# Piyum Rangana

Active since 2017

Followers: 0   Following: 0

#### Feeds

View by

Question

How to prompt a window with an image when push button pressed ?
The question regarding with the GUIDE GUI. How can I prompt an image window when a push button clicked in order to select a reg...

ungefär 7 år ago | 1 answer | 0

### 1

Question

How to get the matching pixel co-ordination(x,y) of two matrices ?
Here I mentioned the two matrices which include x and y co-ordinations of pixels of two different regions of an image. I want to...

ungefär 7 år ago | 1 answer | 0

### 1

Question

How to compare pixel co-ordination using a for loop ?
Here is my MATLAB code. for j = 1 : numberOfRegions thisBoundary = boundaries{j}; x = thisBoundary(:, 1)...

ungefär 7 år ago | 1 answer | 0

### 1

Question

how to imcrop function customize without selecting a rectangular region ?
Could you please explain how to select a particular object of a image without selecting a rectangular region. for eg: s...

ungefär 7 år ago | 0 answers | 0

### 0

Question

How to remove some detected edges from the edge map ?
Using the prewitt edge detector I obtained the below output. edge(grayImage,'Prewitt') <</matlabcentral/answers/uploaded...

ungefär 7 år ago | 1 answer | 0

### 1

Question

How to get the ROI boudary value Correctly ?
The code I am using mention below. From this code I tried to find the degraded area (damaged area). But the outcome of the code ...

ungefär 7 år ago | 1 answer | 0

### 1

Question

How to find the boundary pixel values round by round ?
consider the two images below <</matlabcentral/answers/uploaded_files/75468/Capture111.PNG>> The first image shows a damag...

ungefär 7 år ago | 0 answers | 0

### 0

Question

How to remove surrounding white areas in a easy way ?
Consider the below image. By finding the mean value of the pixels surrounded of the ROIs(degraded/damaged regions) filled out t...

ungefär 7 år ago | 1 answer | 0

### 1

Question

How to do edge reconstruction in MATLAB ?

ungefär 7 år ago | 0 answers | 0

### 0

Question

How to Segment the ROI ?
whiteMask = redChannel > 206 & greenChannel > 153 & blueChannel > 114; consider the above code, there I am going to create ...

ungefär 7 år ago | 1 answer | 0

### 1

Question

Edge detection and reconstruction of an image..
Is there any proper way to reconstruct the edges using MATLAB or any proper algorithm ?

mer än 7 år ago | 1 answer | 0

### 1

Question

how to apply the result of bwboundaries() output ?
This is the code. %%%%%% Code begins %%%% boundaries = bwboundaries(img); NumOfBoundaries = size(boundaries, 1); ...

mer än 7 år ago | 1 answer | 0

### 1

Question

Assign values to a matrix from a 2 dimensional array....
Think I have a 2-dimensional array(Assume that x and y co-ordinations). And I want to assign '1' to all those co-ordinations giv...

mer än 7 år ago | 1 answer | 0

### 1

Question

Remove the unwanted region from an image....
I have image with an unwanted area, and I want to remove that area and make a mask(RGB) after that operation. How can I easily d...

mer än 7 år ago | 1 answer | 0

### 1

Question

How do I create a mask of an whole image using a defined threshold value ? The output should have a three channels(R, G, B). Cou...

mer än 7 år ago | 1 answer | 1

### 1

Question

Cannot understand the labeled region pixel value ..
Hi, According to the below code, I've labeled an image and by getting one label I take the pixel values out of it. The second o...

mer än 7 år ago | 1 answer | 0

### 1

Question

Need to set all channels(RGB) into 0 of a particular pixel in a RGB image
How I set all channels(RGB) into zero of a particular pixel in a RGB image ?

mer än 7 år ago | 1 answer | 0

### 1

Question

Get the pixel index value of a particular area of an image
Hi, here is my sudo code. im=imread('myImage'); B=im2bw(im); label=bwlabel(C); max(max(label)); for j=1:max(m...

mer än 7 år ago | 1 answer | 0

### 1

Question

Colored image pixel information .....
Think my image is 'im'. If I get the colored image pixel information as im(4,29) using MATLAB : it says (uint8) 142, what inform...

mer än 7 år ago | 1 answer | 0

### 1

Question

how to convert ROI into zero values.
I have colored image with a damaged region(ROI). I want to convert the pixel values of damaged area into zero values. AN exampl...

mer än 7 år ago | 1 answer | 0

### 1

Question

Need to get the pixel values based on the directions(North, South,East,West) in to four arrays
I need to get the circled values into 4 arrays(considering the four directions). note : I obtained the pixel values in image wh...

mer än 7 år ago | 1 answer | 0

### 1

Question

Need to find image restoration working examples
Hi I need to find some working examples of image restoration. Can anyone help me ? Basically, I want to identify the damaged a...

mer än 7 år ago | 1 answer | 0