For PNGs that field is jhust ignored - so says the Android documentation Rohit
On Feb 26, 1:59 pm, mark.ka...@gmail.com wrote: > PNGs are based on vector graphics instead of raster graphics which > are used ny .jpeg, I don't think compression will work on vector > graphic files.Vector graphic files have there own compression , which > is based on graphic primitives instead of rasters/pixels. PNG's should > more fairly compact to begin with, which is one advantage of vector > formats > > Mark > > On Feb 26, 9:37 am, Rohit <mord...@gmail.com> wrote: > > > Here is a PNG file that I was using for testing.... > > >http://www.lumbercartel.ca/fun/wallpaper/lumber_cartel_1_800x600.png > > > Rohit > > > On Feb 25, 5:21 pm, Rohit <mord...@gmail.com> wrote: > > > > Has anyone seen failures from bitmap.compress() for PNG files? > > > > I have a byte array that holds image data (read from a PNG file). I > > > have verified that the image can be displayed in an ImageView by > > > getting a bitmap as follows: > > > > Bitmap bitmap = BitmapFactory.decodeByteArray(b, 0, > > > b.length); > > > > Now, if I do > > > > bitmap.compress(Bitmap.CompressFormat.PNG, 100, > > > fileoutputstream) > > > > then the compress method returns me false and the file is not written. > > > I have a valid fileoutputstream. > > > > If I start out with a JPEG image in the beginning instead of a PNG > > > then it seems to work fine. It just fails if it is a PNG image. > > > Initially I thought it was because my PNG file was in Indexed Color > > > Mode (checked it in Photoshop) but the problem persisted even if I > > > changed it to RGB Color mode. > > > > Any clue what could be the problem? > > > > If anyone has seen this please update the bug that I filed > > > :http://code.google.com/p/android/issues/detail?can=2&q=2092&colspec=I...Hide > > > quoted text - > > > - Show quoted text - > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
