pand

Synopsis

Description

pand performs a bitwise "and" between values of the two inputs im_in1 and im_in2.

For integer images, the "and" operator uses the '&' C operator and is applied on each pixel:

   pixel(im_out) = pixel(im_in1) & pixel(im_in2);

For real image, the "and" operator uses the '*' C operator:

   pixel(im_out) = pixel(im_in1) * pixel(im_in2);

For color or multispectral images, the "and" operator is computed separately on each band.

For graphs, the "and" operator is "*" and it is applied on each node values.

For region maps, the "and" operator is the intersection between regions. The result im_out is a new region map with common regions, giving preference to smaller regions. Common regions are regions at the same location and a label > 0. It is not necessary that the regions have the same label value.

The two inputs must be of the same type.

Inputs

• im_in1: an image, a graph or a region map.
• im_in2: an image, a graph or a region map.

Outputs

• im_out: an object of the same type as im_in1 and im_in2.

Result

Returns SUCCESS or FAILURE.

For region map, returns the new higher label value.

Examples

• Selection of the pixels inside the tangram pieces:

    pbinarization 100 1e30 examples/tangram.pan a.pan
    pand examples/tangram.pan a.pan b.pan
  

See also

C++ prototype