Nithya SIvasamy
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Accept 5 answers given by other contributors
Awarded to Nithya SIvasamy on 20 Sep 2017
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Matlab code for adding Gaussian noise of 30 db
To an image I want to add the Gaussian noise of 5db to 50 db.Tried with the following code. But in the output image display,the ...
fast 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
What is the need of calculating mean,variance for an image
What is the need of calculating mean,variance for an image
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
From 11x11 and 15x15 matrix,how to get the pixel values present in 15 degree and 30 degree
Is there any builtin function to get the values present in these angles.
fast 7 Jahre vor | 0 Antworten | 0
0
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I am having an image I want to rotate by 30,45 and 90 degree
If I use imrotate(),it enlarges the size of the image .Without enlarging the size of the image,the image has to be rotated in 30...
etwa 7 Jahre vor | 1 Antwort | 0
1
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How to calculate the true Positive,true negative,false positive and false negative?
I am working with image retrieval.I have 10000 images in the dataset.The exact number of images to be retrieved for the input im...
etwa 7 Jahre vor | 0 Antworten | 1
0
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How to test the neural network with new data?
Using nprtool Created a neural network and the script generated is, % Train the Network [net,tr] = train(net,inputs,targets); ...
etwa 7 Jahre vor | 0 Antworten | 1
0
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With what parameters we can identify whether the neural network is properly trained or not
I am new to neural networks.I have created & trained the neural network using nprtool in matlab.I am getting a network,but doesn...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Getting the similar Mean for all images of a histogram
When I have calculated the mean of the histogram ,always getting one. The input image is of uint 16 datatype. I m multiplying...
mehr als 7 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to draw the ROC curve
I have used Euclidean Distance metric as a classifier.I want to know to draw the ROC curve
mehr als 7 Jahre vor | 0 Antworten | 0
0
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I Want to perform element wise matrix multiplication
I have used the following code but getting an error message I1=imread('abc.gif'); a=I1(1:3,1:3); b=[-3 4 5;6 -7 1;-2 ...
mehr als 7 Jahre vor | 2 Antworten | 0
2
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I am using Matlab 2013 version ,I wish to upgrade to Matlab 2015 version?what is the procedure for doing this.
In Mathworks for free trial version Can i Get the Matlab 2015 version for 32-bit operating system.
mehr als 7 Jahre vor | 0 Antworten | 0
0
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When an logarithmic transform can be applied to an image
i am using the below statement for logarithmic transform. z(x,y)=c.*log10(1+m); How to identify the value of C in the above...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to get a single series in legend when using plot() and interp1()
yValues = interp1(E,QPM,xValues,'spline'); plot(E,QPM,'o',xValues,yValues); when i Get a legend in the figure 2 series are t...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to get a smooth curve using plot in matlab
E and QPM are vectors xValues = linspace(min(E),max(E)); yValues = interp1(E,QPM,xValues,'spline'); plot(E,QPM,xV...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Calculation of Accuracy for image retrieval
Total no of relevant images to be retrieved =20 TP= 8 FP=12 FN=12 TN=500 Acc=(8+500)/532=95% Likewise when TP=0,the accura...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
using imshow how to display the color image
Input_Im=imread('C:\Users\Documents\canvas001-inca-100dpi-00.bmp'); imshow(input_Im(1:128,1:128)); when i use this code,it i...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to plot the precision and recall curve?
The precision and recall values are calculated as per theand from these values how to get the precision and recall curve. R...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
I am in need of Matlab 2013b version to work with dual tree complex wavelet transform
As a free trial how to get it
mehr als 7 Jahre vor | 0 Antworten | 0
0
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download of wavelet toolbox from Matlab 2014
dual tree complex wavelet transform
mehr als 7 Jahre vor | 0 Antworten | 0
0
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WHen i use dddtree() getting an error
When i use dddtree() getting an error.Any toolbox to be added for this.
mehr als 7 Jahre vor | 1 Antwort | 0
1
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downloaded VLfeat toolbox but while extracting the file from ZIp getting error
Downloading of VLfeat toolbox
mehr als 7 Jahre vor | 0 Antworten | 0
0
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To use SIFT Transform any inbuilt function is available.If available in which toolbox SIFT is available
SIFT Transform
fast 8 Jahre vor | 0 Antworten | 0
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To use SIFT Transform any inbuilt function is available.If available in which toolbox SIFT is available
Transform
fast 8 Jahre vor | 1 Antwort | 0
1
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To use Totrolet Transform what inbuilt function and parameters to be used in matlab
I tried but I couldn't get
fast 8 Jahre vor | 2 Antworten | 0
2
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Can I Know how Kirsch edge masks is applied to 3x3 matrix of an image
For eight directions how to apply this.
fast 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
how to plot ROC curve ,given False positive rate and true positive rate
TPR=[0.245 0.355 0.678 0.99 1] FPR=[0.444 0.678 0.789 0.88 1] plotroc(TPR,FPR) when i use use plotroc,the graph displ...
etwa 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
how to plot ROC curve ,given False positive rate and true positive rate
TPR=[0.245 0.355 0.678 0.99 1] FPR=[0.444 0.678 0.789 0.88 1] plotroc(TPR,FPR) when i use use plotroc,the graph displayed is ...
etwa 8 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
To draw the roc curve using FPR and TPR
The false positive rate and true positive rate are in the range between 0 and 1 .But when i use plotroc() i am getting a graph i...
etwa 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to draw ROC curve from true positive rate and false positive rate
I have calculated the True positive rate and false positive rate.But from this how to calculate the labels and scores in perfcur...
mehr als 8 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to draw the scatter plot for mean and Standard deviation of an image
The image is divided into 12 .The mean and standard deviation of all 12 images is identified.I want to draw the scatter plot for...
mehr als 8 Jahre vor | 2 Antworten | 0
2
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