Function opencv::imgproc::convert_maps

pub fn convert_maps(
    map1: &dyn ToInputArray, 
    map2: &dyn ToInputArray, 
    dstmap1: &mut dyn ToOutputArray, 
    dstmap2: &mut dyn ToOutputArray, 
    dstmap1type: i32, 
    nninterpolation: bool
) -> Result<()>

Converts image transformation maps from one representation to another.

The function converts a pair of maps for remap from one representation to another. The following options ( (map1.type(), map2.type()) (dstmap1.type(), dstmap2.type()) ) are supported:

• . This is the most frequently used conversion operation, in which the original floating-point maps (see remap ) are converted to a more compact and much faster fixed-point representation. The first output array contains the rounded coordinates and the second array (created only when nninterpolation=false ) contains indices in the interpolation tables.

• . The same as above but the original maps are stored in one 2-channel matrix.

• Reverse conversion. Obviously, the reconstructed floating-point maps will not be exactly the same as the originals.

Parameters

• map1: The first input map of type CV_16SC2, CV_32FC1, or CV_32FC2 .
• map2: The second input map of type CV_16UC1, CV_32FC1, or none (empty matrix), respectively.
• dstmap1: The first output map that has the type dstmap1type and the same size as src .
• dstmap2: The second output map.
• dstmap1type: Type of the first output map that should be CV_16SC2, CV_32FC1, or CV_32FC2 .
• nninterpolation: Flag indicating whether the fixed-point maps are used for the nearest-neighbor or for a more complex interpolation.

See also

remap, undistort, initUndistortRectifyMap

C++ default parameters

• nninterpolation: false