Or it could simply rotate without decoding or re-encoding, which has the added advantage of being lossless.
Obviously it's still added processing time and (probably more importantly) development time, so it's generally not worth bothering, however it's important to point out that JPEG rotation can (in the case of 90 degree increments) be done losslessly.
Or it could simply rotate without decoding or re-encoding, which has the added advantage of being lossless.
Obviously it's still added processing time and (probably more importantly) development time, so it's generally not worth bothering, however it's important to point out that JPEG rotation can (in the case of 90 degree increments) be done losslessly.