function intensity = GetIntensity(imgPath,binarizeStep,areaMax,areaMin,circularityMax,circularityMin)

	intensity = [];
	if exist(imgPath,'file')
		originalImage = imread(imgPath);
		originalImage = im2double(originalImage);
		adjustImage = medfilt2(originalImage);
		adjustImage(1,1) = adjustImage(2,2);
		adjustImage(1,end) = adjustImage(2,end-1);
		adjustImage(end,1) = adjustImage(end-1,2);
		adjustImage(end,end) = adjustImage(end-1,end-1);
		adjustImage = imadjust(adjustImage,stretchlim(adjustImage,0),[]);
		binaryImage = repmat(false,size(adjustImage));
		for k = 1:binarizeStep
			bin = im2bw(adjustImage,(k-1)/binarizeStep);
			bin = imopen(bin,strel('disk',1));
			props = regionprops(bwlabel(bin),'Area','Perimeter','PixelList');
			for l = 1:length(props)
				if props(l).Area > areaMax || props(l).Area < areaMin || circularity(props(l).Area,props(l).Perimeter) > circularityMax || circularity(props(l).Area,props(l).Perimeter) < circularityMin
					bin(props(l).PixelList(:,2)+(props(l).PixelList(:,1)-1).*size(bin,1)) = false;
				end
			end
			binaryImage = binaryImage | bin;
		end
		props = regionprops(bwlabel(binaryImage),'Centroid','Area','Perimeter','BoundingBox');
		for k = 1:length(props)
			if props(k).Area <= areaMax && props(k).Area >= areaMin && circularity(props(k).Area,props(k).Perimeter) <= circularityMax && circularity(props(k).Area,props(k).Perimeter) >= circularityMin
				originalSignalImage = originalImage(floor(props(k).BoundingBox(2))+1:floor(props(k).BoundingBox(2))+floor(props(k).BoundingBox(4)),floor(props(k).BoundingBox(1))+1:floor(props(k).BoundingBox(1))+floor(props(k).BoundingBox(3)));
				binarySignalImage = binaryImage(floor(props(k).BoundingBox(2))+1:floor(props(k).BoundingBox(2))+floor(props(k).BoundingBox(4)),floor(props(k).BoundingBox(1))+1:floor(props(k).BoundingBox(1))+floor(props(k).BoundingBox(3)));
				onImage = originalSignalImage(logical(binarySignalImage));
				offImage = originalSignalImage(~logical(binarySignalImage));
				back = sum(offImage(:))/sum(binarySignalImage(:)==0);
				if isnan(back)
					back = 0;
				end
				onImage = max(onImage-back,0);
				intensity(end+1) = sum(onImage(:));
			end
		end
	end

end

%	円形度計算関数
function c = circularity(a,l)
	%	引数
	%		a:	面積
	%		l:	円周
	c = 4.*pi.*a./l.^2;
end