Undo & Redo Functions

Feature Undo & Redo Functions
Feature

Undo & Redo Functions

August 16, 2026

✨ A Complete Guide to the Undo and Redo System

PhenoCapture features a highly advanced, non-destructive Undo and Redo engine that acts as your ultimate safety net. Unlike standard undo features that only remember basic image changes, PhenoCapture’s system is designed to independently track both your image edits and your region selections (masks).

This means you can freely experiment with complex AI filters, draw intricate selection boundaries, and apply modifications with complete peace of mind, knowing you can instantly step backward or forward through your entire editing history.

💡 Key Features

  • Intelligent Dual-Tracking: The undo system brilliantly separates your image data from your selection data. If you spend five minutes perfectly adjusting a selection mask and then apply a filter you don’t like, hitting Undo will revert the image without destroying your hard-earned selection!
  • Smart State Recovery: The engine constantly monitors the timeline of your workspace. If you undo a specific action that only affected a selection, the system automatically looks back through your history to fetch the exact image that goes with it, ensuring your workspace always displays the perfect, synchronized state.
  • Lightning-Fast Navigation: Moving backward (Undo) or forward (Redo) through your history is completely seamless. The system dynamically updates the workspace and instantly restores your visual layers without any lag or flickering.
  • Fail-Safe Protection: Every major action—whether it’s applying an AI Super Resolution, subtracting a binary mask, or utilizing the Magnetic Snap tool—automatically captures a snapshot before processing. You are never permanently locked into a mistake.

🛠️ How to Use the Undo/Redo System

Step 1: Edit and Select Freely

Work as you normally would! Apply filters, draw shapes, run AI background removals, or merge binary masks. The engine silently works in the background, recording a chronological timeline of every major change you make.

Step 2: Stepping Backward (Undo)

Made a mistake or don’t like the result of a filter? Simply click the Undo button (or use the standard keyboard shortcut).

  • If your last action was an image change, the image reverts.
  • If your last action was drawing or expanding a mask, the mask reverts.

Step 3: Stepping Forward (Redo)

Undid too far? No problem! Click the Redo button to step forward through your history and re-apply the exact changes and selections you just removed.

Note: The Undo and Redo buttons will dynamically enable or disable themselves so you always know when you have reached the very beginning or the very end of your editing history.