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Question
Read / Output one pixel value from a 4D Matrix
Hi, I have a 4D matrix (128x128x2x96) lets call it 'A' and I want to test the pixel stability throughout all 96 reps. I need ...
plus de 12 ans il y a | 1 réponse | 0
1
réponseQuestion
Normalization by an unaffected hemisphere of a brain to the affected hemisphere
Hi, I have few images of a brain (128x128x12) where I have affected one hemisphere of the brain by a certain method and I wan...
plus de 13 ans il y a | 1 réponse | 0
0
réponseQuestion
Size of a kernel
Hi I have MR data acquired at 3.8x3.8x8.0 mm resolution. First I load it in to Matlab and then do some Gaussian filtering. ...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Filtering to increase SNR
I have a bunch of images that have been generated after some calculations. The images were originally acquired from a 3T MRI. ...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Medical Imaging Question- Mean inside a masked image
Hi, I Am trying to compute the mean values within the brain. I created a binary Mask of the brain. And I am computing my mea...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Insert Degree Symbol in Axes Title
Hello Anyone know how to display the degree symbol ° in the title on a plot? Also want to know how to display it on the top of ...
plus de 13 ans il y a | 4 réponses | 3
4
réponsesQuestion
Calculate SNR pixel-by-pixel
I am trying to figure out the Signal to Noise Ratio (SNR) in an image matrix (64x64x16). (called Image_Matrix_3D in the code) ...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Mean of a bunch of slices
% -----------------Step 3 -Masking the PCASL Files PCASL_Files_Masked= PCASL_Files.*Human_Mask; %apply the mask. P...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Efficient way of preallocating memory
Hello, Just wondering is there a better way to preallocate memory for a bunch of 4D arrays. Because so far the way I am doin...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
help with the montage function
Hello! I am having trouble with the montage function. I have a 3D matrix of 256 x 256 x 10. After reading this ( <http://w...
plus de 13 ans il y a | 1 réponse | 0
1
réponseCreating a 3D array out of multiple 2D arrays
You can also do Mask_3D(:,:,1)=Mask_1 for index=1:10 eval(['Mask_3D(:,:,index)=Mask_' num2str(index)';']); en...
plus de 13 ans il y a | 3
Question
Creating a 3D array out of multiple 2D arrays
I have 10 masks that are 256 x 256 each. These masks are for 10 respective slices, so I want to combine them and make a 3D arra...
plus de 13 ans il y a | 3 réponses | 1
3
réponsesQuestion
Deleting a a part of a dimension in a 4D array
Hi, I have a 4D array of MR images that are 64 x 64 x 128 x 16. side=64 # of images=128 # of slices in one image=16 I ...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesResizing a stamp size 64X64 dicom image to 256X256
Thank you Sean and Anton! Anton, that was very useful info! I used the wrong word "resolution'. I just need to re-size the image...
plus de 13 ans il y a | 0
Question
Resizing a stamp size 64X64 dicom image to 256X256
Does anyone have any ideas on the best way to resize a 64X64 dicom to a 256X256 dicom. I need to do ROI analysis, hence I need a...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Seperating a montage/mosaic of DICOM images in to individual slices
HI, I have a 3D matrix of 256 X 256 X 128 (means 128 images of 256 X 256 resolution). Within one of these images there are 10...
plus de 13 ans il y a | 1 réponse | 0
