Help in Matlab! URGENT

[Chest]

Hi all,

I'm newbie in image processing. I'm face some problem with discrete consine transform.

1) I want to ask how to find the feature extraction from palmprint gray-scale
image. For instance, how to sliding block or calculate Discrete consine
transform (DCT) of image?

2) And how to find it's DCT of feature?

3) How to plot max value of DCT?

NOTE: All in matlab.

Thanks in advance.

 

[Robinenemy]

Hello

I think it can be done this way

X = imread('pass1.jpg');%ANY TEST IMAGE
X = rgb2gray(X);%CONVERSION TO GRAY
Y = DCT2(X);%DCT PERFORMED
imshow(abs(Y));




Go to workspace and select the variable right click on it to plot whatever type of Graph you want to plot.


**broken link removed**



Regards

Robin

 

[yuna]

Hello,

I am doing palmprint recognition.
May i know how to find the DCT Coefficient for an image?

Thanks.:|

 

[helios]

Hello

I think it can be done this way

X = imread('pass1.jpg');%ANY TEST IMAGE
X = rgb2gray(X);%CONVERSION TO GRAY
Y = DCT2(X);%DCT PERFORMED
imshow(abs(Y));




Go to workspace and select the variable right click on it to plot whatever type of Graph you want to plot.


**broken link removed**



Regards

Robin

that same code can be used
hope its similar application