hi Ashish Chandra

I think the lossy compression such as jpeg greatly reduces the size of digital image by removing excess image data and calculating a close approximation of the original image.

however, increases the possibility that the uncompressed secret text message will also be lost because of the fact that lossy compression removes what it sees as excess image data.

Feature Extraction based steganography is possible with JPG/JPEG or any lousy images.

Thanks