This script help you extract image files from an APK file. Basic Usage (1) img_extractor.py --ifile <APK file> --ofile <Destination Directory> (2) img_extractor.py --ifile <APK file> --ofile . (3) img_extractor.py --ifile <APK file> --ofile ..

img_extractor.py

#!/usr/bin/python
# This script help you extract image files from an APK file.
# Author : Daehee Han (https://github.com/booknara, @daniel_booknara)
# Date : August 21 2013

# Basic Usage
# (1) img_extractor.py --ifile <APK file> --ofile <Destination Directory>
# (2) img_extractor.py --ifile <APK file> --ofile .
# (3) img_extractor.py --ifile <APK file> --ofile ..

import sys, getopt, os, zipfile, shutil

def main(argv):
	currenDir = os.getcwd()
	parentDir = os.path.normpath(os.path.join(currenDir, ".."))

	try:
		opts, args = getopt.getopt(argv, "hi:o", ["ifile=", "ofile="])
	except getopt.GetoptError as err:
		print str(err)
		usage()
		sys.exit(2)

	inputfile = ''
	outputDir = ''
	wantedFileExtension = ['.png']

	for opt, arg in opts:
		if opt == "-h":
			usage()
			sys.exit()
		elif opt in ("-i", "--ifile"):
			inputfile = arg
		elif opt in ("-o", "--ofile"):
			if arg == ".":
				print "."
				outputDir = currenDir
			elif arg == "..":
				print ".."
				outputDir = parentDir
			else:
				outputDir = arg

		else:
			assert False, "unhandled option"

	(inputfileName, inputfileExtension) = os.path.splitext(inputfile)		
	outputDir = outputDir + '/' + inputfileName
	print
	print "Input file is ", inputfile
	print "Output file is ", outputDir
	print

	if not os.path.exists(outputDir):
		pass
	else:
		shutil.rmtree(outputDir)

	os.makedirs(outputDir)
	print "Making Output directory..."		
	 	

	# Unzip APK file
	print inputfile
	z = zipfile.ZipFile(inputfile, "r")

	fileCount = 0
	for name in z.namelist():
		(dirName, fileName) = os.path.split(name)
		(dummyName, fileExtension) = os.path.splitext(name)
		
		# only wanted files
		if not fileExtension in wantedFileExtension:
			continue

		print fileName
		
		newDir = outputDir + '/' + dirName
		if not os.path.exists(newDir):
			os.makedirs(newDir)
			print "Making directory..."

		if fileName == '':
			# directory
			pass

		else:
			# file
			newFile = newDir + '/' + fileName
			fd = open(newFile, "w")
			fd.write(z.read(name))
			fd.close()
			fileCount = fileCount + 1

	z.close()

	print
	print "%d files are extracted successfully" % fileCount


def usage():
	print 'Usage'
	print '(1) img_extractor.py --ifile <APK file> --ofile <Destination Directory>'
	print '(2) img_extractor.py --ifile <APK file> --ofile .'
	print '(3) img_extractor.py --ifile <APK file> --ofile ..'
	print 'Output <Destination Directory>/<APK file named folder>'

if __name__ == "__main__":
	main(sys.argv[1:])