Oil Painting in MATLAB

To obtain a painting-like effect , define a small window matrix of size m by n. Copy the original image pixel values into the matrix and find the histogram of each value. Find the maximum occurring pixel value and replace the current position with the maximum occurrence value.

Original Image

Oil Paint Effect

MATLAB CODE:
A=imread('aish.jpg');

%Define the matrix size of  your convience.
m=5;
n=6;
Image=uint8(zeros([size(A,1)-m,size(A,2)-n,3]));
%Calculate the histogram for each RGB value.
for v=1:3

for i=1:size(A,1)-m
    for j=1:size(A,2)-n
        mymask=A(i:i+m-1,j:j+n-1,v);
        h=zeros(1,256);
        for x=1:(m*n)
            h(mymask(x)+1)=h(mymask(x)+1)+1;
        end
  %Maximum occurring value and the position is obtained
        [maxvalue,pos]=max(h);
        Image(i,j,v)=pos-1;
    end
end
end
figure,imshow(Image);

SEE ALSO : Swirl effect  Cone effect    Glassy effect   Tiling effect   Paint application(coloring)

  Reference:

• Algorithms for Graphics and Image Processing
•  Beyond photography: The Digital Darkroom

FOR FUN:  Create your own Photoshop effects