How can I remove everything except leaves?

[Oveis Hassanijalilian]

the small part of the finger above the leaf is really difficult for me to remove. I tried to remove it based on Hue, but it also remove the brown parts of the leaves.

Answer 1

[Mohammad Abouali]

Use a combination of hsv and activecontour

I=imread('Finger2.png');
hsv=rgb2hsv(I);
m=(hsv(:,:,1)>0.08 & hsv(:,:,1)<0.2);

m2=activecontour(hsv(:,:,1),m,'edge','ContractionBias',-0.1);
imshow(m2)

Movafagh bashi

[Oveis Hassanijalilian]

Thank you for your response. I have a problem with this code. I think it is only usable in Matlab R2014b. I am using R2014a which I believe does not support 'ContractionBias'. I would appreciate if you could respond me. Mamnoon

[Mohammad Abouali]

mmmm.

How about this?

I=imread('Finger2.png');
hsv=rgb2hsv(I);
m=(hsv(:,:,1)>0.08 & hsv(:,:,1)<0.2);
m=imfill(m,'holes');
m=bwmorph(m,'majority',25);
m2=activecontour(hsv(:,:,1),m,'edge','SmoothFactor',1.5);
imshow(m2)

It doesn't work as good as last one though.

Try some dilation and erosion too.

Answer 2

[Deepesh B]

hi

By

imtool

command find exact threshold for leaves color and apply segmentation for that color only finger will be automatically remove d

while fixing threshold use separate threshold for R, G, B with | & conditions