Set the gray values of an image to a specified value.
::gen_image_proto sets the gray values of the image ImageCleared to the value Grayval. The input image is not modified. It is merely used to determine the size of the output image.
|
Image (input_object) |
image -> Hobject: HImage |
| Image, whose gray values are to be cleared. | |
|
ImageCleared (output_object) |
image -> Hobject * : HImage |
| Image with constant gray value. | |
|
Grayval (input_control) |
number -> HTuple.double / long |
| Gray value to be used for the output image. | |
| Default value: 0 | |
| Suggested values: 0, 1, 2, 5, 10, 16, 32, 64, 128, 253, 254, 255 | |
::gen_image_proto returns H_MSG_TRUE if all parameters are correct. If necessary, an exception is raised.
::set_grayval, ::paint_gray, ::gen_image_const, ::copy_image
Basic operators
