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Ahmad Alenezi


Last seen: environ 3 ans il y a |  Actif depuis 2019

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How to plot a phase histogram of a series of images
I already wrote a code to produce phase images out of a nuclear medicine scan called Radionuclide ventriculography (MUGA). Now, ...

plus de 3 ans il y a | 1 réponse | 0

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réponse

Question


Do I have to perform Image normalization before division ?
Hi all I am trying to estimate left ventricle ejection fraction 'LVEF' from two images derived from a seriese of images (maxi...

presque 4 ans il y a | 1 réponse | 0

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réponse

Question


how to exclude images that does not fulfil conditions ?
Hi I am using region growing code on a series of images that correspond to a patient. I assigned a seed point from which the re...

presque 5 ans il y a | 1 réponse | 0

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Réponse apportée
How to convert a medical image file into .png image format?
HI there what does this means : [folder, baseFileName, ext] = fileparts(existingFullFileName); i am receiving error because...

presque 5 ans il y a | 0

Question


How to apply Region Growing function on DICOM images ?
Hi all I have a DICOM file (128*128*16) consisted of 16 sequencial images. I want to apply Region Growing function ( a functi...

environ 5 ans il y a | 1 réponse | 0

1

réponse

Question


How to copy a a ROI created by roipoly ?
Hi there i created a ROI over a specific part of an image using roipoly (see image). i would like to copy this exact ROI shape ...

environ 5 ans il y a | 1 réponse | 0

1

réponse

Question


How to remove glitch artifact from image ?
Hi I removed the criss-cross artifact in this image (below) using the code below. The code i used remves the noise in frequenc...

environ 5 ans il y a | 1 réponse | 0

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Question


How can I display a specific frame in my image series ?
I have a series of images (n=16), i would like to display the frame number 10. How can i do this ? Morover, I would like to sub...

environ 5 ans il y a | 1 réponse | 0

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Réponse apportée
sum pixel value in an image.
Hi Divya, Yes, these results are the expected. Thanks indeed One last question: I know how to apply region of interest over a...

environ 5 ans il y a | 0

Question


How to calculate left ventricle ejection fraction?
Hi all I would like to calculated left ventricle ejection fraction LVEF of the heart from an image set. I have a series of plan...

environ 5 ans il y a | 1 réponse | 0

1

réponse

Question


sum pixel value in an image.
Hi all, I have a series of images in one dicom file (n =16 images). How can i find frames that contain maximum and minimum sum ...

environ 5 ans il y a | 4 réponses | 0

4

réponses

Question


How to apply noise reduction filter to my DICOM image series
HI all I am trying to apply noise reduction filter to my DICOM image series (n = 16). let's suppose my image name is (MM.dcm)....

environ 5 ans il y a | 1 réponse | 0

1

réponse

Question


Convert pixel values to tones of sound
Hi there I have a project where I should convert pixel values to sound tones in a greyscale set of images (arranged in order)...

plus de 5 ans il y a | 1 réponse | 0

1

réponse

Question


How to calculate sum of pixel values in grey scale images.
Hi all, I have a grey scale image that contains a tumour uptake and i want to know how to calculate the sum of all pixel values...

plus de 5 ans il y a | 1 réponse | 0

1

réponse

Question


Finding frequency of values in an array
Hi there I have a 128x128x16 double array. Firstly, I would like to get the total number of values < zero in this array. Then,...

plus de 5 ans il y a | 2 réponses | 0

2

réponses

Question


apply equations to all of the dicom images in a file
Hi there I made a code to calculate a parameter in heart out from a set of images (scan). Each scan contians 16 frames. I have...

plus de 5 ans il y a | 1 réponse | 0

1

réponse