The Realm of Pixels

 

The is the second chapter of the Dimensions of Photoshop instructional video set. 

These sections outline concepts of processing astronomical images in Photoshop. 

 

Section 1
  • Pixel values and Bit Space
  • Understanding the Screen Stretch
  • Understanding Histograms
25 minutes
Section 2
  • Opening Images in Photoshop
  • Unstretched and Permanently Stretched (scaled) Data
  • Adjustment Layers (non-destructive/permanent)
39 minutes
Section 3
  • Straight to the Point with Curves
  • Curves usage
  • Non-Linear Adjustments with Rigor
  • The Curves and Levels Relationship
28 minutes
Section 4
  • A/B Comparison, an introduction to Blending Modes
  • The Lighten Blending Mode
  • A Puzzle to Solve
8 minutes
Section 5
  • Preparing a Luminance Image (with small amount of Processing in CCDStack)
  • Permanent Stretch Procedure to Optimize Color (in Photoshop)
19 minutes
Section 6
  • H-alpha Blending
  • Creating RGB Images using Channels
  • Use of Screen, Output Levels, and Opacity
27 minutes
Section 7
  • Unsharp Mask Filter
25 minutes
Section 8
  • Blending Modes (Part 1)
  • Characterization and Mathematical Descriptions
  • Darken, Lighten, and Multiply
30 minutes
Section 9
  • Blending Modes (Part 2)
  • Linear Burn, Screen, Overlay and Pin Light
31 minutes
Section 10
  • Blending Modes (Part 3)
  • Luminosity (Color) Blending Mode
23 minutes