The attachments contain "ipskin.pgm" and "m-004-1.pgm".
"m-004-1.pgm" is the mouth region after opening(3x3) and closing(2x2) and labeling.
"ipskin.pgm" is the raw image. Both of the image in binary format. However, i have changed to .bmp format in order to upload here.
guys, is it possible to do some image processing techniques and obtain only the mouth region at the middle?
I have tried to get the largest connected component but i got the moustache instead of mouth. What terms can i set so that every image will get the lips only and the rest (moustache and small connected component) become black background?

Thank you.

Best regards,
Tommy