RobA what a great idea yours. I've tried to do that, but how I get round ones along the edge? Do you know? Thank you so much

After making the question, I thought how I could do it. Thanks Rob for your idea.

Very nice Issabella, love the color combination. This would look cute on a flower basket.

Yes, Esper. You're right.

Molly, I'll put it on a basket, sure.

I've often wondered if a script could be made to:

1. run the "Height Offset by Value" script with a setting of x offset 125 and invert.



2. Decrease the image width by half.



3. And then run the Emboss filter on it with an azimuth value of 30.



So that I can easily get a good 3D visual image of height map images.

But maybe also give 4 different options for viewing angles. Now this first one gives a good lighting effect for the right angle but to get a left angle it would start with the "Height Offset by Value" with a setting of -125 in the x offset and an azimuth of 220 in the emboss filter. Then the top view would by an "Height Offset by Value" of -125 in the y field and an azimuth of 110. And the bottom view would have a "Height Offset by Value" of 125 in the y field and an azimuth of 300. The azimuths are 0+30, 90+30, 180+30 and 270+30. The resulting images are good representations of 3D values that can be zoomed in and out of.



colorizing the result would be cool too.





PegLeg

Very nice PegLeg. It has very good depth.

Request new scripts/plugins
As for layers - only for Paths:
Select the Paths:
- All
- Invert
- Clear
- Reverse

That is very good. Graechan's script should also show up in scriptfu - alpha to logo - frost crystals.


Have you seen the filter in File - Create - Logos - MS ice cube. I have attached it if you don't have it.
Works a treat if you use it on an appropriate text. I used 'ice sticks'

What would "Select all" or "Clear" do? What is the difference between "Invert" and "Reverse" (by the way there is a "reverse-strokes" script in my collection).

I love the look of that flower Issabella.

Pegleg44,
try this script found here: http://gimpchat.com/viewtopic.php?f=9&t=10478

If you shift-click on an eye icon, the click applies to all so its very easy to change the state of all paths, so All/None above are already there. Invert is easy to obtain the same way if there is only one Path that should be the opposite of the others.

Reverse would be a different animal but I don't see the purpose of reordering the paths? According to the doc of the Raise/Lower buttons "The position of a path in the list has no functional significance, so this is simply a convenience to help you keep things organized.". And if you reverse the order, the organization remains the same...

So that leaves us with toggling the visibility of several (but not all) paths together.

is there a script-fu procedure to set white/black/mid gray points in levels?

I want to write a script that does this http://blog.patdavid.net/2011/06/getting-around-in-gimp-color-correction.html

by getting pixel values and comparing RGB values to see which points are whitest/darkest/grayest but can't see a procedure in script-fu for setting these white/black/mid gray points.

Maybe gimp-levels:

but how do you tell it like this is the white point and this is the black point and this is the gray point like the eye dropper that the user uses to choose these points?

Okay so I can set each Red/Green/Blue Channel in levels to black and white points, but what about the middle gray? what's the math behind gamma?

You should double-check things, but I believe gamma can be calculated as follows:

thanks alot!
I'll try it see what i get.

I use Luca Dealfaro's scripts to correct colors. He uses curves, so his code would be a very good example.