👉 JPEG (Joint Photographic Experts Group) engineering is a sophisticated method for compressing photographic images, balancing high visual quality with efficient storage and transmission. It employs a combination of lossy compression techniques, starting with the Discrete Cosine Transform (DCT) to convert spatial image data into frequency components, followed by quantization to reduce the precision of these components, and finally entropy coding using Huffman coding or arithmetic coding to further compress the data. This multi-step process allows JPEG to significantly reduce file sizes while maintaining perceptual image quality, making it ideal for web images and digital photography where bandwidth and storage are critical considerations.
