Question


How do I define the bottom row?
Hi I have acquired several ultrasound images with different pin sizes, for a validation test of mine. I know the real pin s...

6 months ago | 0 answers | 0

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Question


Suggestions of how to improve the segmentation?
Hello I got this segmented image (see attached), using a ChanVese contour. The problem is that after a several number of iter...

6 months ago | 0 answers | 0

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Question


What would be the outcome of this line?
Hi If I use this line code for col = col1 : col2 row2 = find(mask(:, col), 1, 'last'); % Get bottom row of mask ...

7 months ago | 0 answers | 0

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Question


Why I get extra columns with irrelevant results?
Hi I use those lines to get the number of pixels among several rows and columns for col = 390 : 466 h = imdistline(gca,...

7 months ago | 1 answer | 0

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Question


Why this incongruency happens regarding number of pixels?
Hi I use the image I attached. I use this line to get the sum of pixels from row 307 to 366, at columns from 464 to 490 for c...

7 months ago | 1 answer | 0

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Question


How can I make this active contour more robust?
Hi I attach the segmented images. As you can see the contour is not robust enough. As a result, there are gaps between the hea...

7 months ago | 0 answers | 0

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Question


How to measure the pixels of the central column
Hi See attached image please. I want somehow, Matlab, identify the central column of pixels that start from the top (red p...

7 months ago | 0 answers | 0

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Question


How can I make the active contour work more efficiently?
Hi. As you can see from the image I attach I am trying to segment the image, using a Local Gaussian Distribution algorithm ac...

7 months ago | 0 answers | 0

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Question


Just a small modification to go please
Hi I have modified my code from previous times. I am so close to achieve what I want to achive but I know that I cannot surpa...

7 months ago | 1 answer | 0

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Question


Modified but still get errors. Is it more clear to help me?
Hi I just modified the code I am trying to use in order to select one out of two images. I use that code MyMatrix = Img; ...

7 months ago | 1 answer | 0

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Question


What is this error about after am trying to indice an image out of a uibutton and uicontrols ?
I use this script bg = uibuttongroup('Visible','off',... 'Position',[0 0 .2 1],... 'Sele...

7 months ago | 0 answers | 0

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Question


What is wrong with this uibutton and callback function?
Hi I want to have two radio buttons pick one image at a time for further processing. I use this code. bg = uibuttongroup('Vi...

7 months ago | 2 answers | 0

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Question


How do I find and how do I change the starting point of the active contour?
Hi I use the below code for automated segmentation. It is granted, that every time the circular active snake contour will sta...

8 months ago | 0 answers | 0

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Question


How to ideally erode this line?
Hi See attached image. Imagine, it is a line of a contour. I need to erode it to a point to be a nice clear curve with no ...

8 months ago | 0 answers | 0

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Question


I need to chose between two images for postprocessing using uibuttongroup. Why is not working?
I have two images as Option 1 and Option 2. How to make it run and user be able to chose among the two images? Is it corr...

8 months ago | 1 answer | 0

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Question


Are those spikes in the excel graph error and needs to be sorted?
Hi I attach a segmented image done in Matlab and an excel graph related to that image (and other images in series). What M...

8 months ago | 0 answers | 0

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Question


How to make an interactive panel for the user to chose among several options
Hi I want to have a panel (User Interface) with 3-4 different cropping image options and the user shall be able to chose the ...

8 months ago | 1 answer | 0

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Question


Is it the same when we say dpi (dots per inch) as pixels per inch?
Hello See question line. Are they equivalent terms? How someone can determine whether the image is appropriate for printing w...

8 months ago | 0 answers | 0

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Question


What is this error about?
Hi I am trying to use an active contour and I get the error Error using contour (line 46) Input arguments for contour must ...

8 months ago | 0 answers | 0

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answers

Question


How to have a user prompt window to submit real time values
Hi I am using a Local Gaussian Distribution algorithm to auto segment some images. This algorithm contains a few parameter...

8 months ago | 2 answers | 0

2

answers

Question


What is this error I get?
Hi I am using an evolution Local Gaussian Distribution active contour for automated segmentation and I get this error: Subscri...

8 months ago | 1 answer | 0

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Question


Why I get this error of matrices not consistent? What's wrong?
I am trying to use that code message = ({'Welcome, XXXXXXX';'I hope to Enjoy it' ; 'Please, share it' ; 'Cheers!'}); myicon ...

8 months ago | 1 answer | 0

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Question


How to remove a percentage of image counting from the bottom to top
Hi I want to subtract a portion of image (e.g. 30% of it from the top). How do I do that? If I do, something like this, ...

8 months ago | 1 answer | 0

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Question


How can I make an auto cropping command
Please, see the two images I attach. They are actually the same images, but the one is cropped at the middle of the imaging w...

8 months ago | 1 answer | 0

1

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Question


Matlab needs to calculate distance and find pixel size
Hi, I need to do image calibration between two known points on an image. Let's say that we have those two points [130,799] an...

8 months ago | 1 answer | 0

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Question


How to make it expand vertically?
Please, see the image I attach. Imagine the middle rectangle to be an active contour. Is there a way programmatically to make...

8 months ago | 0 answers | 0

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Question


How do I segment the square inside the square?
Hi How do I segment the square/rectangle inside the square image. All the rest should be masked. I want only the gray square ...

8 months ago | 0 answers | 0

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Question


Scan the image until the first and last points I set
Hi Matlab community. I need your valuable help on this. Please see attached image. I annotate the starting and end point of s...

8 months ago | 1 answer | 0

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Question


Matlab is not properly working on Macbook (MacOS Sierra)
Hi I am trying to transit my work from Windows pc to Macbook. The problem is that in my Macbook, the folder that Matlab "sees...

8 months ago | 0 answers | 0

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Question


Suggestion of how to deal with artefacts
Hello Please, see attached image. At the top boundary area, there is an artefact that prohibits the active contour to take a...

8 months ago | 1 answer | 0

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