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Changing a colour

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  #1  
Old 10-01-2012, 07:52 PM
Ricardo Ricardo is offline
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Changing a colour

Hi guys. Could you please give me some advice on how to change the colour of this red flannel to a beige (or any other colour) colour. Thanks in advance.
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Old 10-01-2012, 08:03 PM
Ricardo Ricardo is offline
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Re: Changing a colour

Sorry forgot to attach the pic. Here you go.....
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  #3  
Old 10-01-2012, 10:01 PM
Wolfman Wolfman is offline
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Re: Changing a colour

Make a duplicate layer and open hue & saturation and pick the color red in the drop down where it says master.... then take the + eye dropper and click on various parts of the red cloth until you have sampled enough.... then slide the hue slider until you get the desired color.... in thi case dark beige as you asked.
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Old 10-01-2012, 11:39 PM
Ricardo Ricardo is offline
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Re: Changing a colour

Thanks Wolfman. That seems to work really well. Especially after applying a bit of Sat and brightness variation. I've tried to make them white as well but this method doesn't seem to work as well. It goes a grey colour. What would you recommend for turning the flannel white (but keeping the detail)?
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Old 10-02-2012, 04:16 AM
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crazyfly1 crazyfly1 is offline
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Re: Changing a colour

I'd be curious too. I tried several different ways. Black and white filter was as close as I got and that wasn't even close.
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Old 10-02-2012, 05:41 AM
jklier jklier is offline
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Re: Changing a colour

The best way I have found for changing colors of an object:

1) Have an image of the target color (in this case a beige/brown towel)
2) Sample both a highlight area and a shadow area, and note the colors in HSB mode (you can change the sample color mode in the info panel); preferably use a 5x5 or 11x11 sample area.
3) Create a mask of the area you want to change (the red towel in this case), and apply it to a basic curves layer, do not modify curve, this is just a masking layer.
3) Create a 'lights' luminosity mask and apply it to a hue/sat layer. Set new color samples in the target image - one for highlights and one for shadows. Change samples to HSB mode. Now modify the HSB sliders in the hue/sat layer until the shadows color sample matches your target color shadows sample. The sliders do interact with each other, so it takes a bit of practice. Apply this layer as a clipping mask to the layer applied in step 2.
4) Duplicate the layer from step 3, invert the mask. Modify the slider in the hue/sat until the highlights color sample is matched. Apply as a clipping mask.

Done. I've done this many times, and is the most accurate way to match a new target color in a believable way.
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Old 10-02-2012, 10:52 AM
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Tony W Tony W is offline
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Re: Changing a colour

For this type of colour change I find working in Lab usually gives a good result and often without much in the way of masking required

For the beige towel adjusted the a and b channels to get an acceptable biege shade then adjusted the L curve shape to requirements. Using the blend if sliders brought the background back no masking required

The white towel a little more difficult but similar principle a and b adjusted to near neutral and L adjusted for density and contrast. Blend if options used to bring background back. This still leaves an outline which will need to be dealt with
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  #8  
Old 10-02-2012, 06:19 PM
Ricardo Ricardo is offline
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Re: Changing a colour

I'll give these other methods a go.

Thanks guys. You've all been most helpful.
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Old 10-02-2012, 10:34 PM
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crazyfly1 crazyfly1 is offline
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Re: Changing a colour

Tony, wow, nice job. I hadn't thought about trying LAB. I'll have to give it a go just to see if I can do it.
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  #10  
Old 10-07-2012, 09:41 PM
Ricardo Ricardo is offline
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Re: Changing a colour

Hi Tony,

Could you elaborate more on the method the described. I've never worked in Lab mode before so it's ne w to me. What do you adjust for the a/b/L channels?
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