Perform the morphological dilation operation on a binary image.
[d] = NARVAL_IP_Dilation(im)
binary matrix.
dilation matrix.
NARVAL_IP_Dilation performs the morphological dilation operation on the binary image im (WIKIPEDIA). The output matrix is stored in d. For each vertex Im(i,j), its direct 1-pixel neighborhood (no diagonal) N=[im(i,j-1:j+1) im(i-1:i+1,j)'] is analysed. d(i,j) is equal to the maximal of im(N).
dt=getdate(); seed=dt(10); rand('seed',seed);//initialization of the random values generator no=4;//quantity of obstacles (rectangle) L=1000;//squared area side hm=100;//minimal height hM=250;//maximal height wm=100;//minimal width wM=250;//maximal width Al=[0 %pi/2 %pi -%pi/2];//available angles for obstacles [Xs,Ys,X,Y,H,W,A]=NARVAL_IP_RectObstacles(no,L,hm,hM,wm,wM);//generation of obstacles [P]=NARVAL_IP_PotentialRot(X,Y,H,W,A,L);//generation of obstacle matrix z=10;//zoom factor o=2;// 1=mean, 2=max, 3=min, 4=median Pz=NARVAL_IP_MRA(P,z,o);//scale modification [Pzx,Pzy]=size(Pz);//image size w1=1;//window index w2=2;//window index scf(w1); clf(w1); grayplot(1:Pzx,1:Pzy,Pz);//graph visualization xset("colormap",graycolormap(128)); scf(w2); clf(w2); [PEz]=NARVAL_IP_Dilation(Pz);//application of NARVAL_IP_Dilation [PEzx,PEzy]=size(PEz);//image size grayplot(1:PEzx,1:PEzy,PEz);//graph visualization xset("colormap",graycolormap(128)); | ![]() | ![]() |
Dr. Foued Melakessou
Research Associate
Interdisciplinary Centre for Security, Reliability and Trust
Room F106
University of Luxembourg
6, rue Coudenhove Kalergi
L-1359 Luxembourg-Kirchberg
E-mail: foued.melakessou@uni.lu
Tel: (+352) 46 66 44 5346