# dee koshy

### VIT University

Followers: 0 Following: 0

Btech ECE ,4th year

doing a project in fingerprint identification system using FPGA.

Professional Interests: VLSI,WIRELESS AND MOBILE COMMUNICATION

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**Feeds**

Question

How can a .mexw32 file be opened?

I have been able to generate a MEX file for my M file(I believe) but i don't know how or where to view it

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

???error: Assignment has more non-singleton rhs dimensions than non-singleton subscripts.

g=fileread ('e:\dfiles\a(3).dat'); f=['e:' filesep 'dataf']; x=size(g,1);y=size(g,2); a=dir(f); data(x,y...

ungefär 12 år ago | 2 answers | 0

### 2

answersQuestion

How can the contents of data files be stored as an array of strings in matlab?

I have a Db (.dat) files that need to be compared inside my code. So I have to store them in some variable first. g=filerea...

ungefär 12 år ago | 2 answers | 0

### 2

answersQuestion

How can i create and process a database in matlab?

I have to save some features of an image into a dat/txt file and then use these files as a database for comparison with an input...

ungefär 12 år ago | 1 answer | 0

### 1

answerQuestion

How can i compare data in multiple files in an m file?

I have a bunch of fingerprint minutia data available as .dat (or .txt) files.I need to perform fingerprint recognition for an in...

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

I want to see the hdl code generated using dsp builder in quartus 2 tool.

I have a simulink model for which the hdl has been generated but i don't know how to view it.

ungefär 12 år ago | 2 answers | 0

### 2

answersI need to perform feature extraction in a fingerprint image using matlab.Any help?

I have to analyse the image to find 'crossing' number in order to locate the ridge endings and bifurications.But i cant figure o...

ungefär 12 år ago | 0

Question

I need to perform feature extraction in a fingerprint image using matlab.Any help?

I have done pre processing of the fingerprint,and obtained upto the thinned image(each ridge is 1 pixel think).The crossing numb...

ungefär 12 år ago | 3 answers | 0

### 3

answersQuestion

Need help translating MATLAB to C

function [normim, mask, maskind] = attemptridgesegment(im, blksze, thresh) im = normalize(im,0,1); fun = ...

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

What sort of noise is filtered out in an image using a filter generated by orientation data and frequency data f an image?

% RIDGEFILTER - enhances fingerprint image via oriented filters % % Function to enhance fingerprint image via oriented filters...

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

Is it possible to get a matlab to C code converter? I have a .m file that is to be used in quartus 2(fpga tool).So I need to generate the C equivalent for the code in hand.

My project is fingerprint identification implementation in fpga.Its a herculean task for me to code the image processing part in...

ungefär 12 år ago | 1 answer | 0

### 1

answerQuestion

I need to find the orientation of a fingerprint.I have a code that uses gaussian filter that I got from mathworks.in but I'm getting a weird error that I cant figure out what to do about.

function [orientim, reliability] = ... ridgeorient(im, gradientsigma, blocksigma, orientsmoothsigma) ...

ungefär 12 år ago | 1 answer | 0

### 1

answerHow do I resolve a syntax error when using BLOCKPROC?

oh Thankyou sooo much! :):)

ungefär 12 år ago | 0

Question

How do I resolve a syntax error when using BLOCKPROC?

function [normim, mask, maskind] = aridgesegment(im, blksze, thresh) im = normalize(im,0,1); % normalise to have zero mean, u...

ungefär 12 år ago | 2 answers | 0

### 2

answersQuestion

I need to find the orientation of a fingerprint.I have a code that uses gaussian filter that I got from mathworks.in but I'm not getting the required results.

function [orientim, reliability] = ... ridgeorient(im, gradientsigma, blocksigma, orientsmoothsigma) ...

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

What is the error in the function fun defined in the code below to find std deviation?

% % Usage: [normim, mask, maskind] = ridgesegment(im, blksze, thresh) % % Arguments: im - Fingerprint image to be s...

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

How can i convert a 3D image to 2D in matlab?

I am using a code that will work only on 2D arrays and I have to convert the current image which is in 3D to 2D.

ungefär 12 år ago | 2 answers | 1

### 2

answersQuestion

Can I get a flow chart of the image preprocessing steps for fingerprint processing?

I have to make the system in simulink and then import this to quartus 2 and implement it on FPGA..

ungefär 12 år ago | 0 answers | 0

### 0

answersQuestion

Subscripted assignment dimension mismatch.???

function [J] = gabor_fn2(I) clc; I=imread('e:\fingerprint3.jpg'); imshow(I); I2 = imcrop(I); figure, imsho...

ungefär 12 år ago | 1 answer | 0

### 1

answerQuestion

Can I have the matlab code for gabor filteration that I can use for edge detection?I have to generate the block in simulink, I have made a code ,but i'm not sure if it gives the correct output.

function [J] = gabor_fn2EDITED (I) clc; % I2 = imcrop(I,[]); m=size(I,1); n=size(I,2); %% Gabor phi = 7*pi/8; theta...

ungefär 12 år ago | 0 answers | 0