How to convert square image to circular image?

[flora]

Hai Friends
Can we able to convert the square image to circular image
Kindly reply me

 

[leekk8]

IMAGE PROCESSING

What you mean by convert square image to circular image? I can't imagine there is square image.

 

[ivar4ever]

Re: IMAGE PROCESSING

do u want to change the border of the image from square to circular? if yes, i think u need to loose some information in the image.

 

[flora]

Re: IMAGE PROCESSING

yes I want to change the border of the image from square to circle with one selected point as center.Loss of information is not a problem.Is there any way?
kindly reply me

 

[ivar4ever]

Re: IMAGE PROCESSING

Not sure how you want to convet the image.
i.e by a code in MATLAB or something else. but it is possible generally.
If you want a specific way, Let me try for it.

h**p://www.manifold.net/doc/7x/create_a_circular_feathered_image.htm

h**p://www.eclipsechaser.com/eclink/astrotec/panconv.htm

 

[flora]

Re: IMAGE PROCESSING

I am doing my project in finger print verification.For finger print matching i have to find the center point and with that point as center i have to draw 6 circles with each circle 0f 20 width pixels.need matlab codings.

 

[ivar4ever]

Re: IMAGE PROCESSING

There are many other ways to do fingerprint verification, u can use content based image retrieval based on histogram approach also. any specific reason to select this method
diretly the codes are available for fingerprint verification on net. try these,

h**p://

h**p://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=4239&objectType=File

hope this helps.

 

[yok]

IMAGE PROCESSING

Friend, you can try the background substration with making in MATLAB Image Processing Toolbox function than perform pixel mapping for ROI. I hope this will help you extract the ROI of fingerprint.

 

[flora]

Re: IMAGE PROCESSING

Thank you very much for ur help