Donald Gray
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Upload & Sell: On
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 p.1 #14 · help changing vehicle colors | |
There are several ways to change colours. Most of us know of at least one way. However, for the benefit of others who don't know, the following describes my way of doing it.
Justin sent me a sample of OD colour. From that, I made a clean OD colour sample image
My work flow as a 4 layer process:
Preparation:
1 - Adjust levels of original
2 - make duplicate layer
3 - promote original to a layer
4 - add adjustment mask to original layer (Hue/Saturation)
5 - insert OD colour image as a layer
6 - create layer mask to duplicate of original
7 - Then set layer order as:
Layer 4 (top) = duplicate of original
Layer 3 = OD Colour image layer
Layer 2 = Hue/Saturation Mask
Layer 1 = Original
8 - Getting the right colour:
9 - Set layer 4 to be invisible and layer 3 to be visible
10 - Drag OD colour layer to the edge of an average density portion of the original
11 - Select hue/saturation adjustment mask and tweak Hue and Lightness to match the colour and density of the OD colour. Once happy, proceed to next step.
12 - Make layer 3 (OD Colour layer) invisible and then layer 4 (top layer) to visible
13 - (Important) click in the MASK portion of the top layer to ensure that it is selected.
14 - Select the paint brush from the Tools Pallet. You should see that the colour indicators at the bottom of the tools pallet are black & white. Select black.
15 - (The fun bit) 'Paint' black in the areas where you want the new colour to show.
Tips:
Take your time, this must not be rushed to to a proper job.
You will need to change the brush sizes and the softness of the brush from time to time..
In tight areas zoom in to 200~300% Never work at less than 100%
If you make a mistake, just change the brush colour to white and 'paint' over the mistake.
Remember: With the mask selected, painting black in the image makes that portion transparent so that the layer/s below show through. Painting white restores the image back to what it was...
Learning to use masks is a non destructive way of dramatically changing an image like these. You can always select any mask in the set and re-adjust your work if needs be.
Have fun... I did & Thanks to Justin for letting me have a go on the large originals 
EDIT: Save your work often and in a format that will preserve layers. (I use *.psd). Precision masking is a time consuming job. It is heartbreaking to spend an hour or more only to loose the lot because of a power cut/glitch et al...
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the guy is trying to get it passed through the states' antique plate deal.
