Description

Python script for cropping clear borders of any color in images with some degree of noise tolerance.

More information is available in previous version's readme

Differences

• Uses pyvips/libvips instead of Pillow for 16-bit/band and more format support
• Resizes images using Magic Kernel Sharp (a=6, v=7), Numpy + Numba resizer implementation
• Saves 16-bit/band images after resizing (8-bit input images without resizing will be saved as 8-bit)
• Settings are saved in JSON with an ability to load custom settings files
• Can save and load job JSONs with custom settings for any file
• Saves to PNG (up to 16 bit), JXL (internal libvips, up to 16 bit), AVIF (still external, because internal ilbvips encoder doesn't support 8+ bit images; up to 12 bit)
• Option to ignore already vertically cropped space in horizontal crop

Requirements

Python, pyvips, numpy, numba.

Tested on Python 3.13.1, pyvips 2.2.3, Numpy 2.1.3, Numba 0.61.0.

Requires external native libvips library.

Resources

• Magic Kernel official site
• Magic Kernel Rust implementation
• pica JS resizer