Perform a gray value bottom hat transformation on an image.
::gray_bothat applies a gray value bottom hat transformation to the input image Image with the structuring element SE. The gray value bottom hat transformation of an image i with a structuring element s is defined as
bothat(i,s) = (i +- s) - i ,i.e., the difference of the closing of the image with s and the image (see ::gray_closing). 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. | |
|
ImageBotHat (output_object) |
image(-array) -> Hobject * : HImage(Array) ( byte ) |
| Bottom hat image. | |
::gray_bothat returns H_MSG_TRUE if the structuring element is not the empty region. Otherwise, an exception is raised.
::gray_tophat, ::top_hat, ::gray_erosion_rect, ::sub_image
Image filters
