Image imfill 'holes' Dan BoundingBox

J = imread('img3.png');
I = rgb2gray(J);
% imshow(I), title('image original grisé');
[~, threshold] = edge(I, 'sobel');
fudgeFactor = .5;
BWs = edge(I,'sobel', threshold * fudgeFactor);
figure, imshow(BWs), title('binary gradient mask');
se90 = strel('line', 3, 90);
se0 = strel('line', 3, 0);
BWsdil = imdilate(BWs, [se90 se0]);
figure, imshow(BWsdil), title('dilated gradient mask');
BWdfill = imfill(BWsdil, 'holes');
figure, imshow(BWdfill);
title('binary image with filled holes');
BWnobord = imclearborder(BWdfill, 4);
figure, imshow(BWnobord), title('cleared border image');
seD = strel('diamond',1);
BWfinal = imerode(BWnobord,seD);
BWfinal = imerode(BWfinal,seD);
figure, imshow(BWfinal), title('segmented image');
BWoutline = bwperim(BWfinal);
Segout = J;
Segout(BWoutline) = 255;
figure,
imshow(Segout), title('outlined original image');

OK


hold on;
labeledImage =BWoutline; %not needed, image should be already in logical
measurements = regionprops(labeledImage, 'BoundingBox');
for k = 1 : length(measurements)
    thisBB = measurements(k).BoundingBox;
    rectangle('Position',[thisBB(1),thisBB(2),thisBB(3),thisBB(4)],'EdgeColor','b','LineWidth',1 );
end

Jika Ingin Langusng di Crop saja objek yang sudah ditemukan tsb:

grayImage = BWoutline;
% Display the image.
imshow(grayImage);
S = regionprops(grayImage,'BoundingBox','Area');
[MaxArea,MaxIndex] = max(vertcat(S.Area));
imshow(grayImage,'InitialMagnification',20)
%// Highlight the required object
hold on
rectangle('Position',S(MaxIndex).BoundingBox,'LineWidth',2,'EdgeColor','y')
Length = S(MaxIndex).BoundingBox(3);
Height = S(MaxIndex).BoundingBox(4);
% Cropping the image
% Get all rows and columns where the image is nonzero
[nonZeroRows,nonZeroColumns] = find(grayImage);
% Get the cropping parameters
topRow = min(nonZeroRows(:));
bottomRow = max(nonZeroRows(:));
leftColumn = min(nonZeroColumns(:));
rightColumn = max(nonZeroColumns(:));
% Extract a cropped image from the original.
croppedImage = grayImage(topRow:bottomRow, leftColumn:rightColumn);
% Display the original gray scale image.
figure
imshow(croppedImage, []);