# hasan alhussaini

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**Content Feed**

Question

A question regarding Ifanbeam and Iradon

Hello i had a technical question regarding these functions. So i have a magnified sinogram, and when i reconstruct the ifan...

circa 4 anni ago | 0 answers | 0

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answersQuestion

Ifanbeam and Iradon comparison

Hello, i've got two images of the same object. 1st from Ifanbeam and the second from Iradon. is there a image quality techn...

circa 4 anni ago | 0 answers | 0

### 0

answersQuestion

Gradient magnitude of an image

Hello I've got a general question regarding the gradient magnitude. if i have a gradient magnitude one of image, and the grad...

circa 4 anni ago | 1 answer | 0

### 1

answerQuestion

Sharpness of an image

Hello, Is there a way to detect the sharpness value of a profile line? Thanks

circa 4 anni ago | 1 answer | 0

### 1

answerQuestion

how to use contours to compare two images?

Hello, i'm trying compare the following two attachments using contours. if anyone has any information that i can read up about c...

circa 4 anni ago | 1 answer | 0

### 1

answerQuestion

cone beam x-ray

Hello, i have a set of projections at one rotation angle, I've used iradon/ifanbeam to get the image reconstruction for b...

oltre 4 anni ago | 0 answers | 0

### 0

answersQuestion

creating a dragable box

Hello, i'm trying to create a drag able box in one image, and use the [xmin ymin width height] of the box that i created as the ...

oltre 4 anni ago | 0 answers | 0

### 0

answersQuestion

I need help with ifanbeam

Hello, i'm quite new to matlab, and i'm trying to implement image reconstruction from projections. i have a fanbeam project...

oltre 4 anni ago | 0 answers | 0

### 0

answersQuestion

iradon and radon function

Hello! I'm quite new to the idea of Radon and Iradon functions. Therefore i was not sure if i did them correctly or not. i ha...

oltre 4 anni ago | 0 answers | 0

### 0

answersQuestion

saving an image in a specific folder

Hello, i'm trying to save an image to a specific folder, however when i save the image i would like to give it any name i ...

oltre 4 anni ago | 3 answers | 0

### 3

answersQuestion

selecting a text file from a work directory

Hello! i'm quite new to matlab. i've got the following code [pos_file,workdir] = uigetfile({'*.jpg;*.tif;*.png;*.gif;.txt*','...

oltre 4 anni ago | 2 answers | 0

### 2

answersQuestion

Adding elements of a matrix

Hi, I've attached an image of a variable i have. the variable F is a 5x22 cell, each element in the cell is a 1x3 containing ...

oltre 4 anni ago | 2 answers | 0

### 2

answersSplitting an image into smaller regions

Hi Image Analyst. I've altered your code to put each block of the image in a bin named F{r,c}. and F{r,c} is a cell of 2x4...

oltre 4 anni ago | 0

Question

L1 and l2 norm

i'm trying to find the code not the function to implement L1 and L2 norm. I'm trying to compute the L1 and L2 norm of pixels ...

oltre 4 anni ago | 2 answers | 0

### 2

answersQuestion

Reading text in a cell array

Hey! Basically i have a variable called imagetype1, that is a 1x1 cell. that tells gives me a category type such as flowers,d...

oltre 4 anni ago | 1 answer | 0

### 1

answerQuestion

how to save a name in a cell

Hey, so basically i have this variable v, that is in a loop k:1:600 the loop looks at all my images in the folder(which is 6...

oltre 4 anni ago | 1 answer | 0

### 1

answerQuestion

Splitting an image into smaller regions

Hi Guys, I'm working on a code that creates an RGB descriptor for visual search. i've managed to implement the rgb descriptor...

oltre 4 anni ago | 3 answers | 0

### 3

answersQuestion

how to encode a low pass filter to an image

Hi, I'm quite new to Matlab. im trying to write an encoded code to filter an image. i'm using the following filter code. filt...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

im saving two images but how do i change their names ?

Hi, Basically the code saves the two images, but how would i go about giving each image a name? because atm they are overwriting...

circa 5 anni ago | 0 answers | 0

### 0

answersQuestion

How does Iradon and radon work?

Hi I'm a beginner, I've got a sinogram attach, and i'm not sure what i'm doing wrong with the following code, the data projectio...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

deleting some information in a matrix

Hi i'm quite a beginner on Matlab. basically, the following is an example of a coding im working on, I'm trying to make B hav...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

averaging a column in a image matlab

i'm getting an artefact in my image its going down, is there away to get rid of it? i was thinking maybe use the column on th...

circa 5 anni ago | 2 answers | 0

### 2

answersQuestion

is there a way to plot a line that is the reverse of the y axis?

Hi i'm looking for a synatix or function that rotates a plot, e.g if i have a peak that is a minimum, is there a way to flip ...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

trying to average some tiff's images

Hi i'm trying to average 5 tiff images, i'm not sure if im doing it correctly? A=5 ysize= 2368; xsize= 2240; dark ...

circa 5 anni ago | 2 answers | 0

### 2

answersQuestion

Need help with a syntax

basically i'm converting an idl syntax to MATlab the idl syntax is known as "fix" which "The FIX function converts a given expr...

circa 5 anni ago | 2 answers | 0

### 2

answersQuestion

translating from idl to matlab

Hi I'm trying to translate some codes i have from IDL to matlab. the idl codes are lineflat = reform(flatsub(*,cutline)...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

is there a function similiar to "replicate" from idl?

the idl syntax is described as "The REPLICATE function returns an array with the given dimensions, filled with the scalar value...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

if there a synatix that selects and cuts a line of a image in matlab?

hi i'm looking for syntax that selects a line in a image and cuts it. or is there anything around it? Thanks

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

i'm looking for a function that scales the intensity values of Image

Hi I'm looking for a syntax that scales the intensity values of an image lets called "im" between the minimun(min) and maximum ...

circa 5 anni ago | 1 answer | 0

### 1

answerQuestion

I'm really stuck here.. average images

Hi so i've been working on this code for awhile now. the idea behind it is that i used a machine to capture some images, the ...

circa 5 anni ago | 1 answer | 0