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Magic Wand
Select surrounding pixels based on tone and color.
Press SPACE to move and zoom in/out canvas in this mode.
Step 1
Well, this is not a very good method for selecting, but I still put it here.
Click on the image, it will select the surroundings according to the tolerance you set.
There are two tolerance sliders in RGB Channel:
* Upper Difference: Determine how "bright" a color can be considered as selection.
* Lower Differnece: Determine how "dark" a color can be considered as selection.
Step 2
If you want to adjust the edge of the current selection, you can use the following sliders:
* Grow: Expand the edge of current mask (selection).
* Contract: Shrink the edge of current mask.
* Feather Edge: Smooth and feather the edge of current mask.
You can fill small holes by applying grow and contract at the same time (morphological closing).
Step 3
You can now apply your current selection to the global selection by clicking the buttons on the right column:
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