Mehri Mehrnia
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MEDIA DE ME GUSTA
Contribute at least one answer each month for 3 consecutive months
Awarded to Mehri Mehrnia on 02 Aug 2022
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Awarded to Mehri Mehrnia on 27 Jul 2022
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Feeds
Pregunta
reduce resolution of an MRI image
to reduce the resolution of grayscale MRI image, I cut the sorrounding area of k-space(FFT of the image). the rsult I get is rea...
6 meses hace | 2 respuestas | 0
2
respuestaswhat is wrong with ifft process on this image?
what is that division by m??
6 meses hace | 0
Pregunta
dilate a shell while keeping openings
I have a shell which is not concrete. while dilating, the opennings are going to be closed. how can I solve this problem. I've i...
8 meses hace | 1 respuesta | 0
1
respuestaPregunta
OTSU for fibrosis quantification
wall area (ROI) is highlighted.
10 meses hace | 1 respuesta | 0
1
respuestapearson and Spearman correlation and the corresponding 95% and 99% confidence level in Matlab
Is "corrcoef" for Spearman correlation?
11 meses hace | 0
How to add Rician noise to an image?
what you have done looks wrong for me. if you ignore imaginary part of image then noisy image is same as original one.
alrededor de 1 año hace | 0
Save all the plots
Based on the answers, it means there is no 1 line of code which can save all open plots?
más de 1 año hace | 0
Pregunta
spline for corner object
I have a contour that I have extracted important points of it based on detectHarrisFeatures. Now I need to connect these points ...
más de 1 año hace | 2 respuestas | 0
2
respuestasPregunta
extract control points of curve with spline
I almost studied whole matlab help and mathwork posts about spline. But, nobody wants to extract control points out of a give...
casi 2 años hace | 2 respuestas | 0
2
respuestasPregunta
norm vector of pixels on edge of an image
I need to show norm vectors of of each pixels on edge of image. an example is attached
casi 2 años hace | 1 respuesta | 0
1
respuestahow to find the gradient of pixels in angular direction?
If I want to find the norm of edge, should I replace 30 with 90 in the above formula? Is "H*cosd(30)+V*sind(30)" a vector or p...
casi 2 años hace | 0
Pregunta
change histogram to PDF
I have attached a histogram which is attached. This histogram is computed step by step based on milions of samples. If I don't...
casi 2 años hace | 1 respuesta | 0
1
respuestaHow can we calculate probability density of a histogram?
I have the same problem , just at I want to have same edges in both before normalization and after normalization. I got an str...
casi 2 años hace | 0
Pregunta
pair-was operation on 3D image(3D matrix)
I have 3D image, in fact it's slices of heart which is a 3D matrix(i.e N=640*640*64). I want to do an operation such as asb(diff...
casi 2 años hace | 2 respuestas | 0
2
respuestasEnlarging an image with spline interpolation
Hi, I really appreciate this Q/A, helped me. I have a countour which is a complex shape(left atrial of heart). I want to sele...
casi 2 años hace | 0
Pregunta
difference of SSIM and multissim?
I work on MRI images and now I assess different k-space trajectories on mri images. I used ssim and nrmse to assess the qualit...
casi 2 años hace | 1 respuesta | 0
1
respuestaWhat's the difference between imagesc and imshow?
I work with cardiac MRI images(grayscale). it happens repeatedly that "imagesc" shows the image while "imshow" shows a nonsence ...
casi 2 años hace | 1
Find differences in a set of points without a for loop
I have the question to find all pair-wise difference in a group without loop! My array in scale of milions!
casi 2 años hace | 0
Spline smoothing in images
I have the same question. In all spline questins, we map coordinates of points and then interpolate. But, for imaging, how I c...
casi 2 años hace | 0
how to fill boxes in Boxplot with different colors
I want facecolor with command "boxplot" not "boxchart". Can anyone help? The reason that I use boxplot, it's more handy for "le...
más de 2 años hace | 2
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