Perform a gray value opening on an image.
::gray_opening applies a gray value opening to the input image Image with the structuring element SE. The gray value opening of an image i with a structuring element s is defined as
i -+ s = (i - s) + s ,i.e., an erosion of the image with s followed by a dilation with s (see ::gray_erosion and ::gray_dilation). For the generation of structuring elements, see ::read_gray_se.
|
Image (input_object) |
image(-array) -> Hobject: HImage(Array) ( byte ) |
| Input image. | |
|
SE (input_object) |
image -> Hobject: HImage ( byte ) |
| Structuring element. | |
|
ImageOpening (output_object) |
image(-array) -> Hobject * : HImage(Array) ( byte ) |
| Gray-opened image. | |
::gray_opening returns H_MSG_TRUE if the structuring element is not the empty region. Otherwise, an exception is raised.
::opening, ::gray_dilation, ::gray_erosion
Image filters
