Extract color with in region

I want to extract the color of tablets from the strips. i segmented the tablets using bwboundaries. kindly help me to extract the color of each region

Here is my code

[TotalSampleObjNo,L] = bwboundaries(Noise_FreeImg,'noholes'); % Search only for object
imshow(label2rgb(L,@jet,[.5 .5 .5]))
hold on
%disp (length (TotalSampleObjNo));
for k = 2:length(TotalSampleObjNo) % Starts with 1 for all boundries
   boundary = TotalSampleObjNo{k};
   plot(boundary(:,2),boundary(:,1),'w','LineWidth',2)
 end

Answer 1

[Image Analyst]

% Extract your color channels
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Extract mean color in the binary image mask
redMean = redChannel(Noise_FreeImg)
greenMean = greenChannel(Noise_FreeImg)
blueMean = blueChannel(Noise_FreeImg)

[Noor us Saba]

i didnt get how to use these mean value to detect the color of sample tablet.

regionprops give the binary image how we used to extract the color information from the binary image