MATLAB: Opening by reconstruction results

image processingImage Processing Toolboximreconstruct

I know the algorithm how it works. For illustration process i want to visualise output of opening by reconstruction in each iteration. in matlab the function just gives the final result obtained after stability is reached.

looking at the fucntion itself with edit imreconstruct, it calls a mex function for processing and there is no way to get individual output from imreconstruct.

Best Answer

No. You'd have to write that code yourself.

Related Solutions

MATLAB: How to perform closing by reconstruction followed by opening by reconstruction

No, you cannot. Notice the multiple imcomplement calls after the imdilate step. These are necessary in the closing by reconstruction to make the mask and marker image fit the required inputs of imreconstruct. These imcomplement calls are not necessary for the opening by reconstruction.

In order to reverse the operations, you would need to take lines 4 through 6 in the code you pasted, and put them above lines 1 through 3, AND rename the variables accordingly.

MATLAB: I want to apply Marker-Controlled Watershed Segmentation on a folder containing .jpg images..So what modifications are required in the following code and I also want to store that results in a folder

path_directory='tomato'; % 'Folder name' 
original_files=dir([path_directory '/*.jpg']); %Note on Image Format 
for k=1:length(original_files)
    filename=[path_directory '/' original_files(k).name]; 
    image_ogi=imread(filename); 
    gray=rgb2gray(image_ogi); 
    gmag=imgradient(gray); 
    L=watershed(gmag); 
    Lrgb=label2rgb(L); 
    se=strel('disk',20); 
    Io=imopen(gray,se); 
    Ie=imerode(gray,se); 
    Iobr=imreconstruct(Ie,gray); 
    Iobrd=imdilate(Iobr,se); 
    Iobrcbr=imreconstruct(imcomplement(Iobrd),imcomplement(Iobr));
    Iobrcbr=imcomplement(Iobrcbr); 
    fgm=imregionalmax(Iobrcbr); 
    I2=labeloverlay(gray,fgm); 
    se2=strel(ones(5,5)); 
    fgm2=imclose(fgm,se2); 
    fgm3=imerode(fgm2,se2);
    fgm4=bwareaopen(fgm3,20); 
    I3=labeloverlay(gray,fgm4);
    bw=imbinarize(Iobrcbr); 
    D=bwdist(bw); 
    DL=watershed(D); 
    bgm=DL==0; 
    gmag2=imimposemin(gmag,bgm | fgm4); 
    L=watershed(gmag2);
    labels=imdilate(L==0,ones(3,3))+2*bgm+3*fgm4;
    I4=labeloverlay(gray,labels); 
    Lrgb=label2rgb(L,'jet','w','shuffle'); 
    himage=imshow(Lrgb); 
    himage.AlphaData=0.3; 
    title('Colored Labels Superimposed Transparently on Original Image')
    destination='C:\Users\TIET\Desktop\tomato_output\im'; 
    imwrite(himage,[destination,num2str(k),'.jpg']); %Change the image formta as per desired image format 
end

Best Answer

Related Solutions

MATLAB: How to perform closing by reconstruction followed by opening by reconstruction

MATLAB: I want to apply Marker-Controlled Watershed Segmentation on a folder containing .jpg images..So what modifications are required in the following code and I also want to store that results in a folder

Related Question