From Photoshop CS A to Z: The Essential Visual Reference Guide

Overview

Hard Light

(See Blending modes )

Healing Brush Histogram

Healing Brush

QUICK KEY

J

This was one of the most exciting features to appear on Photoshop 7.0 and is located on the toolbar where the airbrush tool used to be. The healing brush is a glorified Clone tool and does a fantastic job on some things and makes a hash of others.

I would suggest that until you are familiar with this tool you can always try it first and if it doesn't work, undo the action and switch to the Clone tool.

The reason it's excellent when it works is that it takes the sample from the area you first select, just like the Clone tool, but when you paint over the area you are repairing the sampled pixels are not just laid down. The program looks at what you are cloning over and blends the two. In the photograph of a lime (right) there are a few blemishes.

I've sampled from a lighter area (highlighted in the red circle) knowing that if I tried cloning from here with the Clone tool it would produce a glaringly obvious patch (middle).

When the healing tool is used to sample from the same area it ensures the original pixel color and density are not lost.

If the area to be 'healed' had been a larger area of black then the original pixels would have influenced the result and it wouldn't have done much to cover the blemishes. Overall it's a stunning...

Copyright Peter Bargh 2004 under license agreement with Books24x7

Products & Services
Video Cameras
Video cameras record live-action scenes that are available for viewing via a stored or transmitted video feed. This allows the user to create a permanent and detailed chronicle of events. Video cameras record dozens of pictures (or frames) a second that when viewed in succession, clearly distinguish the translation of an object or person over time.
Low Light Cameras
Low light cameras are a type of video camera with extreme photon sensitivity, and are excellent for recording in situations where only ambient levels of light are available. Common deployments include overnight surveillance and remote machine monitoring.
Cloth Tapes

Cloth tapes provide robustness with the incorporation of a fabric or fiber carrier, such as cotton, scrim, glass, fiberglass, or polyester. They are adaptable to a variety of substrates and conditions, as substantiated by the most common type of cloth tapes—duct tape.

UV Cameras
UV cameras are augmented video cameras meant to capture ultraviolet radiation below the visible spectrum of light. This is most frequently accomplished by the use of a UV-pass filter, a quartz lens, a CCD image sensor, and specialty illumination techniques. This allows greater clarity of minute details.
Tool Balancers
Tool balancers hold a hand-operated tool in a pre-set position to minimize operator effort during use of the tool. 

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