PS Basic Learning (1)

Table of Contents

1. Basic operation

2.PS interface

3.PS format

4.Color Mode

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• 1.Basic operation

  • New: Ctrl+N

  • Open: Ctrl+O

  • Preferences: Ctrl+K

  • Save:Ctrl+S

  • Export as: Ctrl+Alt+Shift+W

  • Undo: Ctrl+Z

  • Redo: Ctrl+Shift+Z

• 2.PS interface

  • 

• 3.PS format

  • PS principle:
    • Pixels

  • Layer
    • Occlusion, layer level

  • Resolution
    • Unit: ppi (pixels/inch)
    • The larger the size, the smaller the resolution
    • The larger the resolution, the smaller the pixels
    • The bigger the resolution, the clearer the resolution

    • 

  • Image format:
    • JPG:
      • Common image formats
        • General format
        • Small memory, high image quality and fast compression
    • GIF:
      • Animation
      • Export to web format
    • PNG:
      • Transparent background
    • PSD
      • Source file
      • Easy to modify

• 4.Color Mode

  • Common Modes:
    • Bitmap mode
      • Use black and white only
    • Grayscale Mode
      • Black and white gray
    • RGB mode
      • Electronic screen display
      • Red Green Blue
    • CMYK mode
      • Ink Printing
      • cyan, magenta, yellow, black
      • RGB can be changed to cmyk, but the effect does not change after cmyk is converted to RGB
    • LAB Mode
      • The color seen by the human eye
      • L: Lightness.(its own brightness)
      • A: dark green to bright pink
      • B: dark blue to yellow

  • Color fill:
    • Color Basics
      • Hue (H), Saturation (S), Lightness (B)
    • Color fill
      • Foreground color: Alt+Delete
      • Background color: Ctrl+Delete
      • Foreground color and background color return to default: D
      • Foreground and background color swap: X