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Question
Dividing matrices of different dimensions
Hello, I have one image matrix A, 512 x 512, and I have another matrix, B 8x8, I want to transform matrix B, 8x8 matrix, into ...
2 years ago | 1 answer | 0
1
answerQuestion
Image analysis for Signal processing help
Hello, I have an image How can I select a region of this image to crop out a 10x10 region of pixels and then display this on ...
2 years ago | 2 answers | 0
2
answersQuestion
How can I find the median of each element between 2 rows
Hello I am a bit new to MATLAB syntax and get confused I have a matrix of size 3x10. I want to find the median between each el...
2 years ago | 1 answer | 0
1
answerQuestion
Phase correlation of images (Alternative to cross-correlation)
Hello, I have developed a code for phase correlation, and I am trying to run it for some images I have, to find where they match...
2 years ago | 1 answer | 0
1
answerQuestion
Thresholding of images gone wrong
Hello, I have attached a small file of 3 images... When I run the following code of the function 'graythresh', I end up with ...
2 years ago | 2 answers | 0
2
answersQuestion
How to perform OTSU thresholding while retaining the pixel information near the image
The mistake with my code is when I calculate the centroid - The matrix I are centroiding: bin_im = im2bw(B, temp) returns a bi...
2 years ago | 1 answer | 0
1
answerQuestion
How can I add a column at the start of my vector/Matrix?
I have a row vector (1x9), C = [1,2,3,4,5,6,7,8,9] How can I add a column to make it 1x10 and so it reads: C = [0, 1, 2, 3,...
2 years ago | 1 answer | 0
1
answerQuestion
How can I fit a smooth curve to this data and get the equation of the curve?
I tried lsline but this is for best fit, and doesn't really match this data How can I fit a smooth curve to this data and get t...
2 years ago | 1 answer | 0
1
answerQuestion
Cross correlation of images, adding a loop to go through multiple images
Hello, I have a code that cross correlates an image 1 and matches it to an image 2. It then outputs the cross-correlation matr...
2 years ago | 1 answer | 0
1
answerQuestion
How do I use cross correlation to detect the Position of a particle in a 130x296x3 double struct (3 frames)
I have to select a region where a particle is located and than track the movement of the particle across a number of frames. (3 ...
2 years ago | 1 answer | 0
1
answerQuestion
How to obtain r^2 (r squared) value of linear regression plotted using 'lsline'
Hello, what is the syntax to obtain the r-squared (r^2) value if I plotted a best fit linear regression with the 'lsline' functi...
2 years ago | 1 answer | 1
1
answerQuestion
Otsu Thresholding using graythresh
Hello, I have a mat file of roughly 1000 images, uint16 format, which I convert to double format to then threshold each image an...
2 years ago | 1 answer | 1
1
answerQuestion
How would I create a row vector, knowing the first value, the increment and the number of entries?
I have a 85x88x10000 matrix called Ims, followed by a piece of code: frames=zeros(1,size(Ims,3)); This returns an empty row ve...
2 years ago | 1 answer | 0
1
answerQuestion
particle tracking, image analysis.
I have a .mat file with 10,000 images. How can I open them in matlab as frames one after the other, and then proceed to do parti...
2 years ago | 2 answers | 0