It depends of course on what you are trying to do, but if you can initially store the large file as a set of tiles, then you may be able to avert the memory issue, although it would make your code more complex.
Yusuf Saib Android ·T· · ·Mobile· stick together The views, opinions and statements in this email are those of the author solely in their individual capacity, and do not necessarily represent those of T-Mobile USA, Inc. On Apr 20, 10:51 am, Michael MacDonald <[email protected]> wrote: > I don't think there is much to help you do this kind of processing on a > whole large image at once within the phone on the current SDK. > > I think you might have to read a part of the image, process it, and > write it out filter style, implementing all the image > compression/decompression yourself. > > Or you could determine what processing needs to be done on the phone, > and post the image to a server to do the actual processing. > > > > Streets Of Boston wrote: > > Bump again... sorry for that, but i don't know any other place to ask > > this question. > > > On Apr 13, 8:46 pm, Streets Of Boston <[email protected]> wrote: > > >> Hi everyone, > > >> I managed to handle a full size image (2048x1536) (moving around, > >> zooming, some colorfilters, etc). However, i can only load these > >> images in memory as RGB_565, one at a time. I try to free as much > >> bitmap memory as possible (by recycling every possible bitmap cached/ > >> open in my app), and then load the full-sized image in RGB_565 format. > >> This works well. > > >> The user can make some modifications (color balance, brightness, etc) > >> and I like to save the resulting image in a JPEG file. However, on > >> screen, all edits are shown in RGB_565. You can see the posterization > >> because of the reduced pixel-depth. The quality degradation on the > >> screen is a minor problem. My main problem is to apply these edits to > >> the actual and higher quality ARGB_8888 data of the original JPEG > >> file. > > >> Trying to load a ARGB_8888 JPEG file with size 2048x1536 is not > >> possible. I get an out-of-memory error. > >> Is there any way to apply color-filters to ARGB_8888 data (instead of > >> RGB_565) so that i won't lose a lot of image-quality when trying to > >> save modifications into a JPEG file? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
