TimeBack vs 卡图cutout：实况照片视频互转照片视频格式转换、背景处理

TimeBack is a pre-recording camera and instant replay camera that continuously buffers recent footage, so when something happens, just press record to save what happened before and after. No need to record continuously while waiting, helping you avoid unwanted footage and save storage space. Perfect for fishing, sports, travel, pets, family moments, and everyday life. 【Key Features】 PRE-RECORDING CAMERA Set the pre-record duration for up to 2 minutes. 4K VIDEO RECORDING Record clear, detailed videos in up to 4K resolution. PRO CAMERA CONTROLS Adjust ISO, shutter speed, white balance, exposure, and more. QUICK RECORDING Start or stop recording with the volume buttons. VOICE CONTROL Start or stop recording with voice commands. POWER-SAVING RECORDING Reduce screen power consumption during long recordings. VIDEO MANAGEMENT Review, organize, and export your videos in the app. 【USE CASES】 FISHING Wait for the bite and capture the moment the fish takes the bait. SPORTS Capture unexpected highlights while skiing, cycling, skating, playing basketball, football, tennis, and more. TRAVEL & OUTDOOR MOMENTS Record scenery and unexpected moments along the way. BABIES & FAMILY Capture first steps, funny expressions, spontaneous reactions, playtime, and other moments that happen before you have time to press record. PETS Catch your cat or dog running, getting into mischief, or being playful. DRIVING & DASHCAM Use TimeBack as a flexible camera with a replay buffer when you want to preserve something that just happened. Save recent footage without keeping every minute as a permanent video file. 【FAQ】 Q1: What is pre-recording?
 A: Pre-recording is TimeBack's core feature. The camera continuously buffers recent footage. When you press record, the buffered footage and live recording are saved together as one video, capturing the full moment before and after the action. Q2: Does pre-recording use a lot of storage?
 A: No. Buffered footage isn't continuously saved as video files. Only the footage you choose to record is saved. Otherwise, the buffer continuously overwrites itself, using less storage than recording continuously for a long time. Q3: Can I use TimeBack without pre-recording?
 A: Yes. TimeBack also works as a regular camera with 4K video recording, camera controls, and voice control. Simply turn off pre-recording when you don't need it.

卡图cutout是一个集抠图、图片视频格式转换、实况照片与视频互相为一体的图片处理app。 首先是抠图功能。目前抠图功能只在Mac版本提供，iOS版抠图功能仍在开发优化。用户可以利用“抠除背景”一键抠除背景，将一张图像转换为透明背景仅保留主体，也可以利用“画笔”“吸管”“橡皮”对自动抠除的结果进行修改。通过连线、框住部分分离，用户也可快速分离想要的图片部分。 其次是图片格式转换功能，这一功能可以实现主流图片或视频格式之间的转换。 最后是实况与视频之间互转功能。在转换页面，用户可导入一张实况照片，之后将其转换为视频。在视频抠帧页面，用户可以从视频中保存一帧静止的图片，也可以保存一张实况图片。