laplaciancv

Syntax

R = laplaciancv(handle, depth...)

R = laplaciancv(handle, depth, aperturesize, scale, delta, type)

Inputs

handle

Handle of an image.

Type: integer

depth

Desired depth of the output image, R.

Type: integer

aperturesize

Optional aperture size for the computation of second-derivative filters. Must be a positive and odd integer. Default value is 1.

Type: integer

scale

Optional scale factor. Default value is 1.0, with no scaling applied.

Type: scalar

delta

Optional delta value to be added to R. Default value is 0.0

Type: scalar

type

Optional type specifying the pixel extrapolation method. Default value is 4. Valid values are:

0

Type cv::BORDER_CONSTANT.

1

Type cv::BORDER_REPLICATE

2

Type cv::BORDER_REFLECT

3

Type cv::BORDER_WRAP

4

Type cv::BORDER_DEFAULT - default

16

Type cv::BORDER_ISOLATED

Type: integer

Outputs

R

Handle of image with Laplacian filter applied.

Type: integer

Example

Apply a Laplace filter with default options:

handle = imreadcv('owl.jpg');
depth = 3;
R = laplaciancv(handle, 3);