Digital editing 101 (basics)

I was just thinking, now and then , I need a little review of the basics of Digital editing, I know a bit about it but I;m not an expert yet, I still learning, I ran into something, I found intewresting want to posted on my personal blog, perhaps share with some one who will find it interested as well.

To start you need first thing to do is make sure you have a capable software.
There few available out there such Adobe Lightroom, Adobe Photoshop there al so couple free ones: Picasa by Google is one the other one is Gimp

Working with Layers

Understanding Layers
What is a layer?

A layer is simply one image stacked on top of another.
How to merge layers
Merging layers can be very powerful.

A-Setting background
unlooking te background is an important step.
The background cannot be moved unless it is redefined as a layer.
Double click on it, photoshop will tries to named layer 0

Once the background is redefined as a layer, not only can you set layers below it, you can also acheive transparency through it. Normally, with a background, if you erase the background, or increase the canvas size, what shows through is the background color on the color palette, whatever that maybe. (very important to remember this)

B-Merging down

To combine two layers into one.
Merge down
Mergedown: combine two layers of the adjustments. (very hard to separe them)