Merge pull request #1 from jonathanrocher/ENH/create_initial_notebook

Enh/create initial notebook

Author: jonathanrocher

.gitignore

@@ -1,3 +1,7 @@
+
+# OS
+*.DS_Store
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

README.md

@@ -1,2 +1,14 @@
 # ets_tutorial
-Enthought Tool Suite tutorial
+This repository contains an Enthought Tool Suite tutorial submitted for the 
+SciPy2019 conference.
+
+## Tutorial
+
+## Requirements
+
+traits
+traitsui
+chaco
+openCV
+
+## Contributing

ets_tutorial/0_starting_notebook.ipynb

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+from skimage import data
+from skimage.feature import Cascade
+
+import matplotlib.pyplot as plt
+from matplotlib import patches
+
+# Load the trained file from the module root.
+trained_file = data.lbp_frontal_face_cascade_filename()
+
+# Initialize the detector cascade.
+detector = Cascade(trained_file)
+
+img = data.astronaut()
+
+detected = detector.detect_multi_scale(img=img,
+                                       scale_factor=1.2,
+                                       step_ratio=1,
+                                       min_size=(60, 60),
+                                       max_size=(123, 123))
+
+plt.imshow(img)
+img_desc = plt.gca()
+plt.set_cmap('gray')
+
+for patch in detected:
+
+    img_desc.add_patch(
+        patches.Rectangle(
+            (patch['c'], patch['r']),
+            patch['width'],
+            patch['height'],
+            fill=False,
+            color='r',
+            linewidth=2
+        )
+    )
+
+plt.show()