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Other programs allow one to automatically convert an image to text characters, which is a special case of vector quantization. A method is to sample the image down to grayscale with less than 8-bit precision, and then assign a character for each value. Such ASCII art generators often allow users to choose the intensity and contrast of the ...
ASCII was incorporated into the Unicode (1991) character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters.
This is a reference to the 128 ASCII codes for programmer convenience. It is not expected that it be included in anything, but act as a look-up at need for templates where hard coding of a character is needed to work around undesirable preprocessing effects during the parsing and expansion of a template line.
File:ASCII Code Chart.svg. Size of this PNG preview of this SVG file: 800 × 316 pixels. Other resolutions: 320 × 126 pixels | 640 × 253 pixels | 1,024 × 405 pixels | 1,280 × 506 pixels | 2,560 × 1,012 pixels | 830 × 328 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Braille ASCII. Braille ASCII (or more formally The North American Braille ASCII Code, also known as SimBraille) is a subset of the ASCII character set which uses 64 of the printable ASCII characters to represent all possible dot combinations in six-dot braille. It was developed around 1969 and, despite originally being known as North American ...
File:ASCII-Table.svg. Size of this PNG preview of this SVG file: 738 × 599 pixels. Other resolutions: 296 × 240 pixels | 591 × 480 pixels | 946 × 768 pixels | 1,261 × 1,024 pixels | 2,522 × 2,048 pixels | 1,000 × 812 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
List of file signatures. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible.
Base64 is particularly prevalent on the World Wide Web where one of its uses is the ability to embed image files or other binary assets inside textual assets such as HTML and CSS files. Base64 is also widely used for sending e-mail attachments, because SMTP – in its original form – was designed to transport 7-bit ASCII characters only ...