BasicImageStats.java
442e4691ef3bmaster

BasicImageStats.java
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			import mpicbg.imglib.cursor.Cursor;
			import mpicbg.imglib.image.Image;
			import mpicbg.imglib.type.numeric.RealType;

			public class BasicImageStats {
			/**
			* Calculates the mean of an image.
			*
			* @param img The image to calculate the mean of
			* @return The mean of the image passed
			*/
			public static <T extends RealType<T>> double getImageMean(Image<T> img) {
			double sum = 0;
			Cursor<T> cursor = img.createCursor();
			while (cursor.hasNext()) {
			cursor.fwd();
			T type = cursor.getType();
			sum += type.getRealDouble();
			}
			cursor.close();
			return sum / img.getNumPixels();
			}

			/**
			* Calculates the min of an image.
			*
			* @param img The image to calculate the min of
			* @return The min of the image passed
			*/
			public static <T extends RealType<T>> double getImageMin(Image<T> img) {
			double min = img.createType().getMaxValue();
			Cursor<T> cursor = img.createCursor();
			while (cursor.hasNext()) {
			cursor.fwd();
			T type = cursor.getType();
			double currValue = type.getRealDouble();
			if (currValue < min)
			min = currValue;
			}
			cursor.close();
			return min;
			}

			/**
			* Calculates the max of an image.
			*
			* @param img The image to calculate the max of
			* @return The max of the image passed
			*/
			public static <T extends RealType<T>> double getImageMax(Image<T> img) {
			double max = img.createType().getMinValue();
			Cursor<T> cursor = img.createCursor();
			while (cursor.hasNext()) {
			cursor.fwd();
			T type = cursor.getType();
			double currValue = type.getRealDouble();
			if (currValue > max)
			max = currValue;
			}
			cursor.close();
			return max;
			}
			}