Overlay

Overlay uses only image loaded to Image Editor as Source. Set desired settings and click Overlay! button or E shortcut while mouse cursor is inside Image Editor.

Solar Curves

Solar Curves Solar Curves Detail
Find irregularities/patches in smooth areas

Recreation of Solar Curves tool that helped me every day in past over then decade in photo retouching business. It is especially powerful in finding uneveness in smooth areas, and especially-especially in overly dark and light areas. Analyse hard to see details like double shadows, noise, dust on lens or sensor, compression artifacts etc.

  • Mode - Main image data-block mode setting. Default value can be set automatically. See Preferences for more info.
  • Type - Switch between overlay types.
  • Exposure - Adjust exposure of base image before overlay is applied.
  • Opacity - Overlay opacity over original.
  • Boost - Multiply overlay colors.
  • Invert - Invert overlay colors.
  • Draw - Draw override for this Image data-block.
  • Overlay! - Operator to start bDiff Image Data-Block Engine. Image Editor global shortcut to toggle engine is E. If engine is running, becomes Stop button.
  • Render Screen - Render screen image to a PNG file.
  • Refresh - Refresh all images in bDiff Image Data-Block Engine if they have been modified from outside. Image Editor global shortcut is R.

Overlay Solar Curves Demo

Compression Artifacts Demo
Find compression artifacts
0.0 0.0 0.2 0.4 0.6 0.8 1.0 0.2 0.4 0.6 0.8 1.0
Plot of shader lookup table curve

Detect Edges (Sobel)

Detect Edges Detect Edges Detail
Evaluate render noise

Finding noisy areas, compression artifacts, etc..

  • Mode - Main image data-block mode setting. Default value can be set automatically. See Preferences for more info.
  • Type - Switch between overlay types.
  • Exposure - Adjust exposure of base image before overlay is applied.
  • Opacity - Overlay opacity over original.
  • Boost - Multiply overlay colors.
  • Invert - Invert overlay colors.
  • Draw - Draw override for this Image data-block.
  • Overlay! - Operator to start bDiff Image Data-Block Engine. Image Editor global shortcut to toggle engine is E. If engine is running, becomes Stop button.
  • Render Screen - Render screen image to a PNG file.
  • Refresh - Refresh all images in bDiff Image Data-Block Engine if they have been modified from outside. Image Editor global shortcut is R.

Overlay Detect Edges Demo

Compression Artifacts Demo
Find compression artifacts