3 ms·
It would be trivial to rotate a bitmap with no loss of quality, but you can’t rotate an already compressed jpg without changing the image itself, which reduces
by cookingrobot 7y ago
It would be trivial to rotate a bitmap with no loss of quality, but you can’t rotate an already compressed jpg without changing the image itself, which reduces quality.
- mrob 7y agoAssuming the image size is a multiple of the block size (8x8, 16x8, or 16x16 depending on the chroma subsampling), lossless rotation of JPEGs is possible, e.g. with jpegtran: http://jpegclub.org/jpegtran/ http://jpegclub.org/jpegtran/
- cookingrobot 7y agoReally interesting, good find.