Tcanny - Revision history

Reel.Deal: /* Archived Downloads */ strike

2016-07-02T12:40:49Z

‎Archived Downloads: strike

Reel.Deal: link

2016-06-11T01:08:29Z

link

Reel.Deal: remove space

2016-02-16T02:24:44Z

remove space

Reel.Deal: minor formatting

2014-09-21T07:46:36Z

minor formatting

Reel.Deal: /* Examples */

2014-08-09T15:48:00Z

‎Examples

Reel.Deal: author

2014-08-04T17:47:48Z

author

Reel.Deal: /* Archived Downloads */

2014-08-04T17:43:46Z

‎Archived Downloads

Reel.Deal: tcanny

2014-08-04T14:50:49Z

tcanny

New page

[[Category:Plugins]]
{{FilterCat|External_filters|Other_filters|Edge_Detection}}
{{Filter3
| {{Author/Chikuzen}}
| v1.0
|[http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]
| Edge Detection
| [http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
|}}
 
== Description ==
:<tt>tcanny</tt> contains a Canny edge detection filter and distance transform filter.
 

== Requirements ==
:- AviSynth 2.5.8 or greater
:- Supported color formats: [[YUY2]], [[YV12]]
 
== [[Script variables|Syntax and Parameters]] ==
 
=== tcanny ===
Builds an edge map using Canny edge detection.
 
 
:{{Template:FuncDef|tcanny(clip, float "sigma", float "t_h", float "t_l", int "nms", int "mode", int "plane", float "gmmax")}}
 
::{{Par2| |clip| }}
:::Input clip; only YUY2 and YV12 are supported.
 
::{{Par2|sigma|float|1.5}}
:::Standard deviation of Gaussian blur. 0 means no blurring before edge detection.
 
::{{Par2|t_h|float|8.0}}
:::High gradient magnitude threshold for hysteresis.
 
::{{Par2|t_l|float|1.0}}
:::Low gradient magnitude threshold for hysteresis.
 
::{{Par2|nms|int|3}}
:::Byte mask choosing non-maxima suppression method(s).

::::If (nms&1) - if pixel is maxima along nearest integer direction then keep.
::::If (nms&3) - if pixel is maxima along linearly interpolated direction then keep.
 
::{{Par2|mode|int|0}}
:::Sets the output format:

::::*0 : thresholded edge map (255 for edge, 0 for non-edge)
::::*1 : gradient magnitude map. Scaled to 0-255 range based on {{Template:FuncDef3|gmmax}}.
::::::pixel_val = min(grad_mag*255/{{Template:FuncDef3|gmmax}},255)
::::*2 : edge pixel only gradient direction map (non-edge pixels set to 0)
::::*3 : gradient direction map
<blockquote style="width: 50%;">
<pre>
Gradient direction maps discretize [0-180) degree range into 256 bins.

0 = [000.000-000.351}
1 = [000.351-001.054)
.
.
.
255 = [179.648-180.000)

135 90 45
\ | /
180 -- -- 0
/ | \
45 90 135

* This is the gradient direction, so the line direction
is orthogonal to it (90 degree rotation). It only goes
through 180 because for this case:

180+n = n, 0 <= n < 180</pre></blockquote>
 
::{{Par2|plane|int|1}}
:::Byte mask indicating which planes to process. If a plane isn't processed then it is copied through as is.

::::if (plane&1) - process Y
::::if (plane&2) - process U
::::if (plane&4) - process V
 
::{{Par2|gmmax|float|50.0}}
:::Used for scaling gradient magnitude into [0,255] for {{Template:FuncDef3|mode}}=1.
:::{{Template:FuncDef3|gmmax}} is internally set to 1.0 if you set it to < 1.0.
 
-------------
 
=== tdtrans ===
Performs a distance transformation on an edge map. This filter assumes the input image is 0 for non-edge pixels, and > 0 for edge pixels. 
The distance transform sets each pixel equal to the distance from it to the nearest edge pixel.
 
 
:{{Template:FuncDef|tdtrans (clip, int "mode", int "plane")}}
 
::{{Par2| |clip| }}
:::Input clip; only YUY2 and YV12 are supported.
 
::{{Par2|mode|int|1}}
:::Sets distance type.

::::*0 - city block
::::*1 - euclidean

::::: * For the euclidean case the distance is rounded to the nearest integer.
::::: * For both cases distances greater than 255 are set to 255.
 
::{{Par2|plane|int|1}}
:::Byte mask indicating which planes to process. Same as in {{Template:FuncDef3|tcanny}}.
 

== Examples ==
{{Template:FuncDef3|tcanny}} with default settings:
[[AviSource]]("blah.avi")
TCannyMod (sigma=1.5, t_h=8.0, t_l=1.0, nms=3, mode=0, plane=1, gmmax=50.0)
 
{{Template:FuncDef3|tdtrans }} with default settings:
[[AviSource]]("blah.avi")
GBlur (mode=1, plane=1)
 
== Changelog ==
Version Date Changes 
v1.0 06/03/2009 - Initial release
 

== Archived Downloads ==
{| class="wikitable" border="1"; width="600px"
|-
!!width="100px"| Version
!!width="150px"| Download
!!width="150px"| Mirror
|-
!v1.0
|[http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]
|[http://web.archive.org/web/20140804144614/http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]
|
|}
 

== External Links ==
 
 
 
-----------------------------------------------
'''Back to [[External_filters#Edge_Detection|External Filters]] ←'''

@@ Line 1: / Line 1: @@
 {{FilterCat4|External_filters|Plugins|Other_filters|Edge_detection}}
 {{Filter3
 | {{Author/tritical}}
@@ Line 8: / Line 7: @@
 | [http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
 |}}
-<br>
 == Description ==
 <tt>tcanny</tt> contains a Canny edge detection filter and distance transform filter.<br>

@@ Line 1: / Line 1: @@
-[[Category:Plugins]]
+{{FilterCat4|External_filters|Plugins|Other_filters|Edge_detection}}
-{{FilterCat|External_filters|Other_filters|Edge_Detection}}
 {{Filter3
 | {{Author/tritical}}
@@ Line 10: / Line 10: @@
 <br>
 == Description ==
-:<tt>tcanny</tt> contains a Canny edge detection filter and distance transform filter.
+<tt>tcanny</tt> contains a Canny edge detection filter and distance transform filter.<br>
 <br>
 == Requirements ==
-:- AviSynth 2.5.8 or [http://forum.doom9.org/showthread.php?t=168764 greater]
+* AviSynth 2.5.8 or [http://forum.doom9.org/showthread.php?t=168764 greater]
-:- Supported color formats: [[YUY2]], [[YV12]]
+* Supported color formats: [[YUY2]], [[YV12]]
 <br>
 == [[Script variables|Syntax and Parameters]] ==
@@ Line 139: / Line 139: @@
 == External Links ==
 <br>
 <br>
 -----------------------------------------------
 '''Back to [[External_filters#Edge_Detection|External Filters]] &larr;'''

@@ Line 132: / Line 132: @@
 |-
 !v1.0
-|[http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]
+|<strike>[http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]</strike>
 |[http://web.archive.org/web/20140804144614/http://bengal.missouri.edu/~kes25c/tcanny.zip tcanny.zip]
 |}

@@ Line 113: / Line 113: @@
 {{Template:FuncDef3|tcanny}} with default settings:
   [[AviSource]]("blah.avi")
-  TCannyMod (sigma=1.5, t_h=8.0, t_l=1.0, nms=3, mode=0, plane=1, gmmax=50.0)
+  TCannyMod(sigma=1.5, t_h=8.0, t_l=1.0, nms=3, mode=0, plane=1, gmmax=50.0)
 <br>
 {{Template:FuncDef3|tdtrans }} with default settings:
   [[AviSource]]("blah.avi")
-  GBlur (mode=1, plane=1)
+  tdtrans(mode=1, plane=1)
 <br>
 == Changelog ==
   Version      Date            Changes<br>