can't you just use the 'replace colour' option? Sounds self-explanatory to me. However, I think this changes one shade of colour so there will more than likely be different shades of the same colour within a given area.
Alternatively, (ive never tried this) go to hue/saturation, use the drop down menu to select reds, greens or whatever and slide the hue thing? That might do the trick.
Alternatively, (ive never tried this) go to hue/saturation, use the drop down menu to select reds, greens or whatever and slide the hue thing? That might do the trick.
Yeps, that works perfectly, although you'll probably find out that there are so many more reds (greens or whatever) hidden in your picture that will change too. But to change a red item on white into a blue item on white, it works just fine (and easy too)
I think that if you upload an image and ask (beg) people to edit it (and relate their editing) you will find that it is a bit more complicated than the replies given so far may lead you to believe. I am not really very good at this and was waiting to read a good answer myself.
I think that if you upload an image and ask (beg) people to edit it (and relate their editing) you will find that it is a bit more complicated than the replies given so far may lead you to believe.
It can be, it really depends on the photo how hard it will be or which tool is best.
An example would help. Different images do better with different techniques. That said, when I need to change a color (say someone's clothing color, etc) I create a new layer, set blending option to Color, then using a paintbrush I paint on the color I want. This method replaces the color, but keeps highlights & shadows intact, but can be sloppy along the edges if you're not careful.
Before changing the color you might want to remove any color casts first. At least do an auto levels/curves/color adjustment first if you are unsure there is one.