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Photo Retouching "Improving" photos, post-production, correction, etc.

Making selections between two similar colours

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  #11  
Old 05-30-2008, 12:18 AM
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roger_ele roger_ele is offline
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Re: Making selections between two similar colours

As previously mentioned/alluded to. Anything in an adjustment layer/blending mode that increases the difference - play and brainstorm along those lines with what could make the greatest difference and throw it out after making the selection. Lab, flip the a or b. - Pump up saturation, - selective color - curves, etc.... control-click the composite channel when you have it and save as a new alpha channel. Paint out the obvious areas and then along the edges use a brush in overlay blend mode, paint with white on the white side and black on the black side to clean or the edges. I don't mask tons so I might have a step skipped, but when I need to get tricky this is the direction I go in.

Roger
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  #12  
Old 05-31-2008, 06:06 PM
gizmo001i gizmo001i is offline
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Re: Making selections between two similar colours

Thanks for all the advice guys, I haven't had time to try them yet, but I will. One way around it I found was to load the raw image and set the sliders to give as much difference between the colours as possible (which is similar to alot of the advice given here). I then make my mask and any changes needed. Once done, I save the photo and then reload it into windows again as a raw file and reset the sliders to give the correct output. However, i will have to give your ideas a go as mine may be a long winded way of doing it. Once again, many thanks.
Ian
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  #13  
Old 05-31-2008, 07:29 PM
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crazyfly1 crazyfly1 is offline
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Re: Making selections between two similar colours

When you load your image from raw hold down the shift key and you will turn load image into load object. That way you load it as a smart object and you can just go back into raw and move the sliders without saving, saves you some work and drive space.
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  #14  
Old 05-31-2008, 11:16 PM
gizmo001i gizmo001i is offline
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Re: Making selections between two similar colours

Here you go guys, here's a couple of pics to give you some idea. These are slightly easier than the others as there isn't so much of her body in them, but they will give you some idea as to what I mean.
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File Type: jpg IMG_9985 (Large).jpg (48.5 KB, 34 views)
File Type: jpg IMG_8730 (Large).jpg (72.9 KB, 37 views)
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  #15  
Old 06-01-2008, 12:25 AM
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Re: Making selections between two similar colours

gizmo001i,
Channel masks is the way to go.
This would need to be cleaned up a bit but I timed it and it was 7 minutes.
The other is a little tougher, it would likely need multiple masks for different parts of the image and the you combine them in calculations.
Anyway, I used the blue channel, made a copy of it, equalize, increase contrast with levels, dodge and burn. Once it is black and whit fill in the inside of her with black and then you have your mask.
If there is an easier way that works with almost no contrast between items to be masked I want to know.
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  #16  
Old 06-01-2008, 11:05 AM
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mistermonday mistermonday is offline
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Re: Making selections between two similar colours

This image looked like it might be the tougher one but it turned out to be just a few minutes. There are a couple of tricks you can use with either the Select > Color Range or Hue Sat Adj layer to make very tight color selections. For this image I used Select Color Range with the tolerance set low and the fuzziness slider set to 0. I did not have time to clean up the hair or her right should but if you add a layer mask and 15 minutes you could refine the whispy hair - or some prefer to remove it an smooth out the hair line.
Regards, Murray
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File Type: jpg Gizmo1 MM SCR.jpg (157.5 KB, 21 views)

Last edited by mistermonday; 06-01-2008 at 11:18 AM.
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  #17  
Old 06-01-2008, 02:27 PM
smak smak is offline
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Re: Making selections between two similar colours

Search around for channel masking. This is a quick try using the green channel and levels, finishing mask painting black and white
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