diff options
| -rw-r--r-- | utils/tuning/libtuning/modules/lsc/lsc.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/utils/tuning/libtuning/modules/lsc/lsc.py b/utils/tuning/libtuning/modules/lsc/lsc.py index 344a07a3..e0ca22eb 100644 --- a/utils/tuning/libtuning/modules/lsc/lsc.py +++ b/utils/tuning/libtuning/modules/lsc/lsc.py @@ -59,7 +59,10 @@ class LSC(Module): def _lsc_single_channel(self, channel: np.array, image: lt.Image, green_grid: np.array = None): grid = self._get_grid(channel, image.w, image.h) - grid -= image.blacklevel_16 + # Clamp the values to a small positive, so that the following 1/grid + # doesn't produce negative results. + grid = np.maximum(grid - image.blacklevel_16, 0.1) + if green_grid is None: table = np.reshape(1 / grid, self.sector_shape[::-1]) else: |