Hello, I would appreciate to hear from you what would be the available options in Android to perform a lossless jpeg rotation of a jpeg image -> Rearranging the image data from landscape to portrait by rotation without ever fully decoding the image.
My problem is that my device's camera always take the images in landscape mode and sometimes I would need to rotate the image to portrait to be used in my application. This takes time and memory if I need to do it in the standard way (decode the image, apply rotation operation to the pixels and encode again). Doing it without decoding the image would bring a significant improvement in performance. I have seen that in Android platform (Cupcake) jpegtran.c (which performs this operation beautifully) is available under /external/jpeg but this functionality is not available (a.f.a.k) on the application framework. How can I use this function? I guess I need to use JNI to be able to access this functionality, right? Other ways? Could you give me any hint on how I could do this or if there is another easier and quicker way to do it? Thank you in advance for any reply. R. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
