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matlab image processing

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engineere

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hi .i'm a student of 3rd yr electronics .i'm just new to matlab. i want to start with finger print recognition at a simple level . can any one suggest me what are the things one must learn before doing image processing and where to start with.

i have read about fingerprint recognition and just have a idea of segmentation , binarization , histogram etc. .. .but dont know how to implement it .

thank you
 

engineere said:
hi .i'm a student of 3rd yr electronics .i'm just new to matlab. i want to start with finger print recognition at a simple level . can any one suggest me what are the things one must learn before doing image processing and where to start with.

i have read about fingerprint recognition and just have a idea of segmentation , binarization , histogram etc. .. .but dont know how to implement it .

thank you
Click to expand...

Hi matlab based image processing is a vast area to study. You can get necessary help regarding basics of matlab and its operations from the matlab help browser itself. I would say it is the best tutorial and regarding fingerprint recognition after gaining basic knowledge in matlab matrix operations and image processing toolbox via help browser try to understand the algorithm used in your paper for fingerprint recognition as it can be implemented using many algorithms. Then study step by step implementation of equations and functions. That will do. If you need further assistance please post the details of algorithm used will try it.
 
[QUOTI=sarathhari;1237210]Hi matlab based image processing is a vast area to study. You can get necessary help regarding basics of matlab and its operations from the matlab help browser itself. I would say it is the best tutorial and regarding fingerprint recognition after gaining basic knowledge in matlab matrix operations and image processing toolbox via help browser try to understand the algorithm used in your paper for fingerprint recognition as it can be implemented using many algorithms. Then study step by step implementation of equations and functions. That will do. If you need further assistance please post the details of algorithm used will try it.[/QUOTE]

thank you . .I will start.learning things from image processing toolbox . .
 
good...First go through the MATLAB section in help browser it will give you an overview of matrix and arrays and its operations. Then go to the image processing toolbox.
 

hi . .i read about image processing in help browser . . it is a nice place to study . .thank you
 

engineere said:
hi . .i read about image processing in help browser . . it is a nice place to study . .thank you
Click to expand...

Good there is nothing better to study matlab other than its help browser. If my post was helpful kindly mark it as helpful.
 
hi . . .i have one problem while making the ridges thin in the fingerprint.i converted the image(fingerprint) to binary image then i used
the following command:

B1 = bwmorph(B,'skel',Inf);
figure, imshow(B1);

the image is not coming proper. the lines are getting very thin and the whole image is changing.
please suggest me any ither way to do the same.


thank you
 

engineere said:
hi . . .i have one problem while making the ridges thin in the fingerprint.i converted the image(fingerprint) to binary image then i used
the following command:

B1 = bwmorph(B,'skel',Inf);
figure, imshow(B1);

the image is not coming proper. the lines are getting very thin and the whole image is changing.
please suggest me any ither way to do the same.


thank you
Click to expand...

Try using 'thin' instead of skel
 

hi . . . i want to do small projects . . which will give me practice of the same . .. can u please suggest me few ideas on which i can start with
 

engineere said:
hi . . . i want to do small projects . . which will give me practice of the same . .. can u please suggest me few ideas on which i can start with
Click to expand...

just do some image read and try some basic filtering operations erosion dilation etc.
 

sarathhari said:
just do some image read and try some basic filtering operations erosion dilation etc.
Click to expand...

hi . . . i have done extraction of minutia from the fingerprint . .now i'm not knowing how to compare the two image . .i'm confused . plz help me with this . . .thanks
 

engineere said:
hi . . . i have done extraction of minutia from the fingerprint . .now i'm not knowing how to compare the two image . .i'm confused . plz help me with this . . .thanks
Click to expand...
Hi i think you have a database of different fingerprints right....if so first do a training using the images in database do the similar extraction steps for all the images in database and create a feature vector. Then do the testing section with the image which you want to check. Find its feature then you can make a match.
 

sarathhari said:
Hi i think you have a database of different fingerprints right....if so first do a training using the images in database do the similar extraction steps for all the images in database and create a feature vector. Then do the testing section with the image which you want to check. Find its feature then you can make a match.
Click to expand...

Thanks . .what is feature vector? I didn't understand that thing . . . And which function I need to use to compare two images?
 

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