User:Manetta/image-file-formats-an-enquiry: Difference between revisions
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== | =image file formats, a little enquiry= | ||
''An image file format may store data in uncompressed, compressed, or vector formats. Once rasterized, an image becomes a grid of pixels, each of which has a number of bits to designate its color equal to the color depth of the device displaying it. [http://en.wikipedia.org/wiki/Image_file_formats]'' | |||
==.bmp== | ==.bmp== | ||
official name: '''Windows bitmap'''<br> | |||
owner: Microsoft<br> | |||
file extension: .bmp, .dib, .rle, .2bp (2bpp)<br> | |||
mime-type: image/x-bmp<br> | |||
application: Used by many 2D applications.<br> | |||
patented: NO<br> | |||
[[File:Manetta-social-file-formats-bmp1.png]]<br><br> | |||
[[File:Manetta-social-file-formats-bmp2.png]]<br><br> | |||
[[File:Manetta-social-file-formats-bmp3.png]]<br><br> | |||
==.jpg / .jpeg== | ==.jpg / .jpeg== | ||
official name: '''Joint Photographic Experts Group'''<br> | |||
owner: Joint Photographic Experts Group<br> | |||
file extension: .jpg, .jpeg, .jpe (containers: .jif, .jfif, .jfi)<br> | |||
mime-type: image/jpeg<br> | |||
application: Photographic images. Supported by most web browsers.<br> | |||
patented: Expired (see also Forgent#JPEG)<br> | |||
--> JPEG 2000 ? | |||
[[File:Manetta-social-file-formats-jpeg1.png]]<br><br> | |||
[[File:Manetta-social-file-formats-jpeg2.png]]<br><br> | |||
[[File:Manetta-social-file-formats-jpeg3.png]]<br><br> | |||
==.png== | ==.png== | ||
official name: '''Portable Network Graphics'''<br> | |||
owner: World Wide Web Consortium<br> | |||
file extension: .png<br> | |||
mime-type: image/png<br> | |||
application: W3C endorsed replacement for GIF. Supported by most web browsers.<br> | |||
patented: NO<br> | |||
[[File:Manetta-social-file-formats-png1.png]]<br><br> | |||
[[File:Manetta-social-file-formats-png2.png]]<br><br> | |||
[[File:Manetta-social-file-formats-png3.png]]<br><br> | |||
==.bmp / .jpg / .png== | |||
comparing one file in different formats, different langauges and amounts of bytes<br><br> | |||
[[File:Manetta-bmp-720028bytes.png]]<br> | |||
<sub>bmp and its 720028 bytes, the big guy</sub><br><br> | |||
[[File:Manetta-jpg-176391bytes.png]]<br> | |||
<sub>jpg and its 176391 bytes, the mediocre guy</sub><br><br> | |||
[[File:Manetta-png-4532bytes.png]]<br> | |||
<sub>png and its 4532 bytes, the light guy</sub><br><br> | |||
Latest revision as of 12:37, 30 September 2014
image file formats, a little enquiry
An image file format may store data in uncompressed, compressed, or vector formats. Once rasterized, an image becomes a grid of pixels, each of which has a number of bits to designate its color equal to the color depth of the device displaying it. [1]
.bmp
official name: Windows bitmap
owner: Microsoft
file extension: .bmp, .dib, .rle, .2bp (2bpp)
mime-type: image/x-bmp
application: Used by many 2D applications.
patented: NO
.jpg / .jpeg
official name: Joint Photographic Experts Group
owner: Joint Photographic Experts Group
file extension: .jpg, .jpeg, .jpe (containers: .jif, .jfif, .jfi)
mime-type: image/jpeg
application: Photographic images. Supported by most web browsers.
patented: Expired (see also Forgent#JPEG)
--> JPEG 2000 ?
.png
official name: Portable Network Graphics
owner: World Wide Web Consortium
file extension: .png
mime-type: image/png
application: W3C endorsed replacement for GIF. Supported by most web browsers.
patented: NO
.bmp / .jpg / .png
comparing one file in different formats, different langauges and amounts of bytes
bmp and its 720028 bytes, the big guy
jpg and its 176391 bytes, the mediocre guy
png and its 4532 bytes, the light guy