Get the HSI coding of the current color.
::get_hsi returns the output color or grayvalues, respectively, for the window, described in Hue, Saturation and Intensity. ::get_hsi corresponds to the procedure ::get_pixel but returns the entries of the color lookup table instead of its indices. The values returned by ::get_hsi can be set with ::set_hsi.
The values returned by ::get_hsi may be inaccurate due to rounding errors. They do not necessarily match the values set with ::set_hsi exactly (colors are stored in RGB internally).
|
WindowHandle (input_control) |
window -> HTuple.long |
| Window_id. | |
|
Hue (output_control) |
integer-array -> HTuple.long * |
| Hue (color value) of the current color. | |
|
Saturation (output_control) |
integer-array -> HTuple.long * |
| Saturation of the current color. | |
|
Intensity (output_control) |
integer-array -> HTuple.long * |
| Intensity of the current color. | |
::get_hsi returns H_MSG_TRUE, if the window is valid. Otherwise an exception handling is raised.
::set_hsi, ::set_rgb, ::disp_image
::set_hsi, ::set_color, ::set_rgb, ::trans_to_rgb, ::trans_from_rgb
System
