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# Aya Ahmed

### Faculty of Engineering

22 total contributions since 2020

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Question

How can calculate ( MSE , NMSE , Correlation Coefficient ) for the output result of neural network ?
I want to calculate ( Mean Square Error , Normalized Mean Square Error , Correlation Coefficient ) for the output result of neur...

8 months ago | 0 answers | 0

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Question

Please explain training regression
Hi I'm using neural network matlab tool. it's hard to understand training regression, what is it means ? what is the best p...

10 months ago | 0 answers | 0

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Question

Explain error histogram ?
Hi I'm using neural network matlab tool it's hard to understand error histogram with 20bins what is bar means?where is the ...

10 months ago | 1 answer | 0

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answer

Question

whats is that error in matlab?
When I write this code, the matrix that is called (confusion matrix) does not appear to me .... But this shape appears and says ...

10 months ago | 0 answers | 0

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Question

How can the two stages of feature extraction and classification be linked?
i want to make classification [using Multylayer perceptron] to the galaxies images to classify 3 type of galaxies(elliptical, sp...

10 months ago | 0 answers | 0

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Answered
create an XOR GATE using a feed forward neural net
Newman have you reach to the code ?? PLZ help me , i want to make that but i cant

12 months ago | 0

Question

How can i resolving XOR function using Multi Layer Perceptron network with matlab ?
I want to make XOR function using Multi Layer Perceptron network with matlab code ,, I'm at the very beginning of studying neu...

12 months ago | 0 answers | 0

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Question

How can i use multilayer perceptron ( MLP) in classification ?
I want to make classification using MLP to data set of images , and ididnot know how can use MLP , or how can i insert data on i...

12 months ago | 0 answers | 0

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Answered
Can I use PCA effectively on a greyscale image?
Neo can you tell me please .. i want to make feature extraction using PCA ,using matlab code on galaxy grayscale image , I was...

1 year ago | 0

Question

What can i do to make some images with different dimensions to be with standard dimensions ?
I have some images dataset , and this images with different dimentions , and i want to make them standard dimentions ,, what c...

1 year ago | 2 answers | 0

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Question

How can i convert some of images Matrices to be square symmetric Matrices?
Plz help ..How can i convert some of images Matrices to be square symmetric Matrices To apply PCA on them ,, because principal c...

1 year ago | 1 answer | 0

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Question

Iam doing image classification project and i want to use pca for feature extraction ?
i want to make feature extraction to some of galaxy images using PCA using matlab code .. plz help

1 year ago | 0 answers | 0

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Answered
i am doing a face recognition project and i want to use pca for feature extraction..
face_recognition : %%% face recognition by Kalyan Sourav Dash %%% clear all close all clc %%%%%%% provide the data path wh...

1 year ago | 0

Answered
i am doing a face recognition project and i want to use pca for feature extraction..
Face recognition using PCA This program recognizes a face from a database of human faces using PCA. The principal components ar...

1 year ago | 0

Answered
How to use Principal Component Analysis to reduce feature vector size?
Adnan ,, Have you reached the solution ??

1 year ago | 0

Question

How can i make classification using Multilayer Perceptron (MLP) using matlab code on galaxy image ?
please help .. i want to make classification using Multilayer Perceptron (MLP) (ANNs based classifiers) using matlab code on ga...

1 year ago | 0 answers | 0

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Question

How can i make feature extraction using PCA using matlab code on galaxy image ?
Please help me .. i want to make feature extraction using PCA ,using matlab code on galaxy image like that >> I was wonderi...

1 year ago | 0 answers | 0

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Question

How can i calculate the ( area ,... ) automatic for gray scale image using Matlab code ??
How can i calculate the ( (i) area , (ii) centriod , (iii) bounding box , (iv) major axis , (v) minor axis , (vi) eccentric...

1 year ago | 1 answer | 0

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Answered
How can I make a single filter using MATLAB code to get galaxy image to be negative image so that dim parts of the original image are bright, and bright parts are dark?
Thank you very match @Image Analyst ..I just trying to make the image look better . the database EFIGI that Iam use .. from sit...

1 year ago | 0

Question

How can I make a single filter using MATLAB code to get galaxy image to be negative image so that dim parts of the original image are bright, and bright parts are dark?
Two images of the same spiral galaxy are shown in Fig. The left panel shows the familiar image that you would see if you took ...

1 year ago | 2 answers | 1

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Answered
I have designed a edge detection method using morphological operations.
do you have code to .. extract morphological features of galaxy image like (i) area, (ii) centroid, (iii) bounding box, (iv) maj...

1 year ago | 0

Question

How can i make automatic rotation using PCA to set the galaxies oriantation to be horizontal?
Please help me >> How can i make automatic rotation using PCA to set the galaxies oriantation to be horizontal and cropping t...

1 year ago | 2 answers | 1

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