Which coding method encodes images individually as JPEGs?

The correct choice refers to Intraframe Coding, which allows each image, or frame, in a video to be encoded independently as its own JPEG image. This method is essential for maintaining high image quality, as each frame is treated as a discrete unit, enabling efficient compression without relying on data from previous or subsequent frames.

Intraframe Coding is especially useful in scenarios where the video needs to be edited or when seeking specific frames, as each frame can be accessed without decoding adjacent frames. This self-contained nature of encoding allows for better error resilience and quality preservation during playback, especially when compared to other methods that depend on temporal compression strategies.

In contrast, other coding methods like Interframe Coding utilize information from surrounding frames to reduce file size, which can lead to artifacts in scenarios where there is significant motion or scene changes. Predictive Coding and Reference Coding similarly rely on previous frames or specific reference pixels, rather than treating each individual frame as its own isolated image. Therefore, Intraframe Coding stands out as the straightforward approach to encoding images individually, making it the correct answer.