Update dependency of this package

setup.py

@@ -55,7 +55,12 @@ setup(
     author='Kentaro Wada',
     author_email='www.kentaro.wada@gmail.com',
     url='https://github.com/mpitid/pylabelme',
-    install_requires=['matplotlib'],
+    install_requires=[
+        'matplotlib',
+        'pillow',
+        'scipy',
+        'scikit-image',
+    ],
     license='GPLv3',
     keywords='Image Annotation, Machine Learning',
     classifiers=[