which digital image format compresses the image file?
Some digital cameras can save images in TIFF format, using the LZW compression algorithm for lossless storage. TIFF image format is not widely supported by web browsers. TIFF remains widely accepted as a photograph file standard in the printing business.
PNG is also a popular file format. The size of a PNG image is bigger than JPEG's but smaller than BMP's. PNG's compression is among the best available amount lossless image formats. Advantages of PNG format: 1  Pretty good compression ratio (not as good a JPEG though).