iMovie is regarded as a must-have for those who are running on macOS operating system, for it's a free yet practical tool to process and edit your recordings from iPhone, iPad, action cam, GoPro, Drone, etc. However, the majority of users both love it and hate it. Why say so? Cuz it's a user-friendly video editing software, as well as a troublemaker with continuous errors. Among them, iMovie quality loss is their top concern.
2. Some users opt for Share > Publish to iTunes as exporting option. They get the poor video quality when playing back no matter which size settings they choose, Mobile, Medium, Large, HD 720p and HD 1080p. In such case, the exporting option you select might be the one to be blamed.
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That's not the whole story. On top of lossless video editing, it can further enhance your original video quality to an even higher level. Let you adjust brightness, hue, contrast, saturation to improve image quality, stabilize your shaky video, remove background noise from video to improve audio quality, correct fisheye distortion to produce normal visual effects, as well as upscale resolution (1080p to 4K), improve frame rate/bit rate, change aspect ratio for better quality.
Netflix is no stranger to smart marketing. And in this example, while its thumbnail appears to be almost plain and simple, the use of contrast and color is impactful. Using just three words on the thumbnail image, the video streaming service has been able to leverage a familiar face (Andrew Garfield). The magic three words are two any movie fan loves to see (Official Teaser), and the brand name in the top left and corner. Notice how all three words contrast perfectly with the dark background of the video still. Do you also see the expression on Andrew Garfield's face? Can you feel the suspense?
Video transcoding (both encode and decode) is a hot topic in performance metrics as more and more content is being created. First consideration is the standard in which the video is encoded, which can be lossless or lossy, trade performance for file-size, trade quality for file-size, or all of the above can increase encoding rates to help accelerate decoding rates. Alongside Google's favorite codecs, VP9 and AV1, there are others that are prominent: H264, the older codec, is practically everywhere and is designed to be optimized for 1080p video, and HEVC (or H.265) that is aimed to provide the same quality as H264 but at a lower file-size (or better quality for the same size). HEVC is important as 4K is streamed over the air, meaning less bits need to be transferred for the same quality content. There are other codecs coming to market designed for specific use cases all the time.
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