depurado e funcionando ... aumentei quantidade de filtros usados no Gabor

src/extraction/gabor.py

@@ -66,8 +66,7 @@ class GABOR(Extractor):
 
 
         image_grayscale = ImageUtils.image_grayscale(image, bgr = True)
-        shrink =  (slice(0, None, 3), slice(0, None, 3))
-        image_float = img_as_float(self.image_grayscale)[shrink]
+        image_float = img_as_float(image_grayscale)
 
 
         #Prepare filter bank kernels
@@ -75,10 +74,10 @@ class GABOR(Extractor):
         values = []
         kernels = []
         index = 0
-        for theta in range(4):
-            theta = theta / 4. * np.pi
+        for theta in range(8):
+            theta = theta / 8. * np.pi
             for sigma in (1, 3):
-                for frequency in (0.05, 0.25):
+                for frequency in (0.01, 0.10, 0.25, 0.5,0.9):
                     kernel = np.real(gabor_kernel(frequency, theta=theta,
                                                   sigma_x=sigma, sigma_y=sigma))
                     kernels.append(kernel)