From 62bcaf722f8c1ebf9adc3d3cb6281155502bf25f Mon Sep 17 00:00:00 2001
From: wajihullahbaig <wajihullahbaig@gmail.com>
Date: Fri, 14 Jun 2019 11:46:05 +0500
Subject: [PATCH 1/4] Fix for IndexError: tuple index out of range

A gray scale image would not be accepted for processing.
---
 gist.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gist.py b/gist.py
index 7ddedd1..67b5409 100644
--- a/gist.py
+++ b/gist.py
@@ -241,8 +241,9 @@ def gist(image_path, orientations = (8,8,8,8), num_blocks = 4, fc_prefilt = 4,
 
     img = Image.open(image_path)
     img = numpy.asarray(img, dtype = float)
-    img = img.mean(axis = 2)
-
+    if img.ndim > 2:
+        img = img.mean(axis = 2)
+    
     if image_size == None:
         image_size = numpy.asarray(img.shape)
 

From c8179449193ca77af641b98e7f6c7348f3e41511 Mon Sep 17 00:00:00 2001
From: wajihullahbaig <wajihullahbaig@gmail.com>
Date: Fri, 14 Jun 2019 11:55:41 +0500
Subject: [PATCH 2/4] Exception on 256x256

 TypeError: slice indices must be integers or None or have an __index__ method
This happens when images are already 256x256
---
 gist.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gist.py b/gist.py
index 67b5409..6a9410b 100644
--- a/gist.py
+++ b/gist.py
@@ -250,8 +250,10 @@ def gist(image_path, orientations = (8,8,8,8), num_blocks = 4, fc_prefilt = 4,
     if numpy.ndim(image_size) == 0:
         image_size = numpy.asarray((image_size, image_size))
 
-    # prepare image
-    img = _im_resize_crop(img, image_size, 'bilinear')
+    # prepare image - Make 256x256
+    if img.shape[0] != 256 and img.shape[1] != 256:
+        img = _im_resize_crop(img, image_size, 'bilinear')
+        
     img = img - img.min()
     img =   255. * img / img.max()
 

From a4cc5b958333861b164051b5550b8ab3e1b1c259 Mon Sep 17 00:00:00 2001
From: wajihullahbaig <wajihullahbaig@gmail.com>
Date: Fri, 14 Jun 2019 12:00:27 +0500
Subject: [PATCH 3/4] TypeError: 'numpy.float64'

Compatibility issue with python 3.5+
---
 gist.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gist.py b/gist.py
index 6a9410b..dff4560 100644
--- a/gist.py
+++ b/gist.py
@@ -41,8 +41,8 @@ def create_gabor(ori, img_size):
     param = numpy.delete(param, 0, 0)    #remove the first empty row
 
     #Frequencies
-    rng_x = range(-img_size[1]/2, img_size[1]/2)
-    rng_y = range(-img_size[0]/2, img_size[0]/2)
+    rng_x = range(-int(img_size[1]/2), int(img_size[1]/2))
+    rng_y = range(-int(img_size[0]/2), int(img_size[0]/2))   
     f_x, f_y = numpy.meshgrid(rng_x, rng_y)
     f_r = numpy.fft.fftshift(numpy.sqrt(numpy.power(f_x, 2) + numpy.power(f_y, 2)))
     f_t = numpy.fft.fftshift(numpy.angle(f_x + complex(0, 1) * f_y))

From 500879b86898770edab18a26ae465cdcb141fbde Mon Sep 17 00:00:00 2001
From: wajihullahbaig <wajihullahbaig@gmail.com>
Date: Fri, 14 Jun 2019 12:23:11 +0500
Subject: [PATCH 4/4] timing function added

python3 compatibility
---
 gist.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gist.py b/gist.py
index dff4560..cff4c4d 100644
--- a/gist.py
+++ b/gist.py
@@ -287,7 +287,11 @@ def test(img_path):
     img = trim(img, 256)
     img.save('_temp.jpg')
 
-    print gist('_temp.jpg')
+    import time
+    ts = time.time()
+    g = gist('_temp.jpg',orientations,number_blocks,fc_prefilt,boundary_extension)
+    print ("processing time:",time.time() - ts)
+    print (g)
 
 
 if __name__ == '__main__':