Upscale any video of any resolution to 4K with AI. (Get started for free)
How can I easily enhance and upscale lower quality videos to improve their image and sound quality to near-high definition standards?
Upscaling a video's resolution does not add new detail that wasn't there in the original recording.
It uses algorithms to improve the appearance of existing details.
Video upscaling tools, like AI-based converters, can enhance the resolution by interpolating new pixels based on the surrounding pixels' color and brightness values.
Video upscaling also improves the video's bitrate, which results in better color accuracy, fewer compression artifacts, and overall higher visual quality.
Video upscaling is distinct from frame rate conversion (increasing from 24fps to 60fps, etc.).
It only deals with altering the resolution, not the smoothness or temporal consistency of playback.
Converting lower quality audio tracks in videos along with resolution improvement can make a substantial difference in the final output quality.
Video denoising, a technique to remove unwanted noise and grain from videos, can be employed during video upscaling to further improve visual quality.
Video upscaling tools like VideoProc Converter AI and Handbrake use advanced algorithms like Lanczos, Spline, and Bilinear, which avoid blocky artifacts and preserve edge details.
When upscaling, consider the aspect ratio to avoid introducing letterboxing or pillarboxing, resulting in the waste of valuable pixels.
Video upscaling is a computationally intensive process that may take a long time, depending on the video's resolution, length, bitrate, and target resolution.
Most modern TVs and monitors have built-in upscaling algorithms that can improve the appearance of lower-resolution content on higher-resolution displays.
However, dedicated software may provide more fine-grained control and better results.
Professional video editing software, like Adobe Premiere Pro and Final Cut Pro, can produce high-quality upscaling results via the use of powerful AI algorithms or plugin upscalers.
Online video upscalers like AI-based Online Video Enhancer AI can offer a convenient and cost-effective option for quick upscaling tasks, although the quality might not match dedicated software.
UHD (3840x2160 pixels) or 4K resolution (4096x2160 pixels) can be targeted for upscaling, but achieving a visually convincing result depends on the source material and applied upscaling method.
Deep learning methods like waifu2x and Let's Enhance utilize Convolutional Neural Networks (CNN) to improve upon standard upscaling algorithms and deliver higher-quality upscales.
Popular waifu2x implementations include Waifu2x-Caffe and waifu2x-converter-cpp, though these upscalers are primarily aimed at animé content.
AI upscaling can still struggle to add high-frequency details like hair strands, textures, and fine lines.
Techniques like edge-enhancement can be used post-upscaling to alleviate this issue.
There is a trade-off between processing time and the quality of upscaling: more computationally intensive upscaling methods will yield better results but take longer to process the videos.
When downscaling from higher resolutions, avoiding temporal and spatial anti-aliasing can minimize the loss of detail and result in a cleaner, sharper final image.
Newer machine learning techniques might improve upon the visual quality obtained through upscaling by adaptively providing super-resolution images based on low-resolution inputs and a given dataset.
A combination of denoising, deblocking, super-resolution, and sharpening techniques can provide visually pleasing enhancements to lower-quality videos during the upscaling process.
Upscale any video of any resolution to 4K with AI. (Get started for free)