The main advantage of lossless data compression is that we can restore the original data in its original form after the decompression. In fact, using the same service as before, we only managed to reduce the image size by 5%. Usually this data is negligible, such as waste created during image processing, but different image compressors pull data from different areas. It is Lossless (no image data is lost on save) but there's also little to no compression at all, meaning saving as BMP results in VERY large file sizes. The formats that benefit from lossless image compression are RAW, BMP, GIF, and PNG. LOSSLESS COMPRESSION stores all the information exactly, without loss of quality or accuracy, a perfect copy. TIFF, GIF, PNG and BMP images are considered as lossless formats. There are two basic compression types, lossless and lossy. Here’s an example of a lossless image compression outcome. As you can see, it’s almost identical. It can have palettes of both Indexed and Direct, but that's a small consolation. For simple graphics like it’s meant to handle, GIF is lossless - if there are more complicated photographic details, it becomes lossy, because the pallete must be forced down to 255 shades or whatever. Lossy and lossless Both 1, 8, 24, and 32 (possibly with multiple palettes) Yes Yes Yes No Yes No Yes Yes Un­known No BMP: None, RLE, JPEG, and PNG Raster 1, 4, 8, 16, 24, 32, and 64 Yes Yes No No No No No Yes No No BPG: HEVC, Lossy and lossless Raster 8 to 14 bits per channel No Yes Yes No No Yes Un­known Yes Un­known Un­known CDR This is an old format. BMP - Lossless / Indexed and Direct . This lossless compression method is best for text-heavy images and ones with a transparent background – alpha layer. Anyway saving as BMP, TIFF, and PNG can be lossless formats, but I can not see the logic in re-size and then un-sizing an image when you can have a collection of images at a variety of intermediate sizes. PS: Before I started researching it, I wondered if PNG might be sometimes-lossy, like GIF. Kompresi lossy mencapai tingkat kompresi tinggi, bahkan untuk tipe data yang biasanya tidak kompres dengan baik menggunakan kompresi lossless. Apakah ini menghapus informasi yang tidak penting. Lossless files preserve the original data and lossy loses some data as a result of being “squashed”. Here’s an example of a lossless image compression outcome. The formats that benefit from lossless image compression are RAW, BMP, GIF, and PNG. Unlike lossless image compression, lossy image compression deletes part of the original data bits in order to reduce the file size. Some examples of these formats: Images: RAW, BMP and PNG files are all lossless; JPEG and GIFs are lossy. As you can see, it’s almost identical. Saving an image and then coming back to … When the lossless compressed pictures are processed in an editing software, the data is first decompressed. 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