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Question
Plotting ROC curve
Hai friends, MATLAB provides a function 'plotroc' for plotting ROC curve. How many features (attributes) i can pass to this fun...
plus de 13 ans il y a | 1 réponse | 0
0
réponseQuestion
Gabor filter.
Hai friends, I am trying to implement Gabor filter.What are Lambda,theta,psi,sigma,gamma here ? How can i extract them from ...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Data pre-processing.
Hai all, I have a set of data taken by extracting texture features. I have to use it for classification. Each feature has 4 cla...
plus de 13 ans il y a | 1 réponse | 0
0
réponseQuestion
Classification data pre-processing
Hai, I have a data set having two features. Each feature has 62 elements. These 62 elements are divided into 4 classes. But int...
plus de 13 ans il y a | 1 réponse | 0
0
réponsesvm classification
search for 'svmclassify' on MATLAB help. But the example code given there can be used only for 2-class classification .
plus de 13 ans il y a | 0
Question
Classifiers. How can i draw 3-D plot ?
Hai friends, I am trying to use SVM and Naive Bayes classifiers given in MATLAB for 3-class classification. Can they be used us...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Support Vector Machine. The example is wrong in MATLAB 2010a help.
The support vector machine code given in MATLAB help is wrong. It can not simply work. How many of you agree ?
plus de 13 ans il y a | 1 réponse | 0
0
réponsehow to calculate the processing time for the simulation
yes. You can tic and toc functions for that. for example, tic %event starts here . . some instructions . . . toc % ...
presque 14 ans il y a | 1
Question
Support Vector Machine. Help please.
*Hai...I wanted to use SVM classifier code given in MATLAB. The problem is that the classifier is not giving correct classificat...
presque 14 ans il y a | 1 réponse | 0
0
réponseQuestion
Problem in understanding Bayes Classifier.
Hai friends, i have a code foe Bayes classifier. Even though everything is explained regarding how to give input, i am totally...
presque 14 ans il y a | 1 réponse | 0
0
réponseUsing for loop
hai. you try saving the value of class in an array, so that each time loop runs it will be automatically saved in that.
presque 14 ans il y a | 0
Question
Chart in MATLAB
How to draw chart in MATLAB? i have two variables x and y. I want them to draw in a chart.
presque 14 ans il y a | 1 réponse | 0
1
réponseQuestion
KNN classification
Hai.. I am using KNN classification algorithm. Which distance measure is used by default when i use the function 'knnsearch' ...
presque 14 ans il y a | 1 réponse | 0
1
réponseQuestion
k-NN search. What is the difference between these 2-codes ?
{ The program for k-NN search in MATLAB. load fisheriris %inbuilt data set provided in MATLAB. x = meas(:,3:4); gscatt...
presque 14 ans il y a | 1 réponse | 0
1
réponsesuppressing the display of ans
It is not possible. Where there are no arguments MATLAB automatically makes "ans" a variable and assigns value to it. You cant h...
presque 14 ans il y a | 1
find Centre of ball/3D model of picture
k. first crop out the unwanted portion of the image - that is background. Now only the ball remains in the image. now consider ...
presque 14 ans il y a | 0
Question
Plot using scatter3 function.
Hai friends, I have to plot a graph using scatter3 function. i have 3 variables x,y and z with 24 elements in each. I want 3 v...
presque 14 ans il y a | 3 réponses | 0
3
réponsesQuestion
Principle Component Analysis
Friends, I understood explanation given on PCA in help. But i am not able to understand how to select the best features/varia...
presque 14 ans il y a | 1 réponse | 0
1
réponseQuestion
return index of biggest element in a row-matrix.
Friends, I have a row matrix. i have to return the index of the biggest element in the row. how can i do this ? thankq...
presque 14 ans il y a | 1 réponse | 0
1
réponseQuestion
Return coordinate of first nonzero element.
Hai friends, I have a binary image. I want my function return coordinate of the first nonzero value pixel from a selected row. h...
environ 14 ans il y a | 1 réponse | 0
1
réponseQuestion
Return coordinate of a first nonzero value pixel from a matrix of an image.
Hai friends, I have a binary image. I want my function return coordinate of the first nonzero value pixel from a selected row....
environ 14 ans il y a | 1 réponse | 0
1
réponseQuestion
Crop out unwanted part from an image.
Dear friends, I want to crop out extra part of CT Head image. I mean i want my image should have only required part of the imag...
environ 14 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to recostruct ROI on an image and diaplay it?
dear friends, I hav got a set of co ordinates of an ROI. Now i want to reconstruct the ROI on an image and display it. How can ...
environ 14 ans il y a | 3 réponses | 0
3
réponsesHelp me, please. I want a matrix transform averaged and unique in specific col,
may u please elaborate your question? im not getting ur problem...
environ 14 ans il y a | 0
Question
How to save an image displayed ?
Dear friends, i would like to save an image displayed by imshow(I) command in tif format. for example, ifter displaying the ima...
environ 14 ans il y a | 3 réponses | 0
3
réponsesHow do I use IMFILTER to high pass filter an image?
Simple averaging your image can fulfill your need if u are not particular with the pass band.
plus de 14 ans il y a | 0
error using imsubtract
convert them to the same class. both the images shud be in the same format.
plus de 14 ans il y a | 0
Threshold
I dont think u need that much big program. the program below exemplifies ur need. But i this case the pixels below 70 and above...
plus de 14 ans il y a | 0
Subplotting images with different scale
I don think your need has any particular application.
plus de 14 ans il y a | 0
Question
How to append data in excel file ? why my program given below is not working ?
Hi friends, I want to append the data generated by some calculations to the existing excel file. In the program given below, i'...
plus de 14 ans il y a | 1 réponse | 0
