[49] Gamma correction of PNG images was not supported before version 8, and the display of these images in earlier versions may have the wrong tint.[50]. GIFs can be used for small animations and low-resolution video clips. Since there are 3.6M rows, we will need the dask.dataframe library. GIFs are a great way to show changes over time, especially with large datasets. Since this was more efficient than the run-length encoding used by PCX and MacPaint, fairly large images could be downloaded reasonably quickly even with slow modems. The original version of GIF was called 87a. [12] In 2017, an informal poll on programming website Stack Overflow showed some numerical preference for hard-"G" pronunciation,[13] especially among respondents in eastern Europe, though both soft-"G" and enunciating each letter individually were found to be popular in Asia and emerging countries. Notes on converting videos to GIF files: With file-converter-online.com it is possible to create GIFs from videos for free and without watermarks. Next, we feed in the data using cvs.points() which takes in the data, ‘x’ — the converted longitude, and ‘y’ — the converted latitude. For instance the libungif library, based on Eric S. Raymond's giflib, allows creation of GIFs that followed the data format but avoided the compression features, thus avoiding use of the Unisys LZW patent. Of that upper block, the first two codes are already taken: 2n for CLEAR and 2n + 1 for STOP. Since the column is now a datetime object, I can use another the function .dt.strftime(“%Y”) to access the years of each point to create a new column. The encoding process that produces the 9-bit codes is shown below. [citation needed], With the introduction of widespread support of the HTML5 video (