write_lut — Write look-up-table (lut) as file.
write_lut saves the look-up-table (resp. the part of it that is relevant for displaying image gray values) of the valid output window into a file named 'FileName.lut'. It can be read again later with set_lut.
write_lut is only suitable for systems using 256 colors.
File name (of file containing the look-up-table).
Default value: '/tmp/lut'
File extension: .lut
read_image(Image,'monkey') dev_display(Image) draw_lut(WindowHandle) write_lut(WindowHandle,'test_lut')
write_lut returns 2 (H_MSG_TRUE) if the window with the required properties (256 colors) is valid and the parameter (file name) is correct. Otherwise an exception is raised.
set_lut, set_pixel, get_pixel