Latest revision as of 11:37, 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}

@@ Line 1: / Line 1: @@
-==image file formats, an enquiry==
+=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>
@@ Line 12: / Line 14: @@
 [[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]]
+[[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>
@@ Line 26: / Line 28: @@
 [[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]]
+[[File:Manetta-social-file-formats-jpeg3.png]]<br><br>
-===.png===
+==.png==
 official name: '''Portable Network Graphics'''<br>
 owner: World Wide Web Consortium<br>
@@ Line 38: / Line 40: @@
 [[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]]
+[[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>

User:Manetta/image-file-formats-an-enquiry: Difference between revisions