How do you enlarge a picture without losing its quality?
it is very difficult to do. Given that an image is made up of pixels (little colored squares, essentially) when you enlarge a picture you are, in essence, making the little squares into bigger sqares, which diminishes image quality. The smaller the resolution of the original picture (176×144 is very small) the more noticeable the pixelation is. This is why it is so important, when buying a digital camera, to get the resolution you need. I routinely get 1600×1200 resolution on my camera (and can get higher if needed) which gives me a lot of flexibility to upsize and downsize pictures. the short answer is, I don’t think there is a good reliable way to get a picture of the size you are talking about enlarged without serious degradation.