Download - Common Bitmap Image File Types
COMMON BITMAP IMAGE FILE TYPES
File Size vs. Image Quality
JPEG, JPE, JPG
Best for full-color photographs Highly compressed Encoded in full color
Lossy compression Loses quality as you edit and save JPG most universally used lossy format
GIF Good for fewer colors, such as a logo Indexed format – uses up to 256 colors
o 256 = 28 referred to as 8-bit coloro Advantages
o Transparencyo Animation
PNG Two modes
Indexed Full color Lossless compression
Full and partial transparency Doesn’t support animation
XCF GIMP native format
Saves layers and other information
TIFF, TIF Full-color Non-lossy & lossless Various “dialects” of TIFF Good for keeping originals
RAW Proprietary camera formats
BMP Windows format; huge files; no advantage over
PNG or TIFF PSD
Adobe’s proprietary format ICO
Windows Icon format
IMAGE FILE CHARACTERISTI
CSGIF, JPEG, PNG, TIFF
GIF
GIF
JPEG, JPG, JPE
PNG
TIFF, TIF
COMPRESSION
BITMAP FILE FORMATS
Bitmap (Raster, Pixel) File Formats
File format Compression Full [RGB] or
Indexed Color? Transparency
Progressive? Interlace? Save in GIMP
Open in GIMP
1. Use Image/Mode/Indexed… before saving. Lossy Lossless Full Partial
GIF lossy indexed1, up to 256 colors full available yes yes
JPEG, JPG, JPE lossy full available yes yes
PNG lossless full and
indexed1, more than 256 colors
full partial
available yes yes
TIFF, TIF lossy (jpg) lossless (LZW) full yes yes
Bitmap, Raster, Pixel-based Images
Pixels Galore