Changing the look-up-table (lut).
::set_lut_style changes the look-up-table (lut) of the device displaying the valid output window. It has got three parameters: Hue: Rotation of color space, Hue = 1.9 conforms to a one-time rotation of the color space. No changement: Hue = 0.0 Complement colors: Hue = 0.5 Saturation Changement of saturation, No changement: Saturation = 1.0 Gray value image: Saturation = 0.0 Intensity Changement of intensity, No changement: Intensity = 1.0 Black image: Intensity = 0.0 Changement affects only the part of an look-up-table that is used for diplaying images. The parameter of modification remain until the next call of ::set_lut_style. Calling ::set_lut has got no effect on these parameters.
|
WindowHandle (input_control) |
window -> HTuple.long |
| Window identifier. | |
|
Hue (input_control) |
real -> HTuple.double |
| Modification of color value. | |
| Default value: 0.0 | |
| Typical range of values: 0.0 <= Hue <= 1.0 | |
| Restriction: (0.0 <= Hue) && (Hue <= 1.0) | |
|
Saturation (input_control) |
real -> HTuple.double |
| Modification of saturation. | |
| Default value: 1.5 | |
| Typical range of values: 0.0 <= Saturation | |
| Restriction: 0.0 <= Saturation | |
|
Intensity (input_control) |
real -> HTuple.double |
| Modification of intensity. | |
| Default value: 1.5 | |
| Typical range of values: 0.0 <= Intensity | |
| Restriction: 0.0 <= Intensity | |
read_image(&Image,"affe") ;
set_lut(WindowHandle,"color") ;
do{
get_mbutton(WindowHandle,&Row,&Column,&Button) ;
Saturation= Row/300.0 ;
Hue = Column/512.0 ;
set_lut_style(WindowHandle,Hue,Saturation,1.0) ;
}
while(Button > 1) ;
::set_lut_style returns H_MSG_TRUE if the window is valid and the parameter is correct. Otherwise an exception handling is raised.
System
