optimize image blank

4 months ago · 91df5b2407
parent eef2d9d599
commit 91df5b2407
1 changed files with 4 additions and 2 deletions
--- a/lib/image_utils.rb
+++ b/lib/image_utils.rb
@ -4,8 +4,10 @@ module ImageUtils
  module_function

  def blank?(image)
-    min = (0...image.bands).map { |i| image.stats.getpoint(0, i)[0] }
-    max = (0...image.bands).map { |i| image.stats.getpoint(1, i)[0] }
+    stats = image.stats
+
+    min = (0...image.bands).map { |i| stats.getpoint(0, i)[0] }
+    max = (0...image.bands).map { |i| stats.getpoint(1, i)[0] }

    return true if min.all?(255) && max.all?(255)
    return true if min.all?(0) && max.all?(0)