LPIPS metric. pip install lpips
Go Perceptual image hashing package
pHash - the open source perceptual hash library
The APCA version, to be licensed for use with guidelines: W3/AGWG.
A metric for Perceptual Image-Error Assessment through Pairwise Preference (PieAPP at CVPR 2018).
Tools made for usage alongside artistic style transfer projects
Author's Implementation for E-LatentLPIPS
DCCRN with various loss functions
sharp based perceptual hash implementation
A Python port of the MATLAB reference implementation
Learning-based Just-noticeable-quantization-distortion Model for perceptual video coding
One JAVA version of PHash (Perceptual Hash) algorithm (JAVA 版本的 官方经典PHash算法)
Perceptual hashing library in python (with redis)
A Study of Deep Perceptual Metrics for Image quality Assessment
Choose from 3 to 7 colors from CIE Lab or Lch with different graphic tools
StarTap Image Shrinking Tool — a Rust+Tauri image compressor that shrinks photos 50-80% while resisting WeChat/Xiaohongshu recompression (mozjpeg, 4:4:4 chroma, CAS). Dual-mode GUI + Agent-First CLI. 星TAP 图片高速压缩：专治微信/朋友圈二次压缩，体积小又清晰，GUI+AI 双模式。
A time-domain extension to "Perceptual Contrast Stretching on Target Feature for Speech Enhancement"
perceptual audio codec/file format based on WLPC in a FLAC container
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