Photoshop CC---select ,channel, Layer, and masking

Photoshop CC---select ,channel, Layer, and masking

Selection

After select right click __ save selection__ (New or Channel)(Save to channel)

Shift Key = Add selection

Alt Key = Subtract selection

Hold down Alt Key and drag = Copy selection

After selection __ Delete key = Fill

If select channel have 4 options (New channel, Add to channel, Subtract from channel or intersect with channel.)

Channel

Channels are grayscale images that store different types of information.

Different image mode have different channel(RGB ,CMYL,LAB etc.)

Channel panel

Load channel as selection

Save selection as channel

Create new channel

Delete current channel

Right click channel __ Duplicate channel.

Edit __ Preference __ Interface __ Options __ Show channels in color (Don’t use)

Alpha channel

You can create a new alpha channel and then use painting tools, editing tools, and filters to create a mask from the alpha channel.

You can also save an existing selection in a Photoshop image as an alpha channel that appears in the Channels panel.

Masking

After selection __ Layer panel __ Add a mask

B Key =Brush [ key and ] key change brush size

D Key default foreground or background color (Black/White)

X Key switch foreground or background color.

Shift Key + Click mask ( disable or enable mask )

Ctrl + I Key Inverse mask

Alt + Drag = Copy mask

Right mask __ Refine mask

 

Layer

Ctrl + J Key  = Copy layer

Create a layer from selection = Ctrl + J Key.

Create a new group __ Rename __ Drag the layer to layer group. ( Right click ungroup )

Layer can set blending mode and opacity.