how to convert int array to bitmap in android? -
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i'm working @ steganography project using lsb algorithm ,i change least significant 2 bits @ every pixel other bits dependent on data want hidden when convert int array bitmap can't pixels changed .. code ...thanks
edittext text = (edittext) findviewbyid(r.id.message); string msg = text.gettext().tostring(); int msg_size=msg.length(); if(msg_size!=0) { imageview imageview = (imageview) findviewbyid(r.id.imgview); bitmap bmap = bitmap.createbitmap(imageview.getwidth(),imageview.getheight(),bitmap.config.argb_8888);//i imageview whch u want convert in bitmap canvas canvas = new canvas(bmap); imageview.draw(canvas); int width = bmap.getwidth(); int height = bmap.getheight(); int[] oned = new int[width * height]; bmap.getpixels(oned, 0, width, 0, 0, width, height); int[] byteimage = encode.encodemessage(oned, width, height, msg); byteimage[0]=(byte)msg_size; bitmap destbitmap = bitmap.createbitmap(width, height, config.argb_8888); destbitmap = destbitmap.copy(bitmap.config.argb_8888, true); for(int x = 0; x < oned.length; ++x) { oned[x]=byteimage[x]; } bitmap mimage = bmap.copy( bmap.getconfig(), bmap.ismutable()); bitmap newimage = bitmap.createbitmap(width, height, mimage.getconfig()); newimage.setpixels(oned, 0, width, 0, 0, width, height); // newimage.getpixels(byteimage, 0, width, 0, 0, width, height); //saving image in device string filename = string.valueof(calendar.getinstance().gettimeinmillis()); // generate image path string imagepath = environment.getexternalstoragedirectory().tostring() + file.separator + filename + ".jpg"; try { // save image jpg fileoutputstream out = new fileoutputstream(imagepath); // compress image jpg , pass output stream newimage.compress(bitmap.compressformat.jpeg, 90, out); // save image out.flush(); out.close(); } catch (exception error) { log.e("error saving image", error.getmessage()); } sendbroadcast(new intent(intent.action_media_mounted,uri.parse("file://" + environment.getexternalstoragedirectory()))); return 100; }// end if
have try
newimage.copypixelsfrombuffer(makebuffer(oned, oned.length)); private static intbuffer makebuffer(int[] src, int n) { intbuffer dst = intbuffer.allocate(n); (int = 0; < n; i++) { dst.put(src[i]); } dst.rewind(); return dst; } 
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