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Using colour overlay

Aug 23, 2011, 07:19
Post: #1
Using colour overlay
I'm trying to edit an image to make a white railway garriage green. I've managed to change the existing colours to make it flat, and I worked out how to make highlighting by painting which saved a lot of heartbreak, but now the overlay comes through as a really garish colour or obliterates all detail.

What is the best setting to colour something like this?

I'm aware people may need more detail or attached files to answer this, please tell me what I should add...

Andy in Germany
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Aug 23, 2011, 08:39 (This post was last modified: Aug 23, 2011 08:39 by ofnuts.)
Post: #2
RE: Using colour overlay
(Aug 23, 2011 07:19)Andy_in_Germany Wrote:  I'm aware people may need more detail or attached files to answer this, please tell me what I should add...
Attach your file here, and a sample of the general color you're aiming at.

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Aug 23, 2011, 14:04
Post: #3
RE: Using colour overlay
(Aug 23, 2011 08:39)ofnuts Wrote:  
(Aug 23, 2011 07:19)Andy_in_Germany Wrote:  I'm aware people may need more detail or attached files to answer this, please tell me what I should add...
Attach your file here, and a sample of the general color you're aiming at.

   

Here's the image, I'm aiming roughly for Ral 6001 Emerald Green

Strangely the black/yellow cheverons seem to have worked well enough.

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Aug 23, 2011, 16:27
Post: #4
RE: Using colour overlay
My attempt:

[attachment=627]
  • Create selection for the altered area (I used a quickly done path, path to selection, plus feather 1px)
  • Duplicate original image, desaturate, and Colors/Colorify with requested color
  • Move recolored layer below original, and cut out original using selection. Not bad but lacks a bit of 3D
  • Duplicate original, move to top, invert selection and delete (keeps altered area), and set the layer mode to overlay or hard/soft light. Hard light with half transparency looks best (better than image above, which is overlay at full blast)

Full detail in attached XCF.

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Aug 27, 2011, 01:45
Post: #5
RE: Using colour overlay
Many thanks ofnuts. I'll look at is carefully when I'm no supposed to be working and see what happens.


(Aug 23, 2011 16:27)ofnuts Wrote:  My attempt:


  • Create selection for the altered area (I used a quickly done path, path to selection, plus feather 1px)
  • Duplicate original image, desaturate, and Colors/Colorify with requested color
  • Move recolored layer below original, and cut out original using selection. Not bad but lacks a bit of 3D
  • Duplicate original, move to top, invert selection and delete (keeps altered area), and set the layer mode to overlay or hard/soft light. Hard light with half transparency looks best (better than image above, which is overlay at full blast)

Full detail in attached XCF.

Andy in Germany
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Oct 17, 2011, 12:34 (This post was last modified: Oct 17, 2011 12:37 by Andy_in_Germany.)
Post: #6
RE: Using colour overlay
Many thanks Ofnuts. Here's 'repaint 1.1':

[Image: KBRailcarfields.jpg]

The background isn't brilliant, but it'll do. I'll work on version two when I've got time.

I used your method, most of the time, but I got a bit confused now and again. It didn't help that the front and side were different colours and under different lighting conditions so I couldn't just treat them all as one area. Still, I've made a couple of steps for now and I'll keep working on it...

Andy in Germany
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Oct 17, 2011, 13:39
Post: #7
RE: Using colour overlay
Pretty good. If you look for improvements:

1) lower the horizon in the background. The vanishing point you obtain as the intersection of the various horizontals in the carriage should be on the horizon (and vice-versa).

2) The windows (side and rear) still contain the reflection of the railway station buildings Smile

3à There is a slight smear at the front & top of the carriage which is a remnant of the original image.

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