Portable Network Graphics

(redirected from PNG format)

Portable Network Graphics

(file format)
/ping/ (PNG) An extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-colour, greyscale and truecolour images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits.

PNG is designed for on-line viewing applications, such as the World Wide Web, so it is fully streamable with a progressive display option. PNG is robust, providing both full file integrity checking and simple detection of common transmission errors. Also, PNG can store gamma correction and chromaticity data for improved colour matching on heterogeneous platforms.

Filename extension: .png.

RFC 2083. W3C PNG pages. PNG home page.
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References in periodicals archive ?
Spoken word poets and musicians should send video or audio; attach a short bio, maximum 75 words; and attach a photo in JPG or PNG format -- a head shot works best.
Images should be in jpeg or png format and at least 200 pixels per inch.
Conversion from DWG format to PNG format process has also been enhanced.
Once created you can save your own charts, reports, posters on the site and then they can be downloaded in PDF, JPEG or PNG format making them quite flexible to use depending on your circumstances and intentions
Photograph files must be JPEG or PNG format and no larger than 1MB.
Overall, designers can upload 42 images in PNG format.
Entries can be submitted as sketches, illustrations, graphic designs or photographs in JPEG or PNG format no larger than 2MB in size.
com/topps, choose a card format from among three options, upload images in a jpeg, gif, tiff, or png format, and enter the specific information they want on the card, including player's team, player's name, position, season and coach's name.
With buttons, logos, drawings, diagrams and cartoons, either the GIF or newer PNG format, is typically faster loading than JPEG.
Once you're satisfied with the rendition, the software can print out a diagram or save an image to disk in BMP or PNG format.
With buttons, logos, drawings, diagrams and cartoons, either the GIF format or the newer PNG format typically load faster than JPEGs.
Photo buffs can access JPEG, GIF, BMP, and PNG format pictures and display them on television screens using a remote control unit for picture selection.