Pictures and Images - Revision history

WikiSysop at 22:11, 14 December 2010

2010-12-14T22:11:34Z

← Older revision		Revision as of 22:11, 14 December 2010
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	There are several common file formats for images.		There are several common file formats for images.

-	== ~~gif~~ (Graphics Interchange Format) ==	+	== GIF (Graphics Interchange Format) ==

	A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours (to 256) used for the picture and so photographs tend to become blotchy.		A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours (to 256) used for the picture and so photographs tend to become blotchy.
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	The small file size and animation capability makes this a common choice for the Internet.		The small file size and animation capability makes this a common choice for the Internet.

-	== ~~jpeg~~ or ~~jpg~~ (Joint Picture Experts Group) ==	+	== JPEG or JPG (Joint Picture Experts Group) ==

	A compressed picture format where you can trade quality for increased compression. You can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.		A compressed picture format where you can trade quality for increased compression. You can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.

-	== ~~png~~ (Portable Network Graphics) ==	+	== PNG (Portable Network Graphics) ==

	A compressed picture format that is growing in popularity and support. It supports more colours than gif and supports transparency. Older browsers still have some problems with png.		A compressed picture format that is growing in popularity and support. It supports more colours than gif and supports transparency. Older browsers still have some problems with png.

-	== ~~bmp~~ (Bit Map - Windows) ==	+	== BMP (Bit Map - Windows) ==

-	An uncompressed bit map file format used on Windows systems.	+	An uncompressed bit map file format used on Windows systems. Files tend to be large.

WikiSysop: /* jpeg or jpg (Joint Picture Experts Group) */

2010-12-14T22:03:25Z

jpeg or jpg (Joint Picture Experts Group)

← Older revision		Revision as of 22:03, 14 December 2010
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	== jpeg or jpg (Joint Picture Experts Group) ==		== jpeg or jpg (Joint Picture Experts Group) ==

-	A compressed picture format ~~that has a "lossy" compression algorithm -~~ you can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.	+	A compressed picture format where you can trade quality for increased compression. You can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.

	== png (Portable Network Graphics) ==		== png (Portable Network Graphics) ==

WikiSysop: /* bmp (Bit Map - Windows) */

2010-12-14T21:59:19Z

bmp (Bit Map - Windows)

← Older revision		Revision as of 21:59, 14 December 2010
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	== bmp (Bit Map - Windows) ==		== bmp (Bit Map - Windows) ==

-	An ~~umcompressed~~ bit map file format used on Windows systems.	+	An uncompressed bit map file format used on Windows systems.

81.103.198.113: /* File Formats */

2010-12-14T21:53:09Z

File Formats

← Older revision		Revision as of 21:53, 14 December 2010
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	== File Formats ==		== File Formats ==
		+	There are several common file formats for images.

	== gif (Graphics Interchange Format) ==		== gif (Graphics Interchange Format) ==

81.103.198.113: /* gif (Graphics Interchange Format) */

2010-12-14T21:51:28Z

gif (Graphics Interchange Format)

← Older revision		Revision as of 21:51, 14 December 2010
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	== gif (Graphics Interchange Format) ==		== gif (Graphics Interchange Format) ==

-	A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours used for the picture and so photographs tend to become blotchy.	+	A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours (to 256) used for the picture and so photographs tend to become blotchy.

-	The small file size makes this a common choice for the Internet.	+	GIF supports animation natively.
		+
		+	The small file size and animation capability makes this a common choice for the Internet.

	== jpeg or jpg (Joint Picture Experts Group) ==		== jpeg or jpg (Joint Picture Experts Group) ==

Grey at 08:51, 13 December 2010

2010-12-13T08:51:57Z

← Older revision		Revision as of 08:51, 13 December 2010
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	== png (Portable Network Graphics) ==		== png (Portable Network Graphics) ==

-	A compressed picture format that is growing in popularity.	+	A compressed picture format that is growing in popularity and support. It supports more colours than gif and supports transparency. Older browsers still have some problems with png.

	== bmp (Bit Map - Windows) ==		== bmp (Bit Map - Windows) ==

	An umcompressed bit map file format used on Windows systems.		An umcompressed bit map file format used on Windows systems.

Grey at 08:32, 13 December 2010

2010-12-13T08:32:36Z

← Older revision		Revision as of 08:32, 13 December 2010
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	== File Formats ==		== File Formats ==

-	~~'''~~gif (Graphics Interchange Format)~~'''~~	+	== gif (Graphics Interchange Format) ==

	A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours used for the picture and so photographs tend to become blotchy.		A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours used for the picture and so photographs tend to become blotchy.
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	The small file size makes this a common choice for the Internet.		The small file size makes this a common choice for the Internet.

-	~~'''~~jpeg or jpg (Joint Picture Experts Group)~~'''~~	+	== jpeg or jpg (Joint Picture Experts Group) ==

	A compressed picture format that has a "lossy" compression algorithm - you can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.		A compressed picture format that has a "lossy" compression algorithm - you can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.

-	~~'''~~png (Portable Network Graphics)~~'''~~	+	== png (Portable Network Graphics) ==

	A compressed picture format that is growing in popularity.		A compressed picture format that is growing in popularity.

-	~~'''~~bmp (Bit Map - Windows)~~'''~~	+	== bmp (Bit Map - Windows) ==

	An umcompressed bit map file format used on Windows systems.		An umcompressed bit map file format used on Windows systems.

WikiSysop: Created page with "There are several common formats for images. On the Windows operating system the image file type can be determined from the file name extension: filename.'''ext''' Here '''ext'..."

2010-12-12T21:17:17Z

Created page with "There are several common formats for images. On the Windows operating system the image file type can be determined from the file name extension: filename.'''ext''' Here '''ext'..."

New page

There are several common formats for images. On the Windows operating system the image file type can be determined from the file name extension:

filename.'''ext'''

Here '''ext''' would be the file extension (or secondary file name).

== File Formats ==

'''gif (Graphics Interchange Format)'''

A compressed picture format suited to drawing graphics rather than photographs. It creates very small files. It limits the number of colours used for the picture and so photographs tend to become blotchy.

The small file size makes this a common choice for the Internet.

'''jpeg or jpg (Joint Picture Experts Group)'''

A compressed picture format that has a "lossy" compression algorithm - you can decide on a scale 1-255 how much compression takes place, but the more compression, the lower the quality of the image.

'''png (Portable Network Graphics)'''

A compressed picture format that is growing in popularity.

'''bmp (Bit Map - Windows)'''

An umcompressed bit map file format used on Windows systems.