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) -> object : byte / real |
| Input image. | |
|
SE (input_object) |
image -> object : byte |
| Structuring element. | |
|
ImageOpening (output_object) |
image(-array) -> object : byte / real |
| Gray-opened image. | |
gray_opening returns 2 (H_MSG_TRUE) if the structuring element is not the empty region. Otherwise, an exception is raised.
gray_opening is reentrant and automatically parallelized (on tuple level).
opening, gray_dilation, gray_erosion
Image filters
