Apr 1, 2006, 02:16
Also Raw is considered lossless and jpg is a lossy file. Raw is uncompressed and jpg is compressed. Look at it this way. You have a 4" raw image that is made up of say 1000 pixels. 150 of those pixels are different shades of blue, 150 different shades of green and so on. What happens to the same image in jpg format, which is compressed is the same 4" images is now 700 pixels. This is because what happens is the 150 shades of blue become 80 shades of blue. The computer or processor takes the shades and eliminates or combines shades that closest resemble one another. These numbers are hypothetical. Make sense?