最後更新: 2018-12-19

 

 

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剪裁遮色片

 

layer mask: uses black and white to show and hide different parts of the layer.

clipping mask uses the content and transparency of one layer to control the visibility of another

Clipping Mask

Bottom: controls the visibility of the layer above it

先畫出一個你想要展示的圖形

再把你要秀出來的照片放上來

在照片的圖層上按右鍵 -> Create Clipping Mask

 

 

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Resize Image

 

[1] Whole Image

所有 layer 都會被 resize

menu -> Image -> Image Size

[2] Layer

With Move Tool selected -> "show transform controls" boxes checked at the top of your screen

[3] 選擇了的部份

Marquee select -> Right click -> Free Transform

 

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Fill

 

Marquee(M) ->

Menu -> Edit  -> Fill

Centents: Black

 

 

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Zoon in / Zoon out

 

Zoon Tool (Z)

Zoon in (Click)

Zoon out (Alt + Click)

Hotkey

Spacebar+Ctrl-click

Spacebar+Alt-click

Or

Alt + mouse scroll

常用:

Ctrl + 0           # 100% view

 

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Hotkey

 

Quick selectin tool      # W

拷貝的圖層                 # Ctrl + J

拖拉                         # 按 Spacebar

Eraser (E)

Marquee (M)

 

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去地步驟

 

原理:

Select 要保留的物件, 之後 Inverse Select (即是選了bg), 之後再按 delete

0) Duplicate the image in a new layer. (For Backup)

Ctrl + J

1)  Hide original layer

In "Layers palette" click the eye icon to hide it from view

2) Brush 操作

Brush Tool (B)

選設定

• Brush
• Hard Round

1. Alt +  Right Mouse + drag
2. left / right: increase/decrease brush size
3. up/down: brush hardness

3) Quick Mask Mode (Q)

To create and edit selections quickly

按多次 Q 離開時就會選取

過程: Brush 要保留的 Object

4) Inverse Select

Inverse Select(Shift+Ctrl+i)

修正選擇好的邊邊: Refine Edge (Alt+Ctrl+R)

5) 建立 Image

Delete

 

圖層去地法

 

Output: mask

 

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save as png

 

Interlace:

• None
• Interlaced

Interlaced:

image loads an early degraded version of the whole image as soon as possible and

then progressively renders the image to clear state. Interlaced will always be a bit bigger in filesize.
 

 

 

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crop a single layer

 

you can't crop a single layer.

The closest thing would be to copy the layer to a new image, crop that image, and copy the layer back to the original image.

It's easier just to erase or mask the part of the layer that you don't want.

 

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特大字

 

How to Do Larger Than 72 Font Size in Photoshop

Click the Layers palette and select the font layer you want to edit.

"Text" tool on the Tools palette

Click the "Character" palette

 

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Reduce Noise

 

Filter menu -> Noise -> Reduce Noise

Noise 一共有兩種

color noise (red, green and blue dots)

Step1: Reduce Color Noise

luminance noise (dots of varying brightness levels)(black, white and gray)

Step1: Strength

Step2: Preserve Details

Remark

Sharpen Details = Photoshop's actual sharpening filters

Remove JPEG Artifact

* this option is selected, since it could result in a loss of too much detail.
    (luminance and color noise)

jpeg compression artifacts

which make the image look like it's been divided into a pattern of 8x8 pixel squares.

Each time you re-save a jpeg image as a jpeg image, the quality becomes worse.