JPEG vs RAW
Raw data has more access to shadows and exposure that otherwise would be lost through a compressed format images such as a JPEG or PNG. This allows you to have more control of the overall image quality and can amend any incorrect lighting issues you may have had at the time of shooting. This is a common way for professional photographers to work as amending mistakes is easier and the RAW format can be mass edited in software such as Adobe Bridge.
MASS EDITING
Adobe Bridge is a program majorly used for mass photo editing. All images edited will keep the original format and create a new bridge format file. This allows you to access your original images as well as the ones you have edited. Once you have made the changes necessary to your initial image you can then copy your settings to all images in the photoset you are doing. This technique is good for things like time lapses or a collective image set.
PHOTOSHOP SAFELY
When editing an image in Adobe Photoshop, assuming it isn't in the RAW format and is a flat file image such as a JPEG, you must ensure not to do any image editing to the original 'background' piece. Once this has been edited and the image is saved this will create an irreversible step. A better alternative is to create any additional layers and duplicate the original background layer. This leaves the original image intact.
there are a variety of tools such as the magic wand tool, layer mask and so on which can safely edit an image with once these steps are taken.
GREEN SCREEN MAGIC
So I used the skills we were taught in this lesson to create a photo edited image of myself in front of a green screen. I had to remove the background using the magic wand tool or other methods with similar effects before I could go ahead and put my cut out into a different environment. This was my result:
