Photoshop Notes-Selection
I. Magic Wand&Tolerance Setting
Tolearnce Setting: How many shades of brightness the Magic Wand includes in a selection.
Example: Leavs on the floor:
1. Ctrl +1, 2, 3 to open the individual channel, (open the red)
2. Tolerance=40
3. Ctrl + ~ to return to the composite view
Additional Controls:
1. Anti-aliased on
2.Contiguous (only the same tonal areas that are directly connected to the point you click)
II.Magnetic Lasso Tools
For selecting image elements that are very similar to their environments and for which the Magic Wand would have difficulty.
Setting:
Width: How far from its center to detect an image edge. Lower setting (1-40px) when the area you need to select is close to the areas you don't need to select.
Edge Contrast: Higher settings (30%more) to select the object that are well defined from the background.
Tips:
1. Select magnectic lasso tools, then press Caps ock to see the the width setting.
2. While selecting, press the right "]" to increase width setting by 1 pixle.
3. Shift + ] to increase the Edge to the maximum of 40, shift + [ to the minimum.
3. [Alt-click] to access standard lasso tool
4. BACKSPCE + DELETE to delete the anchor point you don't like
Frquency: How many nchor points the magnetic lasso tool lays down.
III. Quick Mask:
Starting with the initial selection, refine the selection with quick mask.
Tips:
1. Use small paint brush to dab over the specs .
2. Dust & Scratch filter to remove the small very quickly.
Filter>noise>Dust& Scratches
Move the Radius up till dust specs disappear. (Using as low as radius as possible in case the
edge quality of the selection is not soften too much)
III. Selection Menu-Color Range

