Adjusting sharpness calc

image_list.py

@@ -392,11 +392,15 @@ def append_sharpness(sqlfile):
 def get_sharpness(filename):
     """  Difference in X, Difference in Y, get smaller diff = smaller sharpness.
         May change if bugs found..  """
-    small_args="convert ( -define jpeg:size=1024x1024 -resize 1024x1024! -colorspace gray XXX -normalize -equalize ) \
+    
+    # Resize to 1024 smaller axis, crop with golden ratio
+    # grayscale and equalize histogram. calculate difference between x neighbor
+    # and y neigbor. smaller difference = less sharp.
+    small_args="convert ( -define jpeg:size=2048x2048 -resize 1024^ -gravity center -crop 62%x62%+0+0 -colorspace gray XXX -equalize ) \
 ( -clone 0 ( -clone 0 -roll +1+0 ) -compose Difference -composite -shave 1x1 ) \
 ( -clone 0 ( -clone 0 -roll +0+1 ) -compose Difference -composite -shave 1x1 ) \
 -delete 0 -compose Darken -composite -format %[fx:mean*1000] info:".split(" ")
-    small_args[8]=filename+'[0]'
+    small_args[12]=filename+'[0]'
     p=subprocess.Popen(small_args,stdout=subprocess.PIPE)
     sharpness, err = p.communicate()
     return float(sharpness.strip())