Friday, December 18, 2009

How do you highlight just one color in a picture with Photoshop?

For example, if you had an all-color picture of a man in a blue shirt, and you wanted to leave his shirt that blue but make the rest of the color black and white...How do you highlight just one color in a picture with Photoshop?
the easy way is to use magic wand to select the shirt, invert the selection then desaturate the picture


you could also use the lasso tool to select the shirt, invert the selection then desaturate the picture


if the shirt is the only blue colour in the entire picture, you could play with the levels by turning up the blue channel and setting the red and green channels to zero


play around until you get the desired effectHow do you highlight just one color in a picture with Photoshop?
What if the shirt is striped? What if the shirt is red and he's standing against a red door?





';magic'; wand is for people who don't know how to use Photoshop. :) Report Abuse

use the lasso tool. that requires practice and a bit of experience. Report Abuse

I have another trick that works great, but there's not enough room to type it. Email me if you're interested - it's easier than trying to select a portion of the image Report Abuse

you can use the magic wand, but remember his shirt is more than just one color, it is several different blues.. So doing what you say can be very difficult
take the lasso tool and circle the area you want to remain in color. i find that the magnetic lasso usually works best in this case. then click ';select'; followed by ';inverse.'; this will select the area around the part you originally selected. then when you remove the color, the part you originally selected will remain in color.





you could also try using the magic wand. when you use this tool, you click on the one color you want to keep. this selects all areas in the image with that color. then you do the whole inverse selection thing and you get the same effect. the only problem with this is sometimes the object is not one solid color and therefore, it will not select the whole item.
It may not be the easiest way, but I would use the pen tool, and ';pen out'; or trace around the shirt. This gives you control on what you want to select and doesn't bring in extra pixels to deal with later.


Click on the Paths palette, make a work path, and select the work path. (make it active)


Then, while the shirt outline is still active, you would click on the layers palette and ';jump'; the selection of the shirt (control+J on PC; command+J on a Mac) to a new layer on top of the photgraph. Then you chould change the bottom layer to black and white but keep the shirt as the original on top.


I'm not a big fan of the magic wand-I do everything with my pen tool; however, you can use it if you choose to go that route.


Good Luck!
Adobe Photoshop-%26gt; Select-%26gt; Color Range-%26gt; Sampled Colors

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