보정법. Actually, what I want to share is not about 'correcting' shade-lightness-darkness-level or any image adjusment, you can try it yourself based on your taste. This tuto is simply to ADD UNDERTONE (●^―^●)
❀However, it would be a VERY simple tutorial FOR FUN and the result may depend on individual taste❀
Software: Adobe Photoshop/PS ( you can use CS-CS5)
❀ First step:1. Open your pic in PS or simply drag it to Ps workspace
2. Click Image > Adjustment > Curves (Shortcut: Ctrl + M)
from here, you can choose whether you want to brighten up your image using curves, or just skip this step (step 3) if your pic has just the right amount of brightness.
3. Pull the line (curves) upward (make sure you work in RGB channel), you can make either one or two anchor point depending on your will. Picture below shows us two anchor point on the line. the upper one is for highlight and the bottom one affect shadow.
Now it's time to add a warmy undertone to make to pic look warmer (σ・∀・)σ
4. Change the CHANNEL and choose RED. Actually, you chan choose other channel as well too. But in this photo I'm workin' in RED channel =)
5. As shown on the pic below, make TWO anchor point on the line and drag the upper one upward and drag the bottom anchor downward. That's all! Here's the before after pic!
[출처]보정법: 작성자 제이치즈 [근정]♡ ♡ ♡ luuuv u!~