test 1 Practical Photoshop - April 2018 UK | Page 17

2 USE COMPARE
When you’re judging the strength of
sharpening, noise reduction or any
other task that requires scrutiny, it helps
to compare your adjusted image with the
original version to see the improvement. Click
the rectangular before/after view icon in the
bottom-left of the image window to cycle
through diferent views.
3 ZOOM TO 100% 4 RADIUS
It’s best to judge sharpening and noise
reduction at 100% view, as this shows
the actual pixels you’re editing. Double-click
the Zoom tool to jump straight to 100% view
in Camera Raw. To zoom back out and it the
entire image on-screen, double-click the
Hand tool. Sharpening’s Radius setting works in
combination with Amount. Sharpening
works by applying contrast along edges in
the image – the lighter edge will get brighter,
while the darker edge will be darkened more.
Radius determines the distance from the
edge in which that contrast change occurs.