How to read pixel color in a java BufferedImage with transparency

Question

I am reading pixel color in a BufferedImage as follows:

.....
InputStream is = new BufferedInputStream(conn.getInputStream());
BufferedImage image = ImageIO.         


        

Answer 1

int alpha = (colour>>24) & 0xff;

The result is also a value ranging from 0 (completely transparent) to 255 (completely opaque).