diff --git a/tools/gen_fft.py b/tools/gen_fft.py old mode 100644 new mode 100755 diff --git a/tools/gen_invariant.py b/tools/gen_invariant.py old mode 100644 new mode 100755 diff --git a/tools/gen_rgb2lab.py b/tools/gen_rgb2lab.py old mode 100644 new mode 100755 diff --git a/tools/gen_rgb2rgb.py b/tools/gen_rgb2rgb.py old mode 100644 new mode 100755 diff --git a/tools/gen_rgb2yuv.py b/tools/gen_rgb2yuv.py old mode 100644 new mode 100755