You can create a pixel selection by sampling a colour from pixel layers.
Sampled colour selection can be precursors to further adding to or subtracting from selected regions. In the image above, an initial sampled colour selection was made prior to switching to the Selection Brush Tool (set to Add mode) for fine tuning selected areas.
Settings
The following settings can be adjusted from the context toolbar:
Model—determines the colour model used when sampling.
The following settings can be adjusted on the vertical slider:
Tolerance—determines how closely pixels must match the selected colour to be included in the selection. For lower tolerance settings, pixels must be very close in value to the targeted pixel. For higher tolerance settings, pixel colour can vary widely from the targeted pixel.
To create a pixel selection from a sampled colour:
Select the pixel layer containing the colour to be sampled.
On the Selection menu, select Select Sampled Colour.
Tap on the colour to be sampled.
Adjust the colour and tolerance settings on the context toolbar and the vertical slider, respectively.
To create a pixel selection from a sampled colour: