Java image processing - accessing pixel data

[JewishDan18]

Originally Posted by davidthefat

It is possible to do it. The Image class has a pointer to the jpeg image in memory named "Image". It is a public field and did not catch that it was there the first 2 years. You just decode that data into raw bytes and then you can access as you want to as "pixels".

This is far, far easier said than done. A jpeg image is by its nature compressed. To access the data, you would need to decompress it, which would take a very long time to do. Instead of only accessing the pixels you need, you would have to access all of them. You can read a little more about it here

https://en.wikipedia.org/wiki/JPEG