Remove white edges to keep image size

A2/orb.py

@@ -86,9 +86,9 @@ class ORB(object):
         X = np.array([list(x) for x in key_points])
 
         centers, labels = self.find_clusters(X, self.k)
-        plt.scatter(X[:, 0], X[:, 1], marker='.', s=1, c=labels, cmap='viridis')
+        plt.scatter(X[:, 0], X[:, 1], marker='.', s=10, c=labels, cmap='viridis')
 
         plt.scatter(centers[:, 0], centers[:, 1], marker='+', color='red')
         plt.axis('off')
-        plt.savefig(self.edit_path, dpi=300, bbox_inches='tight')
+        plt.savefig(self.edit_path, dpi=300, bbox_inches='tight', pad_inches=0)
         plt.close()