HALCON Reference Manual 10.0.2

Name

write_lutwrite_lutwrite_lutWriteLutWriteLut — Write look-up-table (lut) as file.

Signature

write_lut( : : WindowHandle, FileName : )

write_lutwrite_lutwrite_lutWriteLutWriteLut 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 'FileNameFileNameFileNameFileNamefileName.lut'. It can be read again later with set_lutset_lutset_lutSetLutSetLut.

Attention

write_lutwrite_lutwrite_lutWriteLutWriteLut is only suitable for systems using 256 colors.

Parallelization

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: local (may only be called from the same thread in which the window, model, or tool instance was created).
Processed without parallelization.

Parameters

WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle (input_control) window → (integer)

Window identifier.

FileNameFileNameFileNameFileNamefileName (input_control) filename.write → (string)

File name (of file containing the look-up-table).

Default value: '/tmp/lut' "/tmp/lut" "/tmp/lut" "/tmp/lut" "/tmp/lut"

File extension: .lut

Example (HDevelop)

read_image(Image,'monkey')
disp_image(Image,WindowHandle)
draw_lut(WindowHandle)
write_lut(WindowHandle,'test_lut')

Example (C)

read_image(&Image,"monkey") ;
disp_image(Image,WindowHandle) ;
draw_lut(WindowHandle) ;
write_lut(WindowHandle,"test_lut") ;

Example (HDevelop)

read_image(Image,'monkey')
disp_image(Image,WindowHandle)
draw_lut(WindowHandle)
write_lut(WindowHandle,'test_lut')

Example (HDevelop)

read_image(Image,'monkey')
disp_image(Image,WindowHandle)
draw_lut(WindowHandle)
write_lut(WindowHandle,'test_lut')

Example (HDevelop)

read_image(Image,'monkey')
disp_image(Image,WindowHandle)
draw_lut(WindowHandle)
write_lut(WindowHandle,'test_lut')

Result

write_lutwrite_lutwrite_lutWriteLutWriteLut 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.