RGB +1/+1/+1

[hirotdk]

I was wondering how I would go about increasing the RGB levels by 1 over the whole image.
For example...my current RBG for one of the colors is 127/45/16. I want it to be 128/46/17 and I want to do that for every color in the image. How would I do that?

[Excruciating]

humm.. good question..
I'm not sure if you can - it depends on the image I guess.
If you can make a clear selection of a solid color you can just go ahead and colorpick and then add +1 to RGB, then fill the selection.
I'm not sure if it adds excactly one.. I guess it would.. But if you use color balance on the image you can add a certain ammount of RGB. I'm just not sure if it adds up that easy..

hah.. I just checked with color balance and it worked
Or not.. It worked with only adding +1 to RGB .. Uhm.. Why would you want to add +1 to RGB anyways or was it just hypothetical?

[hirotdk]

Yeah. I thought I could do it using Balance or Levels. I so far I have been selecting and eyedropping each color, 1up-ing the RGB,a nd filling the selection, but that's getting tiring.

If there isn't a quicker way I think I'll drop the perfectionist box, and pick up a box of carelessness.

EDIT: I am spriting for a game and the sprite sheets color levels are off in a bunch of places. Im just a pefectionist and I would notice if they were even.

[tkgd2007]

I just tried and I think I got something that worked...

Add a Brightness/Contrast adjustment layer and increase the brightness by 1. This seemed to work in the few tests I tried.

If not, are your sprites made of solid colours (without gradients)? If so, you could convert your tilesets to the "Indexed Color" mode using a special colour palette. If you want to try this, I can write up a little tutorial for you...

[Etheryte]

Add a Brightness/Contrast adjustment layer and increase the brightness by 1. This seemed to work in the few tests I tried.

That works, it also leaves you with the chance to modify the outcome later-on in the project.

[Isick]

If you increase every color by 1 you are really just increasing the luminosity by 1 so your easiest method is the Brightness Contrast like tkgd2007 said.