[R] compare two fingerprint images

[Charles C. Berry]

On Sat, 3 Apr 2010, Juan Antonio Gil Pascual wrote:

> Hi Bernado
> I need to compare two fingerprint images and let me know if you can do with 
> R. I have used the technique of minutiae but it seems to work better with the 
> cross-correlation and wanted to know if you can do with R.


First run this code:

for (i in 1:1000) cat("

 	Please follow the Posting Guide.

")

And if that didn't help run

 	help.request()

giving forthright answers to the questions.

Then return with commented, minimal, self-contained, reproducible code (as 
you were asked to do).

You might also include some discussion of why the functions and packages 
revealed by the 'Do Your Homework' section of the Posting Guide fall short 
of your needs. Better still illustrate such problems with the code you 
submit here.

HTH,

Chuck


>
> Thank you very much
>
> Juan
>
>
> Bernardo Rangel Tura escribió:
>>  On Fri, 2010-04-02 at 20:52 +0200, Juan Antonio Gil Pascual wrote:
>> 
>> >  Hello
>> >  I wanted to compare two fingerprint images. How do you do with R?.
>> >  Is there a role for cross-correlation of images?
>> > 
>> >  Thanks
>> > 
>> > 
>>
>>  Hi juan,
>>
>>  You was a quite vage in your question, so I don't know exactly what you
>>  need but try this;
>>
>>  require(ReadImages)
>>  x <- read.jpeg(image1)
>>  x1 <- read.jpeg(image2)
>>  table(x1==x)
>> 
>>
>> 
>
> -- 
> =========================================================
> Juan Antonio Gil Pascual
> Prof. Titular de Métodos de Investigación en Educación
> correo: jgil at edu.uned.es
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>
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>
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> and provide commented, minimal, self-contained, reproducible code.
>
>

Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901