Definition of a color lookup table index.
set_pixel sets pixel values: Colors (set_color, set_rgb, etc.) and greyvalues (set_grey) together are coded into a number, called pixel. This 'pixel' is an index in the color lookup table. It ranges from 0 to 1 in b/w images and 0 to 255 color images with 8 bit planes. It is different from the 'pixel' ("picture element") in image processing. Therefore HORUS distinguishes between pixel and image element (or grayvalue).
The current value can be queried with get_pixel.
Pixel (input_control) |
integer-array -> integer |
color lookup table index. | |
Default value: 128 | |
Range of values: 0 <= Pixel <= 255 |
set_pixel returns TRUE, if the parameter is correct and a window is active. Otherwise an exception is raised.
get_pixel, set_lut, disp_region, disp_image, disp_color