saving, and is a great way of ensuring you are happy with the image before
you commit to masking it out.
This can also help you when sourcing images for a time-sensitive task;
knowing that solid black or white backgrounds can be so easily removed
for previewing will help you identify the images most appropriate for your
use.
Preview of how the elements fit, using only blending modes
Tip 6: Masking
Masking out an image is key to almost all compositing workflows, and is
often the most time-consuming, tedious part. You have two main areas of
masking to choose from when an image needs to be isolated from its
surroundings. Manual masking is the preferred method of most top
graphics professionals: usually this means using the pen tool, brushing in
Quick Mask mode, or using the images channels to create an Alpha Channel