mmcv.image.lut_transform¶
- mmcv.image.lut_transform(img, lut_table)[source]¶
Transform array by look-up table.
The function lut_transform fills the output array with values from the look-up table. Indices of the entries are taken from the input array.
- Parameters:
img (ndarray) – Image to be transformed.
lut_table (ndarray) – look-up table of 256 elements; in case of multi-channel input array, the table should either have a single channel (in this case the same table is used for all channels) or the same number of channels as in the input array.
- Returns:
The transformed image.
- Return type:
ndarray