Function opencv::core::lut

source · 
pub fn lut(
    src: &impl ToInputArray,
    lut: &impl ToInputArray,
    dst: &mut impl ToOutputArray
) -> Result<()>
Expand description

Performs a look-up table transform of an array.

The function LUT fills the output array with values from the look-up table. Indices of the entries are taken from the input array. That is, the function processes each element of src as follows: block formula where block formula

§Parameters

  • src: input array of 8-bit elements.
  • lut: 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.
  • dst: output array of the same size and number of channels as src, and the same depth as lut.

§See also

convertScaleAbs, Mat::convertTo