Perform a gray value top hat transformation on an image.
gray_tophat applies a gray value top hat transformation to the input image Image with the structuring element SE. The gray value top hat transformation of an image i with a structuring element s is defined as
tophat(i,s) = i - (i -+ s) ,i.e., the difference of the image and its opening with s (see gray_opening). 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. | |
|
ImageTopHat (output_object) |
image(-array) -> object : byte / real |
| Top hat image. | |
gray_tophat returns 2 (H_MSG_TRUE) if the structuring element is not the empty region. Otherwise, an exception is raised.
gray_tophat is reentrant and automatically parallelized (on tuple level).
gray_bothat, top_hat, gray_erosion_rect, sub_image
Foundation
