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Balaji M. Sontakke


Dr. BAMU Aurangabad

50 total contributions since 2016

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Question


Following is the error in my program while calculating ROC
I have attached my program files Index exceeds matrix dimensions. Error in ROC (line 16) selfVerification(i) =...

4 days ago | 0 answers | 0

0

answers

Question


How to find the threshold value from KNN classification
Hi all, I want to ask that I have total 100 classes [1,2,3,4,5......100] One class having 12 samples from which 8 sample...

10 days ago | 0 answers | 0

0

answers

Question


Following is the error in my program
Index exceeds matrix dimensions. Error in threshold (line 13) correctMinimum(j) = allMinimum(i); Error in kn...

10 days ago | 0 answers | 0

0

answers

Question


sir, can you please help me to convert this python code into matlab
#false positive rate,fpr= FP/(TN+FP) OR fpr=1-specificty, tpr=sensitivity y_pred_knn_p =knn.predict_proba(X_test)[:,1] ...

21 days ago | 1 answer | 0

1

answer

Question


Sir, how to calculate EER equal error rate for the following data
respected sir, I have used following formula for calculating false acceptance rate FAR and FRR FAR=FP/(FP+TN) FR...

30 days ago | 1 answer | 0

1

answer

Question


what should be the program for following output?
Sr.no Threshold TP TN FP FN FAR FRR GAR 1 0 0 100 0 100 0 1 0 2 0.1 19 100 0 81 0 0.81 19 3 0.15 62 99 1 38 0.01 0.38...

1 month ago | 1 answer | 0

1

answer

Question


Error in following code while converting cell to matrix
Error in following code Error using cell2mat (line 52) CELL2MAT does not support cell arrays containing cell arrays or obje...

4 months ago | 2 answers | 0

2

answers

Question


Sir, am having the four mat files, which of two contains features from minutie and other two contains feature from invarient moment, can i make fusion of those features by combining it then how?
Sir, am having the four mat files, which of two contains features from minutiae and other two contains feature from invariant mo...

4 months ago | 1 answer | 0

1

answer

Question


How to compute & plot Equal Error Rate (EER) from FAR/FRR values using matlab
I have the following values against FAR/FRR of 20 classes. i want to compute EER rates and then plot in matlab. FPR ...

6 months ago | 0 answers | 0

0

answers

Question


Error in HeatMap, In following code confusion matrix is plotted but i want to visualize the same using a heat map, what is wrong?
Error using HeatMap/set Invalid parameter/value pair arguments. Error in HeatMap (line 392) set(obj, pvPairs{:}...

6 months ago | 0 answers | 0

0

answers

Question


sir, what is required to denoise the attached image, i tried with following code but still some noise is there
clc; close all; %% %roiFolder = 'E:\MATLAB\R2016b\bin\img\PCA\my_PhD_Programs\Jermanfilter\dbROI'; %filePattern = fullfile(m...

6 months ago | 0 answers | 0

0

answers

Question


error in knn classification train accuracy is 96.33% but test accuracy is only 7.33%, is this overfitting problem.
error in knn classification train accuracy is 96.33% but test accuracy is only 7.33%, is this overfitting problem. how to solve ...

6 months ago | 0 answers | 0

0

answers

Question


Error while calling reshape
Following is a cell array having size 1 X 180, is it possible to reshape this cell array size into 6*4, here 6 is column in one ...

6 months ago | 0 answers | 0

0

answers

Question


error in attached program
Index exceeds matrix dimensions. Error in ext_vein (line 381) dist_m = dist2(minutiae(:,1:2), minutiae(:,1:2)); Error...

6 months ago | 1 answer | 0

1

answer

Question


regionprops function retrieving only small vein line instead of total vein pattern
clc; clear all; chart = imread('202.bmp'); chart = gray2rgb(chart); bw = im2bw(imcomplement(rgb2gray(chart))); imsho...

6 months ago | 0 answers | 0

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answers

Question


Not getting correct vein pattern from image after mophological operation
Sir, in attached image is output of some morphological operation but still some unwanted region is present how to remove this. ...

6 months ago | 0 answers | 0

0

answers

Question


which morphological operation is needed for best vein pattern imaging on attached image
sir, I apply some morphological operation but a lot of small wholes are getting and bifurcation of veins not seen in the image

6 months ago | 0 answers | 0

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answers

Question


error while calculating minutie..
I have Binary hand vein image (attached here) of size 60 X 60, i try to extract minutie from this binary image with following pr...

6 months ago | 0 answers | 0

0

answers

Question


error in my program
sir, i want to classify testdata and traindata using knnclassify, I have 8 images per person total 80 images of dorsal hand vein...

6 months ago | 0 answers | 0

0

answers

Question


sir, following is the error in my program, here AUC (area under curve) is 0 0 and OPTROCPT also zero why so this...
clc clear all; c=[]; addpath train; addpath test; mapping=getmapping(8,'u2'); ...

6 months ago | 0 answers | 0

0

answers

Question


sir, following is the error in my code while calculating ROC curve
Error using main_new (line 131) You must pass scores as a vector of floating-point values. %% Dorsa...

7 months ago | 1 answer | 0

1

answer

Question


Sir, following is the matching score of 20 subjects in the form of 0 and 1, how to determine a suitable threshold for matching and how to calculate FAR and FRR with respect to that threshold?
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0...

7 months ago | 0 answers | 0

0

answers

Question


There is some error while calling function fitcknn. I passed parameters like fitcknn(P_train,train_label,'Distance','euclidean','NumNeighbors',5) here size of P_train is 176 X 180 and train_label is 180 1
Error using classreg.learning.FullClassificationRegressionModel.prepareDataCR (line 201) X and Y do not have the same numbe...

7 months ago | 1 answer | 0

1

answer

Question


Sir, after applying radon like featur for hand vein enhancement i want to write image in folder but am not getting how to write it, i have tried by imwrite function but output image is not that i want
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Radon like feature for hand vein enhancement %%%%%%...

7 months ago | 0 answers | 0

0

answers

Question


while using for loop in following function some blank cells are come into output matrix like [ ] [ ] [ ]. I dont understand where i wrong in for loop
function build_db(ICount, JCount) p=0; path = 'E:\MATLAB\R2016b\bin\img\PCA\my_PhD_Programs\minuite\FVC2002\DB1_...

8 months ago | 2 answers | 0

2

answers

Question


following is the error while calculating euclidean distance using pdist2, what should i do ..
testdata = 3×1 cell array [54×6 double] [44×6 double] [44×6 double] >> traindata traindata = 8×...

8 months ago | 1 answer | 0

1

answer

Question


Sir, how to calculate Euclidean distance of two cell array having the size testdata 1 X 30 and traindata 1 X 50 of 10 person (8 images per person)
Sir, how to calculate Euclidean distance of two cell array having the size testdata 1 X 30 and traindata 1 X 50 of 10 person (8...

8 months ago | 1 answer | 0

1

answer

Question


Sir, I have 80 images of 10 persons ( 8 images per person ) , I would like to convert first 3 images to testing and remaning 5 images to training. can I modify following code like this. Please answer me...
function build_db(ICount, JCount) p=0; path = 'E:\MATLAB\R2016b\bin\img\DB1_B\' for i=1:ICount % 10 f...

9 months ago | 0 answers | 0

0

answers

Question


Reading images in matlab
Am using a database which is gathered from 100 persons, 3 images per persons of each of 4 different activities like act,bag,nor...

10 months ago | 1 answer | 0

1

answer

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