Android Edit Bitmap Channels

Question

It\'s possible to access the alpha channel of a given bitmap with extractAlpha(), but I haven\'t been able to find any way to actually set the alpha channel of

Answer 1

Manipulating Bitmaps is a farily simple thing, when to access the pixel (bytes) directly. To do that in Android you can do it over this approch

ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
bitmap.compress(Bitmap.CompressFormat.PNG, 100, bos); 
byte[] b = bos.toByteArray();  

Now you can do any image manipulation, tranformation or combination you like.

I hope this is what you were looking for.