An analysis of a gif file and weird gif features #Graphics
The gif file format was created in 1987 by CompuServe. Back in 1987 gif was a rather compact format! It used compression, and not just any compression, but LZW compression. Many older file formats (some made by CompuServe) used RLE (Run Length Encoding) which in many cases isn’t nearly as efficient. One of the big win factors for gif was its solid compression ratio and good color gamut for the time (a full 256 colors).
Two years later an addendum to the gif file format was created (gif89a) which added many of the features we know today.
Darrien’s technical blog digs into the gif spec and shows there is a lot more to the spec and how using some of them might confuse image renderers.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.