PinFrame | 定帧

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PinFrame is a distinctive sprite sequence tool. While it may not replace a full animation suite for creating assets from scratch, it excels at previewing, fine-tuning, and consolidating sprite sequences or sprite sheets. It is particularly effective for managing assets with inconsistent dimensions or processing AI-generated character sequences.

PinFrame is also a GIF processing tool: supporting frame decomposition, cropping, merging, resolution adjustment, speed adjustment, and frame removal.

• Precise Transformations: Supports per-frame translation, scaling, rotation, and mirroring, with independent X/Y scaling ratios.
• Multi-Dimensional Anchors: Four anchor modes available: canvas center, image center, custom canvas position, and custom image-following position, ensuring complete control over transformation pivots.
• Onion Skinning: Configurable multi-frame overlays for perfect animation continuity.
• Reference Frame System: Lock any frame as a foreground or background reference; includes smart mutual exclusion with onion skinning.
• Flexible Interaction: Supports wheel mode toggle (zoom view or scale image).
• Flexible Preview: Forward and reverse playback for global or selected frame ranges, custom playback speed. Multi-selected frames display as instant overlays for batch adjustments.
• Sprite Sheet Processing: Built-in slicing tool to extract sequences from sprite sheets, and direct sprite sheet export support.
• Professional Export: Supports custom frame ranges, custom background colors, and exporting as PNG sequences, compact sprite sheets, or GIFs.
• Batch Operations: Batch copy/paste properties, duplicate frames, remove frames, and reverse frame order.
• Lossless Workflow: Projects store data in JSON without duplicating resources or sacrificing asset precision due to import scaling.
• Project Portability: Quickly copy assets to the project directory with automatic relative path management; assets remain intact when moving projects.

• Video Import/Export: Precise preview and frame extraction from videos is necessary, but it will significantly increase the application size.
• Basic Background Removal: Useful for better asset previews, though it may not be possible to integrate a highly effective solution.

• Pixel-level Editing.
• Layers: PinFrame will not provide layer functionality, as it would overcomplicate the timeline and deviates from its goal as a fine-tuning tool.

• Python 3.11+
• PyQt6
• Pillow

# Install dependencies
pip install -r requirements.txt

# Run application
python main.py

The project includes a pre-configured PyInstaller spec file for building standalone Windows executables:

# Install packager
pip install pyinstaller

# Run build
pyinstaller PinFrame.spec

The resulting executable will be located in the dist/PinFrame directory.