To get the documentaiton of the API, open the script-fu console, hit the "Browse..." button and enter "invert" in the search box. Then select the function. You will see that the second argument determines if the inversion is done in perceptual or linear space.

On 04/10/18 22:25, HeyJC wrote:

Hello,

I am attempting to update the Saul Goode version of the Create Luminosity Masks Script-Fu script, sg-luminosity-masks. It works fine in GIMP 2.8, but I have just updated to GIMP 2.9.8 to take advantage of the automatic link to darktable for importing RAW images.

When I first ran the script it ended with an error based on the use of deprecated functions in the script. I replaced the function names with the newer versions and the script starts to work but I eventually get the following error message:

Execution error for 'Luminosity Masks (saulgoode)': Error: Invalid number of arguments for gimp-drawable-invert (expected 2 but received 1)

I have looked for a function reference for the gimp functions called in Script-Fu without finding anything. I've also searched for the proper parameters for gimp-drawable-invert but am also coming up blank.

Can anyone help with either a current function reference or the parameters for gimp-drawable-invert. I've attached the original script for reference.

Thank you!

Attachments: * http://www.gimpusers.com/system/attachments/872/original/sg-luminosity-masks.scm

On Tue, 10 Apr 2018 22:25:43 +0200 HeyJC wrote:

Hello,

I am attempting to update the Saul Goode version of the Create Luminosity Masks Script-Fu script, sg-luminosity-masks. It works fine in GIMP 2.8, but I have just updated to GIMP 2.9.8 to take advantage of the automatic link to darktable for importing RAW images.

When I first ran the script it ended with an error based on the use of deprecated functions in the script. I replaced the function names with the newer versions and the script starts to work but I eventually get the following error message:

Execution error for 'Luminosity Masks (saulgoode)': Error: Invalid number of arguments for gimp-drawable-invert (expected 2 but received 1)

I have looked for a function reference for the gimp functions called in Script-Fu without finding anything. I've also searched for the proper parameters for gimp-drawable-invert but am also coming up blank.

Can anyone help with either a current function reference or the parameters for gimp-drawable-invert. I've attached the original script for reference.

I can find the help for "gimp-drawable-invert" just fine in the script-fu console, by searching for "invert" - see http://www.shlomifish.org/Files/files/images/gimp-drawable-invert--to-del.png .

I cannot find the script-fu reference online (why not?)

Thank you!

Attachments:
*
http://www.gimpusers.com/system/attachments/872/original/sg-luminosity-masks.scm

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Hello,

I am attempting to update the Saul Goode version of the Create Luminosity Masks Script-Fu script, sg-luminosity-masks. It works fine in GIMP 2.8, but I have just updated to GIMP 2.9.8 to take advantage of the automatic link to darktable for importing RAW images.

When I first ran the script it ended with an error based on the use of deprecated functions in the script. I replaced the function names with the newer versions and the script starts to work but I eventually get the following error message:

----snip----

You do not say which operating system, I am assuming not Windows.

The original file raises deprecated procedure warnings but they are just warnings.

Start Gimp up with the switch --pdb-compat-mode=on and the warnings are hidden. The script works as usual

screenshot example: Kubuntu 16.04 Gimp 2.9.9 original luminosity script Image imported using nufraw 16 bit

----snip----

You do not say which operating system, I am assuming not Windows.

Just twigged the Gimp 2.9.8 bit. It is most probably Windows

Add the switch --pdb-compat-mode=on **after** the quotes in the windows launcher. Blame Windoze and their use of spaces in paths. Note the space after the quote.

"C:\Program Files\Gimp 2.9\bin\gimp-2.9.exe" --pdb-compat-mode=on

screenshot example:

OK, a look at script-fu console and gimp-drawable-invert adds another parameter

INT32 Whether to invert in linear space (TRUE or FALSE)

So I edited the script to include the value 1 for false. That should be the same as when using Gimp 2.8

A quick try in Win7 Gimp 2.9.8, seems to work ok.

script attached

Still advise adding --pdb-compat-mode=on to the startup.

rich: www.gimp-forum.net

On 04/11/18 14:52, HeyJC wrote:

On Tue, 10 Apr 2018 22:25:43 +0200 HeyJC wrote:
I can find the help for "gimp-drawable-invert" just fine in the script-fu
console, by searching for "invert" - see http://www.shlomifish.org/Files/files/images/gimp-drawable-invert--to-del.png .

I cannot find the script-fu reference online (why not?)

Thank you! Google search didn't get me anything. New to Script-fu

If you are new to this, use Python... easier/more powerful than Script-fu