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Replicate transforms, brushstrokes, etc... at higher resolution

Jan 23, 2014, 02:45
Post: #1
Replicate transforms, brushstrokes, etc... at higher resolution
Here's the problem. I'm trying to make a fairly professional piece based on a scan of some real world artwork I did. The image is like 14000x10000. I want to modify it digitally but running the actual transforms and effects on something that big would take way too long. I want to work on a scaled down version to get the right overall effect and then somehow apply the EXACT same effects to the hi-res version. I don't care if it runs all night then. I would like this to apply to brushstrokes, smudge effects, erasures, etc... as well if possible.
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Jan 23, 2014, 22:13
Post: #2
RE: Replicate transforms, brushstrokes, etc... at higher resolution
I think the above reply got mixed up with your thread about repeating a series of actions.
===
Anyways,

What are you going to use the final art for?
-On screen wallpaper?
- On the web?
- Printing.

Depending on your use, you can get away with a far lower resolution and
still preserve quality. Even then making digital edits/processing quicker.

=For testing purposes:=
- scale down your image to 1280 x 720 or 1024 x 768 (if you care for details)
- 640 x 480 (if you want speed edits)

=For print: Keep your original resolution and just adjust the print size.
(seek a tutorial online for printing, general rule of thumb is to keep it
around 300 dpi. If printing at home, you can go a little above or under that.
An 8 x 11 paper is 2400x3300.

=For the final edits on computer:=
What is your screen resolution?
Make it 1-2x the resolution of your screen.
If you have a slow computer, then make it 1/3rd plus of your screen resolution.

For Example.
=Computer use: if you have a screen resolution of 1280 x 720
make your final image size 2560 x 1440 (then make the tested edits)


=Web-use:=
Try to keep it under 1024 x 768 (unless your making wallpapers)
With wallpapers, if saving as a .jpeg, you can make the compression lower in favor of file size. The images should load as quick as possible without sacrificing too much quality.
If its just an image for the web, 640 x 400 & below .png might be ok.
.
.
=Details in your artwork:
For the above resolutions, if you don't have alot of lines/ edges (especially for the computer part)
You can make the resolutions a little lower than you normally would.

For basic details, perceptual clarity IMO begins to degrade anywhere from 1600 x 900 below, or 1280 x 768 or below.

"In order to succeed, your desire for success should be greater than fear of failure." BC
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Jan 24, 2014, 01:41
Post: #3
RE: Replicate transforms, brushstrokes, etc... at higher resolution
I'm thinking this might be printed as a rather large piece of artwork so yes, I want the final version to have all 14,000x10,000 pixels. What I'm asking is basically whether there is some way to do what you can in spreadsheets and wordprocessors where you can click "record macro" and then do various things with the menus, keystrokes, etc. The macro is then recorded as some sort of code in BASIC or Python or whatever. When you rerun the macro, the same exact things happen. Lots of people have really complicated macros in Excel or Libreoffice for example. If the resulting code can be modified I could perhaps simply write a script that would multiply anything using an absolute coordinate by the appropriate value. This could also be used to scale brushes and such up as well.

I'm pretty sure Gimp itself doesn't record macros but perhaps someone has made an extension for it that can.
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Jan 24, 2014, 09:06
Post: #4
RE: Replicate transforms, brushstrokes, etc... at higher resolution
Ah...now its clearer, but the way you made two separate threads was misleading. The other being about macros & this one being about small scale image editing testing. (two different things)

Here is something very close to what you want, the process may be a bit involved though, but persistence could pay off Smile

http://registry.gimp.org/node/25863

With one of the main links leading to:
http://registry.gimp.org/node/25305

*You can decide from reading the above if its shorter method than writing a macro script like Ofnuts previously mentioned.

For a how-to on writing scritp-fu macros check out here:
http://andypo.squidoo.com/gimp-how-to-wr...t-fu-macro

Good luck ^^
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Jan 24, 2014, 11:09
Post: #5
RE: Replicate transforms, brushstrokes, etc... at higher resolution
I don't believe I made two separate threads. I thought my original thread pretty much implied the macro concept. I simply had to spell it out because nobody got the idea.


(Jan 24, 2014 09:06)iForStyle007 Wrote:  Ah...now its clearer, but the way you made two separate threads was misleading. The other being about macros & this one being about small scale image editing testing. (two different things)

Here is something very close to what you want, the process may be a bit involved though, but persistence could pay off Smile

http://registry.gimp.org/node/25863

With one of the main links leading to:
http://registry.gimp.org/node/25305

*You can decide from reading the above if its shorter method than writing a macro script like Ofnuts previously mentioned.

For a how-to on writing scritp-fu macros check out here:
http://andypo.squidoo.com/gimp-how-to-wr...t-fu-macro

Good luck ^^
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