import PIL
import numpy 
import pylab

def loopOverFiles(fileList) : 
	f = open(fileList) 

	indexArray = []
	valueArray = []

	index = 0 
	for fileName in f :
		print fileName 
		val = imageAnalysis(fileName) 
		valueArray.append(val)
		indexArray.append(index)
		index = index +1 


	pylab.plot(indexArray,valueArray)


def imageAnalysis(imageName) :
	print imageName 
	imageName = imageName.strip('\n') 
	f = PIL.Image.open(imageName)  
	d = numpy.reshape(f.getdata(),(f.size[1], f.size[0]))
	print d.sum()
	
	return d.sum()

	
#	d[i1:i2,j1:j2].mean() 
#	bright 256 
#	faint  0.0
#	d[i1:i2,j1:j2].sum()
#	bright (i2-i1)*(j2-j1)*256
#	faint  (i2-i1)*(j2-j1)*0