TIFF is basically a bitmap format (1 pixel = 1 byte per color value, so 1 pixel = 3 bytes for a 24-bit image). TIFF does have a compression option,
PNG is a lossless compression, not unlike a ZIP archive, but with an efficient compression algorithm. Though not a perfect analogy, 1 pixel <= 3 bytes. PNG also supports an alpha layer (transparency), which isn't important unless you want it to be. For example, I just took a screenshot of my desktop. Screen resolution is 1920x1080 @ 32-bit, so 8,294,400 bytes of pixel information are required (1920x1080 pixels * 4 bytes per pixel (RGB values + alpha value)) . The corresponding PNG came out to 1,969,094 bytes, whereas an equivalent TIFF with built-in compression is 2,371,201 bytes. An uncompressed TIF is 8,294,843 bytes, slightly larger than the raw pixel information. There may be use cases where TIF is a better option, but for the lay person, PNG is better. Cheers, -Matt Sent from ProtonMail, Swiss-based encrypted email. >-------- Original Message -------- >Subject: png or tiff >Local Time: November 12, 2017 6:28 AM >UTC Time: November 12, 2017 1:28 PM >From: bmi...@gmail.com >To: PLUG <plug-discuss@lists.phxlinux.org> > >it was recommended to me to save lossless pictures as PNG. why not TIFF? > >-- >:-)~MIKE~(-: > --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: http://lists.phxlinux.org/mailman/listinfo/plug-discuss
