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  1. a=imread('foreground.jpg');
  2. b=imread('background.jpg');
  3. da=double(a);
  4. db=double(b);
  5. D=imabsdiff(a,b);
  6. r=zeros(240,320);
  7. AR = da(:,:,1);
  8. AG = da(:,:,2);
  9. AB = da(:,:,3);
  10. BR = db(:,:,1);
  11. BG = db(:,:,2);
  12. BB = db(:,:,3);
  13.  
  14. mask = D(:,:,1)>20 & ...
  15.        AR~=0 & AG~=0 & AB~=0 & ...
  16.        BR./AR<4 & BR./AR>1.5 & ...
  17.        BG./AG<2.8 & BG./AG>1.3 & ...
  18.        BB./AB<2.05 & BB./AB>1.14 & ...
  19.        BB./AB<BR./AR & BB./AB<BG./AG & BG./AG<BR./AR & ...
  20.        abs(AR./(AR+AG+AB)-BR./(BR+BG+BB))<0.129 & ...
  21.        abs(AG./(AR+AG+AB)-BG./(BR+BG+BB))<0.028 & ...
  22.        abs(AB./(AR+AG+AB)-BB./(BR+BG+BB))<0.143;
  23. r(mask)=0;
  24. AR(mask) = 255;
  25. AG(mask) = 255;
  26. AB(mask) = 255;
  27.  
  28. h = cat(3,AR,AG,AB);
  29. imshow(h);
  30. im=h-a;
  31. imshow(im);
Success #stdin #stdout #stderr 0.21s 65040KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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error: imread: cannot find foreground.jpg
error: called from:
error:   /usr/share/octave/3.6.2/m/image/imread.m at line 53, column 5
https://ideone.com/2Xbqbk
language:
Octave (octave 4.4.1)
created:
11 years ago
visibility:
public

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