"Print-Worthy" Frame Grabs

I One of the most common requests I hear is the desire to take frame grabs from video and format them for use in print, j Unfortunately, the mediums just don't mix very well. Remember, in order to capture between 24 to 30 frames per second, a small \ image is grabbed. Depending on your format, you end up with around 640x480 square pixels of information. If you condense these ^ pixels to a print resolution of say 300 ppi, you get a print size of about 2x1.5 inches—slightly larger than a postage stamp, but not ^ very useful for most printing jobs.

In Photoshop, we can "up-rez" an image through the Image Size command (lmage>lmage Size). Since this information does not f currently exist, the computer will attempt to interpolate the information. I recommend that you switch pixel dimensions to percent, I and then up-rez exactly 200% using the nearest neighbor interpolation method. Are the results great? No. But they are acceptable for some uses. You should consider taking the image to a service bureau and getting it outputted on a dye-sublimation printer, which produces photolike output from smaller resolution files.

An excellent Photoshop plug-in called Genuine Fractals uses advanced processing to generate high-quality files from low-quality sources. You can find out more information at http://www.ononesoftware.com.

Superblack (aka, Zero Black)

ifi A pure luma value of 0 fQi IRE, which falls below the legal limit of 7.5 IRE for NTSC broadcasting. It is often used for luma-keying, a process of transparency generation that would not tie up a second channel of a switcher (for the matte) in order to perform a key.

Photoshop Secrets

Photoshop Secrets

Are You Frustrated Because Your Graphics Are Not Looking Professional? Have You Been Slaving Over Your Projects, But Find Yourself Not Getting What You Want From Your Generic Graphic Software? Well, youre about to learn some of the secrets and tips to enhance your images, photos and other projects that you are trying to create and make look professional.

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