pblend

Synopsis

Description

pblend computes the alpha blending of the two inputs im_in1 and im_in2.

If im_in1 and im_in2 are images then the new image im_out is built with the blending of each pixels:

pixel(im_out) = alpha*pixel(im_in1) + (1-alpha)*pixel(im_in2);

The two inputs must be of the same type.

The output image im_out is of the same type as inputs.

For color or multispectral image, the blending is computed separately on each band.

If im_in1 and im_in2 are graphs then the new graph im_out is built with the blending of each node values.

Parameters

• alpha is a real value between [0..1] which represents the ratio of im_in1.

Inputs

• im_in1: an image or a graph.
• im_in2: an object of the same type as im_in1.

Outputs

• im_out: an object of the same type as inputs.

Result

Returns SUCCESS or FAILURE.

Examples

Performs a mean operation between a.pan and b.pan:

   pblend 0.5 a.pan b.pan c.pan

See also

C++ prototype

Version française

Mélange d'images ou de graphes.