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Elias Unk


自 2017 起处于活动状态

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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 ...

6 years 前 | 0 个回答 | 0

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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...

6 years 前 | 1 个回答 | 0

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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))

6 years 前 | 1 个回答 | 0

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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); ...

6 years 前 | 0 个回答 | 0

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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...

6 years 前 | 1 个回答 | 0

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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...

6 years 前 | 1 个回答 | 0

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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' ...

6 years 前 | 1 个回答 | 0

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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' ...

6 years 前 | 1 个回答 | 0

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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...

6 years 前 | 1 个回答 | 0

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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...

6 years 前 | 1 个回答 | 1

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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...

6 years 前 | 1 个回答 | 0

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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...

6 years 前 | 2 个回答 | 0

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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...

6 years 前 | 3 个回答 | 0

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提问


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...

7 years 前 | 0 个回答 | 0

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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...

7 years 前 | 3 个回答 | 0

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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...

7 years 前 | 1 个回答 | 0

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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.

7 years 前 | 2 个回答 | 0

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Why is my centroid giving only 1 element per blob using region props?
they should be 2 per blob x and y elements

7 years 前 | 1 个回答 | 0

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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...

7 years 前 | 1 个回答 | 1

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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...

7 years 前 | 1 个回答 | 0

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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...

7 years 前 | 1 个回答 | 0

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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 ...

7 years 前 | 2 个回答 | 0

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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...

7 years 前 | 1 个回答 | 0

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提问


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...

7 years 前 | 1 个回答 | 0

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提问


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...

7 years 前 | 1 个回答 | 0

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提问


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...

7 years 前 | 1 个回答 | 0

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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...

7 years 前 | 1 个回答 | 0

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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) = {...

7 years 前 | 1 个回答 | 0

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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...

7 years 前 | 1 个回答 | 0

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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...

7 years 前 | 3 个回答 | 0

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