Sharper image digital photo keychain driver
The bottom slider is Threshold (which controls how dissimilar pixels must be from one another to be sharpened higher settings reduce sharpening, but also noise) and ranges from 0 to 255 levels.Įach image requires a different degree of sharpening, but here are some starting points: for a portrait-Amount 100, Radius 1.0, Threshold 6 for architecture or landscapes-Amount 150, Radius 1.5, Threshold 3 for a high-ISO image-Amount 150, Radius 1.0, Threshold 10. The middle slider is Radius (which controls the width of the edge sharpening) and ranges from 0.1 to 250 pixels. The top slider is Amount (which controls the intensity of sharpening) and ranges from 1% to 500%. The Unsharp Mask control panel provides three sliders, which allow you to adjust the effect. Like saturation, sharpness is something you don’t want to overdo. Unsharp Mask is the preferred tool for many professionals because it allows a lot of control. Our last adjustment is to sharpen the image. Remember to leave yourself some margin 0.5 inches is safe with most printers. Then set the resolution to 300 dpi and the file dimensions appropriate for the print you want. If you want to make a print smaller than your file size, you can check the Resample Image box and choose Bicubic (best for smooth gradients) as the sampling method. Using a file from the Canon EOS Rebel T1i as an example, setting the width to 18 inches (leaving 0.5-inch margins on either side) results in height of 12 inches and resolution of 264.5 dpi. Photographers pairing a recent-model DSLR like the Canon EOS Rebel T1i with a wide-format, 13×19-inch printer like the Canon PIXMA Pro9000 Mark II will find that the camera’s file size perfectly matches the resolution needed for the printer. For larger print sizes, a lower resolution of around 240 dpi still will deliver a terrific print-because the viewing distance for a larger print is typically farther than that for a smaller one. How big should your file be? A safe setting that works great with most printers is 300 dpi.
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You should resize for printing so that you’ll always have your master file at full resolution. Save the file now, before resizing, and then save it again as a copy with a modified name. Using Photoshop’s PSD format lets you keep all of your Adjustment Layers so you can return to the photo later and undo or redo any of these changes. Hopefully, you’ve been saving your adjustments as you go. Use the Clone Stamp or a similar tool to touch up before proceeding. If there are dust spots or other blemishes you want to remove, this is a good point in the process to do it.