An Introduction to Photo & Video Formats
JPEG, or the Joint Photographic Experts Group, is a data compressing standard widely used among still images. Allowing for representation of
a large color spectrum and smaller file sizes, the JPEG is a popular means of photo file storage and transportation, although its use of lossy compression
also results in a decline in resolution and quality whenever a picture is edited in or saved as JPEG. And that decline is cumulative.
JPEG is less ideal for pictures with less numbers of colors, larger chunks of similar colors, or polarized brightness levels.
The RAW file refers to the original format of an image file, though it may not always mean the same file format.
Digital devices may have dozens of different models that use this format (commonly found in digital cameras or film scanners)
because such files have not been processed or edited, and contains a wide-gamut internal color space for more precise adjustments.
The file size of the original image is usually many times larger than its converted JPEG version.
Using the RAW format will avoid reducing the resolution or quality of the original picture.
HD refers to High Definition. Before High Definition was introduced, there was the SD (Standard Definition), which offered resolution of merely 720*480 (480p).
With HD, the resolution reaches 1280*720 (720p).
Full HD, or Full High Definition, is considered the successor of HD, with its resolution being 1920*1080 (1080P).
4K, officially known as the Ultra HD or UHD, can be divided into 4K UHD 3840*2160 or True 4K 4096*2160.
In recent years, though, the more mainstream 4K UHD monitors in the market mostly come with the 4K UHD 3840*2160.
Only a few of them are of the 4096*2160 resolution.
4K UHD has now become quite popular, with TVs and mobile phone vendors emphasizing 4K UH in their specifications.
As for True 4K, it is mainly used in digital cameras and projectors that seek higher image quality.
CAPACITY COMPARISON CHART
File sizes will be subject to the exact compression transcoder (e.g. MPEG-4, H.264) used by a vendor and to the bit rate. For more information, please refer to the user’s manual of your host device.
Photo - Compressed/JPEG
Photo - Uncompressed RAW (24bit per pixel)
Video Recording Time (Coding Format: H.264)