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Brian


Active since 2015

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Please help with thresholding and bwareaopen to make binary image
I am thresholding a stack of images that look quite similar (serial CT scans of a model) into binary images (see sample image be...

6 years ago | 1 answer | 0

1

answer

Question


Finding coordinates of point(s) that are specific distance(s) away on a slanted straight line
Hello, I am a physician trying to locate points of interest on medical images. My problem boils down to the following: I have...

6 years ago | 2 answers | 0

2

answers

Question


Finding maximum across arrays with constraints
Hello community, I am trying to solve a maximum problem with constraints. I have 3 arrays: A(a,x,y), B(b,x,y), C(c,x,y). In s...

6 years ago | 1 answer | 0

1

answer

Question


Fitting one histogram to another
Hello! I have a histogram (using imhist) with range x1 to x2. How may I fit it onto a second histogram (again from imhist) wi...

6 years ago | 1 answer | 0

1

answer

Question


BW cluster removal based on size (all parameters identified)
Hello all, I have a stack of 512 by 512 labeled binary images ("lab") from which I wish to remove clusters that are smaller t...

6 years ago | 1 answer | 0

1

answer

Question


Overlaying manipulated RBG with grayscale image
Hello all! I have an all red image ("red") that I combined with a binary mask ("mask"), such that only the pixels that are tr...

6 years ago | 1 answer | 0

1

answer

Question


Invalid axes handle error message
Hello all, I have a GUI with two axes showing CT images (each with a slider to access different slices) and a image blend but...

6 years ago | 1 answer | 0

1

answer

Question


Saving mouse click coordinates on image in GUI
Hello, How do I record up to 5 mouse click coordinates ([x,y] relative to the image with (0,0) being in the upper left) on a...

6 years ago | 1 answer | 0

1

answer

Question


Slider GUI error with non-extreme values
Hello all! I am trying to create a GUI where the slider updates the image slice displayed. I've looked at various examples bu...

6 years ago | 1 answer | 0

1

answer

Question


Obtaining coordinate values within circular ROI
Hello all, I have a function that receives xlist (vector of row coordinates) and ylist (vector of column coordinates) as inpu...

6 years ago | 1 answer | 0

1

answer

Question


Preallocating matrix with a numeric trend
Hello all, I manually wrote out the following matrix, IMiteration (since I didn't know how to code for it): %% Define I1...

6 years ago | 1 answer | 0

1

answer

Question


Using table cells as output field in GUI & loading background variables
Hello all! I am constructing a GUI (with guide), in which values from multiple "editable text fields" are taken for computati...

7 years ago | 1 answer | 0

1

answer

Question


Radial average of 2D matrix
Dear Community I have a filter with a 256 by 256 double dimension. I would like to take the radial average (starting at the c...

7 years ago | 4 answers | 0

4

answers

Question


Radial average of an image data
Hello all, I have a filter with a 256 by 256 double dimension. I would like to take the radial average (starting at the cente...

7 years ago | 0 answers | 0

0

answers

Question


Creating matrix of unique combinations of variables
I need to create a matrix that lists out each combinations of variables in each row. Assume that I have 5 variables a1, a2, a...

7 years ago | 2 answers | 0

2

answers

Question


Group-wise mean in multi-dimensional array (part II)
I have a 256*256*515 double array. It represents 515 images by the dimension of 256*256. Along the 515 axis, every 5 images belo...

7 years ago | 1 answer | 0

1

answer

Question


Group-wise mean in multi-dimentional array
I have a cell array of the dimension 1 x 121 x 515. It represents 515 sets of 1 x 121 frequency data. Since every 5 sets (along ...

7 years ago | 1 answer | 0

1

answer

Question


Averaging multiple cells element by element
I have 7 cells (named 'npsoutOrg1'...'npsoutOrg7'), each with a dimension of 5*1 cells. I want to take the average of each posit...

7 years ago | 1 answer | 0

1

answer

Question


Saving multiple function outputs into respective cells in for loop
I have a function, nps2d that returns 4 outputs [nps,f,nps2,fx,fy]. I would like to save each of the 4 outputs in respective cel...

7 years ago | 1 answer | 0

1

answer

Question


Image saved as DICOM doesn't match original
Dear all, I am a medical student postprocessing DICOM images, and wish to save the resulting image (I_blended) back into DICO...

7 years ago | 1 answer | 0

1

answer