how to find regionprops max(area) ind?

if true
  clear all;
clc;
img = imread('40.jpg');
tic
I = rgb2hsv(img);

channel1Min = 0.956; channel1Max = 0.006;

channel2Min = 0.594; channel2Max = 0.886;

channel3Min = 0.529; channel3Max = 0.780;

sliderBW = (I(:,:,1) >= channel1Min ) | (I(:,:,1) <= channel1Max) &(I(:,:,2) >= channel2Min ) & (I(:,:,2) <= channel2Max) & (I(:,:,3) >= channel3Min ) & (I(:,:,3) <= channel3Max); BW = sliderBW; bw3 = areaimg(BW); bw3 = ratioimg(bw3); imshow(bw3); S = regionprops(bw3,'BoundingBox','Area'); BW_2 = imcrop(img,[S.BoundingBox(1,:)]); end

i have a problem that is If the noise in my image is not filtered clean then the regionprops show Two or more struct then It will show an error so how to use one ind to replace imcrop(img,[S.BoundingBox(1,:)]);

[tsai kai shung]

if true
  clear all;
clc;
img = imread('40.jpg');
tic
I = rgb2hsv(img);

channel1Min = 0.956; channel1Max = 0.006;

channel2Min = 0.594; channel2Max = 0.886;

channel3Min = 0.529; channel3Max = 0.780;

sliderBW = (I(:,:,1) >= channel1Min ) | (I(:,:,1) <= channel1Max) &(I(:,:,2) >= channel2Min ) & (I(:,:,2) <= channel2Max) & (I(:,:,3) >= channel3Min ) & (I(:,:,3) <= channel3Max);

BW = sliderBW;

bw3 = areaimg(BW);

bw3 = ratioimg(bw3); imshow(bw3);

S = regionprops(bw3,'BoundingBox','Area');

BW_2 = imcrop(img,[S.BoundingBox(1,:)]);

end

Answer 1

[tsai kai shung]

this is my crop image