the answer should seems like (6,9,11,19). Can you help...

mer än 11 år ago | 1 answer | 0

### 1

Question

How can I subplot images close to eachother using subplot?
How can I subplot images close to eachother using subplot? Now I have plotted 20 images to same figure and space between images ...

mer än 11 år ago | 2 answers | 0

### 2

Question

How I can do edge detection to almost white picture where are black lines/edges?
How I can do edge detection to almost white picture where are black lines/edges? So I want to do edge detection to black edges.

mer än 11 år ago | 1 answer | 0

### 1

Question

How to register where the mouse button is pressed?
Hi! I have picture and I want to know where the mouse button is pressed. For example in picture there are some objects and I wan...

mer än 11 år ago | 1 answer | 0

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Question

I have (double type) matrix where I have NaN values. I want to change all NaN values to 0 value. How Can I do that?
I have (double type) matrix where I have NaN values. I want to change all NaN values to 0 value. How Can I do that?

mer än 11 år ago | 2 answers | 0

### 2

Question

Can I use diff function to subtract pixel from 2-pixel away from it? So it not neighbour pixel.
Can I use diff function to subtract pixel from 2-pixel away from it? So it not neighbour pixel.

mer än 11 år ago | 1 answer | 0

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Question

I have divided one image into subimages--how can I show the subimages lined up near each other?
I have divided one image into four smaller images (subimages). How can I show the subimages like the original image, close to ea...

mer än 11 år ago | 2 answers | 0

### 2

Question

How can I use a loop to subtract a pixel's gray level to it´s neighbor pixel's gray level?
How can I use a loop to subtract a pixel's gray level to it´s neighbor pixel's gray level?

mer än 11 år ago | 1 answer | 0

### 1

Question

How I can compare one pixel to a neighbor pixel and also another pixel?
Also, how I can make a difference histogram of the comparison results? Or how I can make a difference histogram generally?

mer än 11 år ago | 1 answer | 0

### 1

Question

How I can distribute an image to smaller sub-images?
For example, I have a 512x512 grayscale image and I would like to divide it into 10 sub-pictures which I can analyze separately....

mer än 11 år ago | 1 answer | 0

### 1

Question

I how can I use a self-organizing map to picture data?
For example, how can I do graylevels sorting from a picture using self-organizing map? And then show the sorted picture...

mer än 11 år ago | 0 answers | 0

### 0

Question

I have four 1x50 matrices and I want to save them to one 4x50 matrix. How can I do this?
I have four 1x50 matrices and I want to save them to one 4x50 matrix. How can I do this?

mer än 11 år ago | 3 answers | 0

### 3

Question

How I can save varibles to a file? For example, the variable test to the file data.data.
How I can save varibles to a file? For example, the variable |test| to the file |data.data|.

mer än 11 år ago | 1 answer | 0