hasan alhussaini

Attivo dal 2017

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 1 risposta | 0

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Domanda

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

circa 6 anni fa | 1 risposta | 0

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Domanda

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...

oltre 6 anni fa | 1 risposta | 0

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 0 risposte | 0

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Domanda

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 6 anni fa | 3 risposte | 0

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Domanda

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 6 anni fa | 2 risposte | 0

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Domanda

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 6 anni fa | 2 risposte | 0

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Risposto
Splitting 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 6 anni fa | 0

Domanda

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 6 anni fa | 2 risposte | 0

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Domanda

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 6 anni fa | 1 risposta | 0

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Domanda

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 6 anni fa | 1 risposta | 0

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Domanda

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 6 anni fa | 3 risposte | 0

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Domanda

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 7 anni fa | 1 risposta | 0

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Domanda

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 7 anni fa | 0 risposte | 0

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Domanda

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 7 anni fa | 1 risposta | 0

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Domanda

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 7 anni fa | 1 risposta | 0

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Domanda

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 7 anni fa | 2 risposte | 0

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Domanda

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 7 anni fa | 1 risposta | 0

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Domanda

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 7 anni fa | 2 risposte | 0

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Domanda

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 7 anni fa | 2 risposte | 0

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Domanda

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)...