TIsophote - Revision history

Reel.Deal: fix link

2016-07-02T12:45:23Z

fix link

Reel.Deal: archived link

2016-02-13T23:37:38Z

archived link

Reel.Deal: /* Syntax and Parameters */ typo

2016-01-03T17:47:20Z

‎Syntax and Parameters: typo

Reel.Deal: add documentation

2016-01-02T11:40:00Z

add documentation

Raffriff42: redirect for convenient searching

2015-11-08T00:14:10Z

redirect for convenient searching

New page

#REDIRECT [[External_filters#Anti-aliasing]]
{{FilterCat|External_filters|Restoration_filters|Anti-aliasing}}

@@ Line 3: / Line 3: @@
 | {{Author/tritical}}
 | v0.9.1
-| 3=[http://web.archive.org/web/20151125175557/http://bengal.missouri.edu/~kes25c/TIsophotev091.zip TIsophotev091.zip]
+| 3=[http://web.archive.org/web/20070222162751/http://bengal.missouri.edu/~kes25c/TIsophotev091.zip TIsophotev091.zip]
 | 4=Anti-aliasing
 | 5=[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]

@@ Line 3: / Line 3: @@
 | {{Author/tritical}}
 | v0.9.1
-| 3=[http://bengal.missouri.edu/~kes25c/TIsophotev091.zip TIsophotev091.zip]
+| 3=[http://web.archive.org/web/20151125175557/http://bengal.missouri.edu/~kes25c/TIsophotev091.zip TIsophotev091.zip]
 | 4=Anti-aliasing
 | 5=[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]

@@ Line 32: / Line 32: @@
 :::Sets how the needed derivatives are calculated.
-:::*type 0 - simplest possible estimate of both first and second derivatives (fastest, probably best clean video).
+:::*type 0 - simplest possible estimate of both first and second derivatives (fastest, probably best for clean video).
 :::*type 1 - sobel operator for first derivatives, simple estimate for second (in-between 0 and 2 speed wise and noise wise).
 :::*type 2 - sobel operator for first and similar inherent denoising operator for second (slowest, probably best for noisy video).

← Older revision		Revision as of 11:40, 2 January 2016
Line 1:		Line 1:
−	~~#REDIRECT [[~~External_filters#Anti-aliasing]]	+	{{FilterCat4\|External_filters\|Plugins\|Restoration_filters\|Anti-aliasing}}
−	{{~~FilterCat~~\|~~External_filters~~\|~~Restoration_filters~~\|Anti-aliasing}}	+	{{Filter3
		+	\| {{Author/tritical}}
		+	\| v0.9.1
		+	\| 3=[http://bengal.missouri.edu/~kes25c/TIsophotev091.zip TIsophotev091.zip]
		+	\| 4=Anti-aliasing
		+	\| 5=[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
		+	\| 6=
		+	}}
		+
		+	== Description ==
		+	[[TIsophote]] is a level-set (isophote) smoothing filter. It does simple unconstrained level-set smoothing. Basically, it can smooth jagged edges in an image. If over used it will remove jagged edges as well as object features and eventually completely eliminate all level curves. For a more in-depth explanation see the technical info towards the bottom of the help file. Or for more info (includes information besides simple unconstrained smoothing): [http://web.archive.org/web/20100611214521/http://neuron2.net/library/LSImageReconstruction.pdf LSImageReconstruction.pdf].<br>
		+	<br>
		+	== Requirements ==
		+	* AviSynth 2.5.8 or [http://sourceforge.net/projects/avisynth2/ greater]
		+	* [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F\|Progressive]] input only
		+	* Supported color formats: [[YUY2]], [[YV12]]
		+	<br>
		+	== [[Script variables\|Syntax and Parameters]] ==
		+	:{{Template:FuncDef\|TIsophote (clip, int "iterations", float "tStep", int "type", bool "chroma")}}
		+	<br>
		+	::{{Par2\|c\|clip\| }}
		+	:::Input clip to be processed.
		+	<br>
		+	::{{Par2\|iterations\|int\|4}}
		+	:::Sets the number of iterations used. More iterations will take more processing time. Increasing the number of iterations while holding tStep constant will result in more and more shortening of the level curves. Total 'time' of the filter is equal to - iterations*tStep. iterations must be set to at least 1.
		+	<br>
		+	::{{Par2\|tStep\|float\|0.2}}
		+	:::Sets the update per iteration. At 1.0, each iteration is a full cycle of the flow equation. At 0, the original image is always returned. Generally, lower values produce more "stable" flow but require more iterations. Recommended values are between 0.1 and 0.5, though setting this to 1.0 is usually ok and simply results in an extra overall smoothing. While this value can be anything, it really only makes sense when it is 0.0 <= tStep <= 1.0, other values will generally result in garbage output. This setting could be seen as a strength of smoothing per iteration setting (1.0 being strongest, 0.0 being nothing). Note: technically for long run numerical stability this value must be less then 0.25!
		+	<br>
		+	::{{Par2\|type\|int\|2}}
		+	:::Sets how the needed derivatives are calculated.
		+
		+	:::*type 0 - simplest possible estimate of both first and second derivatives (fastest, probably best clean video).
		+	:::*type 1 - sobel operator for first derivatives, simple estimate for second (in-between 0 and 2 speed wise and noise wise).
		+	:::*type 2 - sobel operator for first and similar inherent denoising operator for second (slowest, probably best for noisy video).
		+	<br>
		+	::{{Par2\|chroma\|bool\|false}}
		+	:::If set to true the chroma planes are processed. If set to false the chroma planes from the source are simply copied to the output frame.
		+	<br>
		+
		+	== Examples ==
		+	TIsophote with default settings:
		+	[[AviSource]]("Blah.avi")
		+	TIsophote(iterations=2, tStep=0.2, type=2, chroma=false)
		+	<br>
		+	== Changelog ==
		+	Version Date Changes<br>
		+	v0.9.1 07/24/2004 - Changed default values for iterations, type, and chroma parameters
		+	- Fixed incorrect clipping for values below 0. Pixel values were clipped
		+	to 0-255 range but values below 0 were getting clipped to abs(pixel)
		+	instead of 0 which would lead to artifacts.<br>
		+	v0.9 06/25/2004 - Initial release
		+	<br>
		+	== External Links ==
		+	<br>
		+	<br>
		+	-----------------------------------------------
		+	'''Back to [[External_filters#Anti-aliasing\|External Filters]] ←'''