write_lut

write_lut ( : : WindowHandle, FileName : )

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.

Attention

write_lut is only suitable for systems using 256 colors.

Parameters

`WindowHandle` (input_control)	window `->` integer
Window identifier.

`FileName` (input_control)	filename `->` string
File name (of file containing the look-up-table).
Default value: '/tmp/lut'

Example

read_image(Image,'affe') 
disp_image(Image,WindowHandle) 
draw_lut(WindowHandle) 
write_lut(WindowHandle,'test_lut').

Result

disp_lut returns 2 (H_MSG_TRUE) if the window with the demanded properties (256 colors) is valid and the parameter (file-name) is correct. It returns 5 (H_MSG_FAIL) if the specified file can't be opened. Otherwise an exception handling is raised.

Parallelization Information

write_lut is reentrant, local, and processed without parallelization.

Possible Predecessors

draw_lut, set_lut

Module

System