(To keep things simple, we will not describe the audio components of video in this article.) A Simple Computer Vision App Tutorial: Calculating Brightness This experience will position you to customize a computer vision pipeline to your exact use cases. In this tutorial, we will use popular open-source computer vision tools to solve some basic challenges of video processing. ![]() While the compressed video, as a whole, may play well enough to provide a terrific viewing experience, that is not the same as the individual frames comprising it being interpretable as complete images. This is because the parameters applied at compression time define the quality and detail a video’s individual frame will retain. But there is no guarantee that an individual compressed video frame will display an image in its entirety. Video is, therefore, compressed before it is processed, as a matter of course. A single minute of 60 frames per second (fps) raw, uncompressed video requires more than 22 gigabytes of storage space, for example:Ħ0 seconds * 1080 px (height) * 1920 px (width) * 3 bytes per pixel * 60 fps = 22.39 GB In its raw state, a video file is huge in size, making it too large to hold in a computer’s memory, unwieldy for the developer to handle, difficult to share, and costly to store. For example, before an engineer writes a program to detect real-time traffic patterns in a video of moving vehicles, they must first extract individual frames from that video, and then apply an algorithm that detects the cars on the road. But a developer must approach it as a collection of individual, sequential frames. Size Matters: Common Challenges of Working With VideoĪn end user who views a video may regard it as a single entity. Each application transforms unstructured-sometimes chaotic-images or frames into intelligible and ordered data that provides a benefit to end users. The preceding examples are as different as can be, each showcasing an entirely distinctive function, but sharing one simple commonality: Images are their primary input.
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