Hi all,
Do anyone of u know how to write the codes for horizontal and vertical integral projection in C?
I decide to use this method for automated mouth detection.
Any helps will be apprecated.
Thank you very much
Regards,
Tommy
5  2363  sicarie 4,677
Recognized Expert Moderator Specialist
I don't off the top of my head (probably the bottom either), do you have an algorithm for it?
I am currently doing face recognition.
Automatically detect the face region has been done.
I use Y projection method to extract the mouth region.
Let's say the height of the image which contains face region is 100 pixels.
By doing vertical projection, i will generate a average value of each row in vertical direction. A graph like sine wave can be generated using EXCEL.
Each minimum in the graph represent eyebrows, eyes, nose and mouth.
There are 3 maximum in between those minimum. My problem is how to write program to auto choosing the area(distance) of the last minimum(mouth).
So that the mouth region in the image will be extracted automatically.
Any idea guys? Thank you very much.
Regards,
Tommy
Can you please elaborate more? I can't get you.
Thanks.
Regards,
Tommy
Hi all,
Now i hava a program to detect the minima that i want sort like:
HB_min[60]=56;
HB_min[80]=66;
HB_min[87]=70;
/* 60, 80, 87 are define as Y */
Now my problem is how to write a program to auto choose the smallest and largest Y without knowing how many minima have been detected. This is because the smallest Y can be the Y_min for the mouth region.
Any idea?
Thank you very much.
Regards,
Tommy
sicarie 4,677
Recognized Expert Moderator Specialist
Hi all,
Now i hava a program to detect the minima that i want sort like:
HB_min[60]=56;
HB_min[80]=66;
HB_min[87]=70;
/* 60, 80, 87 are define as Y */
Now my problem is how to write a program to auto choose the smallest and largest Y without knowing how many minima have been detected. This is because the smallest Y can be the Y_min for the mouth region.
Any idea?
Thank you very much.
Regards,
Tommy
I'm not sure how 3 things can be declared as a single Y, but I would recommend an if statement to iterate through all your values and compare each to the one before it. You can return whichever is smaller.
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