Elias Unk
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Awarded to Elias Unk on 09 Oct 2019
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Awarded to Elias Unk on 22 Jul 2018
Feeds
Question
How can i normalise my features vector?
I want to test normalizing my features vector in 2 ways. #1 the sum of the entire normalized matrix is 1 #2 the sum of each ...
mer än 6 år ago | 0 answers | 0
0
answersQuestion
Why don't the rank match the weight for a given index?!
[ranks,weights] = relieff(features_mat',Y,10); figure bar(weights(ranks)) disp(weights) disp(ranks) xlabel('Pre...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How can i change my code to let the name of the feature be in plot instead of the value of the rank?
[ranks,weights] = relieff(features_mat',Y,10); figure bar(weights(ranks))
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How can i visualiize the peeks over the graph?
My code for R peeks extraction: m1=max(ca2)*.40;%to test P=find(ca2>=m1); y_levels=ca2(P); ...
mer än 6 år ago | 0 answers | 0
0
answersQuestion
How can i preprocess heart beat signals to remove the noise?
I want to pre-process heartbeats ECG like baseline wander, power line interference and high frequency noise i did read some sch...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
how can i increase the number of my data?
Basically, i have a 1x200 .mat file, the 200 are the xs (from 0 to 200) and each x has a corresponding y value. The thing i...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How can i add a main line and main column for my table?
my table : 'L1' 'B' 'L2' 'B' 'L3' 'A' 'L4' 'C' 'L5' 'B' 'L6' 'C' 'L7' 'C' 'L8' ...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How can i create many tables of the main one and store them?
my_table = readtable('some.csv') 'L1' 'B' 'L2' 'B' 'L3' 'A' 'L4' 'C' 'L5' 'B' ...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to 'cat' my dataset?
I have .mat files in a folder, each of them is the same size 1x500, what i want to do is to create a table where the first eleme...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How do i read all the files in a folder?
i want something like: folder = path_to_folder an For element in folder: print(element) where i get al...
mer än 6 år ago | 1 answer | 1
1
answerQuestion
How can i make this code snippet a function?
data1 = load('data1.mat') data2 = load('data2.mat') data3 = load('data3.mat') data4 = load('data4.mat') full_v...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How can i get the data from a website?
Let's assume the website's URL is www.something.com that website has file (or folder where i want the files inside), the content...
mer än 6 år ago | 2 answers | 0
2
answersQuestion
How do i know to which graph i'm plotting?
data1 = load('data1.mat') data2 = load('data2.mat') by doing `plot(val(1, :))` i have a graph but I don't know if it corre...
mer än 6 år ago | 3 answers | 0
3
answersQuestion
How to read the text of an image?
Trying to set a text reading algorithm.It should be able to read the words and numbers (handwriting excluded), however, the text...
ungefär 7 år ago | 0 answers | 0
0
answersQuestion
How to calculate the area of an input image?
I want to calculate the area of the FULL binary image the user inputs is it as simple as heightXwidth if so what function does i...
mer än 7 år ago | 3 answers | 0
3
answersQuestion
How to find the value of the pixel with highest value in an image?
Trying to replicate this step :" *B. Maximum Intensity: This is done by finding maximum intensity in gray-scale image by maximiz...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How can i visualize an exact column or row only of a matrix?
let's say i have a 50 by 70 matrix and i want all the values of the column number 29, how can i do that.
mer än 7 år ago | 2 answers | 0
2
answersQuestion
Why is my centroid giving only 1 element per blob using region props?
they should be 2 per blob x and y elements
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to calculate the mean and standard deviation of a ROI(Region of interest) excluding the black background
I need to calculate numerous color and texture features of a region of interest in an image excluding the black background,the c...
mer än 7 år ago | 1 answer | 1
1
answerQuestion
how to better improve my segmentation at the edges to get an image similar to the lesion
As the title says and can be seen in the attached images,i'd like to improve the edges in the segmented pic and that can be done...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
What's the best color model to extract texture features from?
Just like L*a*b is the best color model to extract color features from images because it matches human color perspective,what is...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
IS there an alternative way to store data in matlab other than .mat?
The kind of data i'll be saving is a type double matrix of around 120 lines and columns and prefferrably i'll need to fill each ...
mer än 7 år ago | 2 answers | 0
2
answersQuestion
Why aren't i able to create database to store extracted values?
My goal is to that take a folder's path as input and extract the features of every image and place it in a file to create a matr...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to create database to store extracted values?
I have extracted 110 features of an image and input them in a features vector A: A=[f1,f2,f3,f4....,f110]; How can i cre...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to transform a 1d vector of multiple elements to 1 element?
Let's say i have the following 1 dimensional vector of features extracted from an image: vect=[v1,v2,v3,v4,.....v20]; Ho...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to create a database of feature vectors for images?
I have a database of around 4 classes each consistent of around 50 images.I created a features vector on matlab to extract the f...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to get the mean of a vector ?
Trying to get the average of the 4 values in contrast by M=mean(cbr.contrast); and it's not working,also tried M= mean(cbr) d...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to feature extract from an image with black background(without taking the black background in consideration)?
I was scrolling through some answers of the same issue and got the following C = num2cell(YourImage); C(~YourImage) = {...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
That mind sound like a silly question but how can i resize the image MINIMIZING the blurring and distortion effect?
and yes i am aware of imresize just wondering if a better solution exists that'll reduce the blurring affect when i resize for b...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
How to calculate the contrast energy, entropy of a ROI(Region of interest) of an image using GLCM feature extractactions method?
I need to extract GLCM features like energy entropy contrast among others of the REGION OF INTEREST ONLY excluding the black bac...
mer än 7 år ago | 3 answers | 0
3
answers
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