Из PPM в BGP

PPM is an image file format that is included in the Netpbm open source graphics editor. This graphic format is convenient and simple. Other Netpbm formats that have found widespread use are PBM, i.e. Portable Bitmap, as well as PGM, i.e. Portable Graymap. This three graphic formats are sometimes referred to as PNM, i.e. Portable Format Anymap. PGM stores grayscale images. PMP is a collection of color images, which are intermediate files that are used when converting formats not so well known, using Portable Bitmap Utilities. And PPM files are mainly used on UNIX platforms that are based on Intel. These files are categorized as bitmap images. This is a 24-bit color image that has been formatted in text format. Takes every pixel with a number from zero to 65536 for storage. The color of the pixel is determined by the number. Contains data spaces, the height and width of the character, the maximum color values. Portable Pixmap uses an uncompressed low-performance format that can be compared with other bitmap image formats. This explains its rare use in order to store large images.

BPG is a new graphic format developed by French programmer Fabrice Bellard, known as the creator of the popular programs FFmpeg, QEMU, LZEXE. The main task of the new format is to become a replacement, first of all, for the super popular JPEG image format. According to the developer, such a replacement is necessary where the file size or quality is of great importance. BPG (full name Better Portable Graphics) has a high compression ratio, which, when equal to JPEG quality, allows you to make files much smaller. Moreover, compression is possible without loss. Since the BPG format also supports animation, this gives rise to forecasts that this particular format can successfully compete and eventually replace the animated GIF on the Internet, since it surpasses it in all respects. So, GIF-animation of similar quality will have a much larger size. The BPG format is based on a subset of the HEVC open video compression technology. Mozilla research has shown that HEVC coding demonstrates clear superiority over other technologies. However, the HEVC standard does not have perfect patent purity, and therefore many browsers so far refrain from supporting BPG. Therefore, to download images by most web browsers, you need to use a special Javascript decoder.