The Clone Brush Tool paints samples from one part of an image onto another. It's useful for removing defects, general photo retouching and duplicating parts of an image. Like all brush tools, it is pressure sensitive to create natural looking strokes when using a pressure-sensitive device.
Settings
The following settings can be adjusted from the context toolbar:
Width—the brush (stroke) size in pixels. Type directly in the text box or drag the pop-up slider to set the value.
Opacity—how see through the brush is. Type directly in the text box or drag the pop-up slider to set the value.
Flow—how fast the brush effect is applied (1% is very slow, 100% is immediate). Type directly in the text box or drag the pop-up slider to set the value.
Hardness—how hard the edges of the brush are. The brush appears softer as the percentage decreases. Type directly in the text box or drag the pop-up slider to set the value.
More—click to display the Brushes dialog to access advanced brush settings.
Force pressure to control size—Click to control brush size with pressure if using a pressure-sensitive device. This overrides brush defaults.
Stabiliser—enables stroke stabilisation using either a Rope stabiliser or Window stabiliser mode; the former drags the stroke end by a 'rope' to smooth the stroke but lets you introduce sharp corners at increasing rope Length (radius) values by redirecting the slackened rope; the latter will smooth the stroke by averaging sampled input positions within a Window whose size is configurable.
Blend mode—changes how the applied pixels interact with existing pixels on a layer. Choose mode type from a pop-up menu.
Aligned—when selected (default), the origin of the sample remains a fixed distance from the pointer. If this option is off, the origin of the sample always returns to the sample location defined initially.
Source—the source determines the layer(s) from which the pixels are sampled. Select from the pop-up menu.
Add Global Source—sets the currently defined sample origin as a global source for use in other images. Remember to select a source using -click first.
Rotation—sets the degree of rotation applied to the sample. The result can be previewed inside the brush cursor. Type directly in the text box or drag the pop-up slider to set the value.
Scale—sets the scale of the sample between 1% and 1000%. Type directly in the text box or drag the pop-up slider to set the value. The result can be previewed inside the brush cursor.
Flip—allows for horizontal and vertical flipping of the resulting clone relative to the sampled area. Choose horizontal, vertical or both directions from a pop-up menu.