开源视频编辑软件OpenShot正式发布4.0版本，带来了多项创意工作流和性能方面的重大升级1。新版本引入屏幕录制功能、专业色彩分级工具、本地AI驱动的对象遮罩以及10项新效果1。
新增的Color View功能为用户提供了支持色轮、曲线、LUT和专业视频示波器的色彩校正和分级工具1。Recording View则允许用户在项目中直接录制麦克风、屏幕、摄像头和系统音频，各源保持独立可编辑1。Object Mask效果集成了本地运行的YOLO、EfficientSAM和Cutie机器学习模型进行主体隔离，无需依赖云服务或订阅1。
在性能优化方面，本次更新实现了显著提升：Blur效果性能提升61.8%，Sharpen提升12.8%，时间线渲染提升3.4%-5.1%1。新增的效果包括音频可视化、节拍同步闪光、电影胶片效果、降噪和动画计时器等1。OpenShot同时发布了libopenshot和libopenshot-audio 1.0.0版本，并展开Qt 6和PySide6支持以为Android等未来平台奠定基础1。
OpenShot 4.0 has been released, marking a significant upgrade for the open-source video editing software1. The new version introduces screen recording capabilities, professional color grading tools, ten additional effects, locally-run AI-powered object masking, an improved native timeline, and substantial performance improvements1.
The Color View feature enables users to perform color correction and grading using color wheels, curves, LUTs, and professional video scopes1. A new Recording View allows users to capture microphone, screen, camera, and system audio directly within projects while keeping each source independently editable1. The software has achieved significant performance gains, with the Blur effect running 61.8% faster, Sharpen 12.8% faster, and timeline rendering improved by 3.4% to 5.1%1.
The Object Mask effect uses locally-operated machine learning models—YOLO, EfficientSAM, and Cutie—to isolate subjects without requiring cloud services or subscriptions1. Ten new effects have been added, including audio visualization, beat-sync flash, film grain, noise reduction, and animation timer capabilities1. The underlying libraries, libopenshot and libopenshot-audio, have both reached version 1.0.01. Expanded Qt 6 and PySide6 support establishes the foundation for future platform expansion, including Android1.
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