I therefore wanted to see which file format would perform the best in terms of file size by converting my ~183 MiB TIFF to each of them using ImageMagick. In terms of lossless formats, all browsers 1 support PNG, WEBP, and AVIF, while I really hope JXL support is imminent. a web-supported image format that was still lossless since it seemed a shame to ruin such a nice high-definition scan with lossy compression. Recently I needed to convert a large TIFF scan of a duochrome page into something reasonable, i.e. If you want to know how to tweak this to other needs, or know how all of this works, there's more info below the break, including more examples if you don't care about how any of this works.Īlso open for tagging suggestions for tags relevant to this kind of post read more If all you want is to make your images fit on cohost, that's it. And yes, you can drag multiple images onto this at once, so long as they're coming from the same folder. This should be very fast unless you're converting a LOT of BIG files. But once the black box window closes, it's all done. You may need to press a button (any button) after the black window pops up, I don't know why this happens. It will also have metadata stripped from it, as you probably don't want that still attached. It will be the same resolution, but now less than 5MB. Then if you drag an image onto the batch file, you will receive a small version of it right next to, wherever you dragged the image from. Open up a text editor (Notepad is fine) and paste in the following: offįOR %%A in (%*) DO magick %%A -strip -define jpeg:extent=5000kb "small_%%~nA.jpg" It's checked by default so if you mash your way through, you'll be fine. Install it normally, just make sure not to uncheck the box that says something about the path in the installer. There's a bajillion links here but you only need the first one under the Windows section, as highlighted here. We also can control exactly what kind of downscaling we're doing, to meet file size or resolution targets. Normally that involves command line fuckery, but with the power of Windows Batch Files, we can turn it into an icon that you drag your images onto and receive a downscaled image. The tool a lot of websites use to do this on their servers 1 is called ImageMagick, and it's a tool we can use too. For most people, doing this either involves an "enough to be annoying" amount of work, or trusting your upload to some random website that says it'll downscale it for you. So on Cohost and other websites, you may not be allowed to upload images past a certain size (be that resolution or filesize), and require you to send a smaller image rather than the website downscaling for you. EDIT Feb 26: I MADE A TYPO! jpeg_extent should be jpeg:extent!!! Sorry! I found this at some point and didn't change it back up.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |