Question

Image Processing: Remove double edges

Is there a way to remove edges that appear twice in an image? For example, for some edges, the 1D neighbourhood may look like...

mehr als 10 Jahre ago | 1 answer | 0

Answered

writting error meesage

try using the 'msgbox()' function: ie. if r > 0.49 disp('The person is accepted') else msgbox('The person is n...

writting error meesage

try using the 'msgbox()' function: ie. if r > 0.49 disp('The person is accepted') else msgbox('The person is n...

mehr als 10 Jahre ago | 1

Question

Image Processing: Edge Detection on Specific Regions Only..?

I've been stuck on this problem for a while now, and I'm hoping that someone out there might be able to offer a suggestion or tw...

mehr als 10 Jahre ago | 0 answers | 0

Question

Find large area of image, and draw boundaries

Does anybody know of a way to identify a large area of an image (I have segmented the image first to make this easier), and then...

mehr als 10 Jahre ago | 1 answer | 0

Question

Image Segmentation built into MATLAB?!

Does anyone know if there are any image segmentation methods built into any of the MATLAB toolboxes? I have tried a 'lookfor' o...

mehr als 10 Jahre ago | 2 answers | 0

Question

Performing Action to ALL 'struct' Variables

Is there a way to perform the same action on several variables of type 'struct'? In my case, I have 30 separate 'struct' va...

mehr als 10 Jahre ago | 2 answers | 0

Question

libsvm in MATLAB for Mac OS X

I know this might not be the most appropriate place to ask this question - but I can't think where else to turn, and Google does...

mehr als 10 Jahre ago | 1 answer | 0

Question

Plots: Designing and Saving

How can I include code in my M-File that builds a plot of my data with the following properties: * grid on * a vertical line...

mehr als 10 Jahre ago | 2 answers | 0

Question

Image Processing: Array Problem - right justify?!

I'm attempting to build an array of pixel values that correspond to the pixel values found to the left of a particular pixel of ...

mehr als 10 Jahre ago | 3 answers | 0

Question

Obtain specific pixel values without FOR loop..?

I have a binary image 'image_map' which contains either zeros that represent the background, and ones that represent the object....

mehr als 10 Jahre ago | 1 answer | 0

Question

Image Processing Edge Detection: Remove unwanted edges

Firstly, apologies for the length of this question. But I feel it needs a little bit of an explanation so that my objective can...

fast 11 Jahre ago | 2 answers | 2

Question

Finding neighbors of an object from labeled image

I have used segmentation and labelling techniques to assign each object within an image a unigue number. For example, the sky w...

fast 11 Jahre ago | 1 answer | 0

Question

Image Processing: Finding areas of high contrast

I would like to find the areas of highest contrast in a grayscale image. For example, when the pixels go from sky to buildings ...

fast 11 Jahre ago | 1 answer | 0

Answered

Saving filtered image

% convert image to intensities int_vals = mat2gray(im_e); % save intensities using imwrite imwrite(int_vals, 'filtered_...

Saving filtered image

% convert image to intensities int_vals = mat2gray(im_e); % save intensities using imwrite imwrite(int_vals, 'filtered_...

fast 11 Jahre ago | 1

| accepted

Question

Saving filtered image

I have tested some code that applies homomorphic filtering to an image in the logarithmic space: %%%%%log of image im_l=lo...

fast 11 Jahre ago | 2 answers | 1

Question

GUIDE: Calling button press on key press

Does anyone know of a way to enable the callback for a button press (as if it were clicked) when a user presses a specified key ...

fast 11 Jahre ago | 1 answer | 0

Question

GUIDE: build an array of pixel coordinates by pressing button or carriage return

Hello, I have built (with a lot of help) a basic GUI that allows a user to select a region of interest for an image, and then...

fast 11 Jahre ago | 1 answer | 0

Question

How to display a zoomed image in GUIDE

Hello, Can anyone please advise me how I can display a zoomed/magnified image in GUIDE? Ideally, I would like to display the...

fast 11 Jahre ago | 2 answers | 0

Question

GUIDE: preview zoomed image based on mouse over of fullsize image

Does anyone know of a way to zoom right in (so that pixels can be seen) to parts of the image that a user is hovering the mouse ...

fast 11 Jahre ago | 1 answer | 0

Question

Selecting a row of image pixels as ROI from GUI

Hello, Does anyone know of a way to use GUIDE to allow a user to select a 1-dimensional row (vector) of pixels in an image as...

fast 11 Jahre ago | 1 answer | 0

Question

Cellfun to element-wise average cell vectors?

Is there a way to use cellfun such that it computes the element-wise average of each element for all cell vectors? (all the arra...

fast 11 Jahre ago | 1 answer | 0

Question

Adding vertical line to plot?

Hi there, Can anyone please tell me how I can add a vertical line to my plot at a specified sample point? For example, I hav...

fast 11 Jahre ago | 11 answers | 9

Question

showing image color planes in color

Hi all, Does anyone know of a way to display the color planes of an image individually, and in colour? I am extracting each ...

fast 11 Jahre ago | 1 answer | 0

Question

superimpose quiver plot onto image

Hi, Does anyone know a way of superimposing the gradient vector field of an image onto the image itself? As far as I can tel...

fast 11 Jahre ago | 1 answer | 0

Answered

extracting eys and lips in an binary image

Try "help bwlabel"... Essentially, this function will numerically label each connected component of your image. You can then w...

extracting eys and lips in an binary image

Try "help bwlabel"... Essentially, this function will numerically label each connected component of your image. You can then w...

fast 11 Jahre ago | 0

Question

Gradient Field of an Image...

Hi, Does anyone know how to calculate the gradient field of an image? I have checked the use of Quiver plots to achieve this...

fast 11 Jahre ago | 1 answer | 0

Question

plotting frequency distribution of fft2 transformed image...

Hi, I wonder if anyone is able to help me find a MATLAB function/solution for plotting the Fourier transform frequencies on t...

fast 11 Jahre ago | 1 answer | 0