HEIC is a file format used for storing both individual images and sequences of images. It came to prominence as the default photo storage format on Apple iPhone devices from iOS 11 onwards (replacing JPG) and macOS High Sierra. Developed by the MPEG group, HEIC files are generally 50% the size of JPEG files, but with higher visual quality. They also allow users to store metadata and image edits alongside the photo, and more than one photo in a file (useful for "Live" photos).
A .heic file is a container, indicating that the stored media is a type of High Efficiency Video Codec (HEVC) file, as defined by the High Efficiency Image File Format (HEIF) specification. Like JPG files, the HEIF specs detail that image data is stored using discrete cosine transform (DCT), which results in lossy compression. However, becuase HEIF supports a larger variety of block sizes for DCT (from 4x4 to 32x32), the resulting compression is more efficient, leading to smaller files sizes. HEIF also supports animations, thumbnails, image edits, sequences, metadata and extra image data such as alpha plane or a depth map.
Moving Picture Experts Group (MPEG)
Tiff was originally created by a company called Aldus, and is now owned by Adobe systems, it is a file format for storing images, including line art and photographs. It was created due to the popularity of scanners and was thought-up to become the standard scanned image file format. It is a popular format for high-colour-depth images and it has also been adapted to accommodate greyscale images.
Tiff is widely popular format for storing the color images of high quality with a great depth of color (including graphics and photos) on a wide variety of computer platforms. It can save images in shades of gray. It is created by specialists from Aidus, which later became a part of Adobe Systems. It is used to scan and recognize text files. The extension correctly interacts with most applications that provide graphics. Tiff-files are the main format of ?? NeXSTEP, where the scan-line images of this extension were borrowed from Mac OS.
A TIFF file is made up of many different blocks which define the palette data or the LZW-compressed body among other things. The byte order is either Motorola or Intel depending on the first word. if it is MM, then you have Motorola byte ordering and likewise if it is II it means you have Intel byte ordering. Each TIFF file begins with an image file header which then points to an image file directory which contains the image data and image information.
Tiff-files can be stored in the formats of Intel or Motorola, which is determined by the first word - II and MM respectively. This is due to the peculiarities of these processors: Intel reads and writes numbers from right to left, Motorola in reverse order. The format is cross-platform and does not require specialized software. They are correctly displayed by popular graphic editors like Adobe Photoshop or CorelDRAW Graphics. Tiff-file can be presented in the form of tags that carry information about the image, or a single file executed using the LZW compression algorithm. Each named Tiff data area begins with the image header pointing to the image file in the directory storing the submitted images and information about them.
Aldus, Adobe Systems