What are different formats for image files?
• bitmap, *.bmp • uncompressed tiff, *.tif • tagged image file format • gif, *.gif • standard file format for in-line WWW images • jpeg, *.jpg, Joint Photographic Expert Group, • variable lossy compression 27. What is the relationship between Resolution and speed? With increasing resolution, the file size increases so the time required to move that file increases. • 640 x 480 x 3 =921,600 pixels • 1024 x1024 x 3 =3,145,728 pixels • 2048 x2048 x 3 =12,582,912 pixels 28. What does image compression mean? Although images should be permanently archived as raw data or with only lossless data compression, hardware and software technology exists that allows telepathology systems to compress digital images into smaller file size so that the images can be transmitted faster. 29. Why File compression is important? An image with 640×480 pixels and 24 bits color (e.g., coming from a 3CCD camera) needs 900 Kbytes of storage space; for a 3000×2000 image (typical size of a high-end digital camera), t
