Two algorithms to rule them all.

ReSizer 2.0 has two algorithms. Well, it really has four, but only two of them are for creating your final footage. Use Best (Smooth) and Best (Sharp) for making SD into HD or just resizing the footage in general. When do you use one versus the other? That's pretty subjective but we have given a few suggestions below. The No Filtering and Fast options are for your pre-work.

Best (Smooth) quality.

Best (Smooth) is the Quality option that you are going to use most of the time. It just, well, does the best job of resizing. You don't make any adjustments to your footage after Best (Smooth) does its thing. This is the option that you'll generally choose when you have to do a massive upsizing, like scaling your footage by 300% or 700%.

Best (Smooth) tends to look more softened, which is good for upconverting SD to HD if the main subject is people. A softer treatment can look better for people, since people tend to not have as many hard edges as buildings. At least most of us don't. ;-0

Best (Sharp) quality.

Best (Sharp) is your other choice for resizing your footage for output quality. This algorithm is a good option if you are upconverting from SD to HD, depending upon what kind of image you're working with. Best (Sharp) tends to look less softened, which is good for working with footage of hard edged subjects, like buildings. Best (Sharp) is also an option for making a small upscale, like 110% or 150%. In this case, you may want to resize once with Best (Smooth) and once with Best (Sharp), then compare your results.

Another advantage of using Best (Sharp) is the 'Advanced' sliders. These controls allow you to fine-tune the softness and sharpness of your resized image. Once again, beauty is in the eye of the beholder, so you'll want to pay close attention to what the sliders are doing for your image.

No Filtering and Fast quality.

The other two algorithms, 'No Filtering' and 'Fast', are for comping purposes. They let you work fast and smart before you put in time for the true upsizing.

Let's say you have 100 pieces of footage that need to be resized. You don't want to take the processor time to resize them just yet. You use No Filtering to simply scale up the footage and placehold it. The quality of No Filtering is the equivalent of After Effects' scaling function, and it takes very little time to process. This option just does the job so you can do the rest of your job until you're ready to finish that job. Right?

Or you can use Fast quality. This option still is light on processing. But it is enough of an improvement over No Filtering that you'll get a preview of what ReSizer 2.0 can do with your footage.