|
|
You're in the
dotnet drawing api
group:Sparkling Lasoo Wand Tool !
dotnet drawing api:
Similar to the sparkling wand mask tools in Photoshop and the likes... Hopefully to return a region object. Any pointers ? Any ideas ?
The accumulation of the points would be done in the classic way. See various
implementations of Scribble C#. The "marching ants" lasso can be drawn using a GraphicsPath taken from the points gathered and using a custom brush that changes the custom dash pattern a fwe times a second. -- Bob Powell [MVP] Visual C#, System.Drawing Ramuseco Limited .NET consulting http://www.ramuseco.com Find great Windows Forms articles in Windows Forms Tips and Tricks http://www.bobpowell.net/tipstricks.htm Answer those GDI+ questions with the GDI+ FAQ http://www.bobpowell.net/faqmain.htm All new articles provide code in C# and VB.NET. Subscribe to the RSS feeds provided and never miss a new article. [quoted text, click to view] "ohs" <ohs@discussions.microsoft.com> wrote in message news:75A525D0-FB3A-4C64-918D-3B45BBEB09D5@microsoft.com... > I'm looking for a way to 'Lasoo' a section of an image. > > Similar to the sparkling wand mask tools in Photoshop and the likes... > > Hopefully to return a region object. > > Any pointers ? > > > > > > Any ideas ? >
The 'Classic Way' ?
What / where is Scribble C# ? Do you mean the MS freehand drawing demo ? Sorry don't think my original post was clear... the key was in the 'sparkling wand'. I didn't want to elaborate incase I steered the response in the wrong direction. What I need is the functionality of a tool that when clicked on an point on an image 'lasoos' a Region of similar coloured pixels (possibley with some form of edge detection). A basic implementation would be to create a Region from a blue circle (of unknown location and dimension) on a green background. Ultimately I would like to be able to tune the detection parameters to mask a photographic object, say a face in a portrait. Does that make more sense ? [quoted text, click to view] "Bob Powell [MVP]" wrote:
> The accumulation of the points would be done in the classic way. See various > implementations of Scribble C#. > > The "marching ants" lasso can be drawn using a GraphicsPath taken from the > points gathered and using a custom brush that changes the custom dash > pattern a fwe times a second. > > -- > Bob Powell [MVP] > Visual C#, System.Drawing > > Ramuseco Limited .NET consulting > http://www.ramuseco.com > > Find great Windows Forms articles in Windows Forms Tips and Tricks > http://www.bobpowell.net/tipstricks.htm > > Answer those GDI+ questions with the GDI+ FAQ > http://www.bobpowell.net/faqmain.htm > > All new articles provide code in C# and VB.NET. > Subscribe to the RSS feeds provided and never miss a new article. > > > > "ohs" <ohs@discussions.microsoft.com> wrote in message > news:75A525D0-FB3A-4C64-918D-3B45BBEB09D5@microsoft.com... > > I'm looking for a way to 'Lasoo' a section of an image. > > > > Similar to the sparkling wand mask tools in Photoshop and the likes... > > > > Hopefully to return a region object. > > > > Any pointers ? > > > > > > > > > > > > Any ideas ? > > > >
Tried that already.
Inspiration ? It gave me a huge headache ! Couldn't follow it there's so many variables and constants. Any more ideas folks ? [quoted text, click to view] "SharpCoderMP" wrote:
> take a look at code behind paint.net - guys did great job there, you can > find lots of inspiration as the source code is made public available. > though i imagine you may get a bit confused when you first time take a > look at their code ;) > > ohs wrote: > > The 'Classic Way' ? > > What / where is Scribble C# ? Do you mean the MS freehand drawing demo ? > > > > Sorry don't think my original post was clear... the key was in the > > 'sparkling wand'. > > > > I didn't want to elaborate incase I steered the response in the wrong > > direction. > > > > What I need is the functionality of a tool that when clicked on an point on > > an image 'lasoos' a Region of similar coloured pixels (possibley with some > > form of edge detection). > > > > A basic implementation would be to create a Region from a blue circle (of > > unknown location and dimension) on a green background. > > > > Ultimately I would like to be able to tune the detection parameters to mask > > a photographic object, say a face in a portrait. > > > > Does that make more sense ? > > > > > > "Bob Powell [MVP]" wrote: > > > >> The accumulation of the points would be done in the classic way. See various > >> implementations of Scribble C#. > >> > >> The "marching ants" lasso can be drawn using a GraphicsPath taken from the > >> points gathered and using a custom brush that changes the custom dash > >> pattern a fwe times a second. > >> > >> -- > >> Bob Powell [MVP] > >> Visual C#, System.Drawing > >> > >> Ramuseco Limited .NET consulting > >> http://www.ramuseco.com > >> > >> Find great Windows Forms articles in Windows Forms Tips and Tricks > >> http://www.bobpowell.net/tipstricks.htm > >> > >> Answer those GDI+ questions with the GDI+ FAQ > >> http://www.bobpowell.net/faqmain.htm > >> > >> All new articles provide code in C# and VB.NET. > >> Subscribe to the RSS feeds provided and never miss a new article. > >> > >> > >> > >> "ohs" <ohs@discussions.microsoft.com> wrote in message > >> news:75A525D0-FB3A-4C64-918D-3B45BBEB09D5@microsoft.com... > >>> I'm looking for a way to 'Lasoo' a section of an image. > >>> > >>> Similar to the sparkling wand mask tools in Photoshop and the likes... > >>> > >>> Hopefully to return a region object. > >>> > >>> Any pointers ? > >>> > >>> > >>> > >>> > >>> > >>> Any ideas ? > >>> > >> > >>
take a look at code behind paint.net - guys did great job there, you can
find lots of inspiration as the source code is made public available. though i imagine you may get a bit confused when you first time take a look at their code ;) [quoted text, click to view] ohs wrote:
> The 'Classic Way' ? > What / where is Scribble C# ? Do you mean the MS freehand drawing demo ? > > Sorry don't think my original post was clear... the key was in the > 'sparkling wand'. > > I didn't want to elaborate incase I steered the response in the wrong > direction. > > What I need is the functionality of a tool that when clicked on an point on > an image 'lasoos' a Region of similar coloured pixels (possibley with some > form of edge detection). > > A basic implementation would be to create a Region from a blue circle (of > unknown location and dimension) on a green background. > > Ultimately I would like to be able to tune the detection parameters to mask > a photographic object, say a face in a portrait. > > Does that make more sense ? > > > "Bob Powell [MVP]" wrote: > >> The accumulation of the points would be done in the classic way. See various >> implementations of Scribble C#. >> >> The "marching ants" lasso can be drawn using a GraphicsPath taken from the >> points gathered and using a custom brush that changes the custom dash >> pattern a fwe times a second. >> >> -- >> Bob Powell [MVP] >> Visual C#, System.Drawing >> >> Ramuseco Limited .NET consulting >> http://www.ramuseco.com >> >> Find great Windows Forms articles in Windows Forms Tips and Tricks >> http://www.bobpowell.net/tipstricks.htm >> >> Answer those GDI+ questions with the GDI+ FAQ >> http://www.bobpowell.net/faqmain.htm >> >> All new articles provide code in C# and VB.NET. >> Subscribe to the RSS feeds provided and never miss a new article. >> >> >> >> "ohs" <ohs@discussions.microsoft.com> wrote in message >> news:75A525D0-FB3A-4C64-918D-3B45BBEB09D5@microsoft.com... >>> I'm looking for a way to 'Lasoo' a section of an image. >>> >>> Similar to the sparkling wand mask tools in Photoshop and the likes... >>> >>> Hopefully to return a region object. >>> >>> Any pointers ? >>> >>> >>> >>> >>> >>> Any ideas ? >>> >>
how about a recursive function, starting with the pixel you click on like
sorry for the rubbish pseudo code :) function CheckPixel (pixel start_ pixel) for each adjacent pixel as adj_pixel if pixel passes criteria (e.g in colour range) include pixel in selection CheckPixel(adj_pixel) if not recursion unravels. (do nothing) I guess you'd have to calculate the outerbounds of the selected pixels somehow as well. Also, it may be a bit overkill to use recursion, perhaps it would lead to stack overflows and the like :) Andrew [quoted text, click to view] "ohs" <ohs@discussions.microsoft.com> wrote in message news:87942771-6735-460C-A91B-E363910F5E7D@microsoft.com... > Tried that already. > > Inspiration ? > > It gave me a huge headache ! > Couldn't follow it there's so many variables and constants. > > Any more ideas folks ? > > > "SharpCoderMP" wrote: > >> take a look at code behind paint.net - guys did great job there, you can >> find lots of inspiration as the source code is made public available. >> though i imagine you may get a bit confused when you first time take a >> look at their code ;) >> >> ohs wrote: >> > The 'Classic Way' ? >> > What / where is Scribble C# ? Do you mean the MS freehand drawing demo >> > ? >> > >> > Sorry don't think my original post was clear... the key was in the >> > 'sparkling wand'. >> > >> > I didn't want to elaborate incase I steered the response in the wrong >> > direction. >> > >> > What I need is the functionality of a tool that when clicked on an >> > point on >> > an image 'lasoos' a Region of similar coloured pixels (possibley with >> > some >> > form of edge detection). >> > >> > A basic implementation would be to create a Region from a blue circle >> > (of >> > unknown location and dimension) on a green background. >> > >> > Ultimately I would like to be able to tune the detection parameters to >> > mask >> > a photographic object, say a face in a portrait. >> > >> > Does that make more sense ? >> > >> > >> > "Bob Powell [MVP]" wrote: >> > >> >> The accumulation of the points would be done in the classic way. See >> >> various >> >> implementations of Scribble C#. >> >> >> >> The "marching ants" lasso can be drawn using a GraphicsPath taken from >> >> the >> >> points gathered and using a custom brush that changes the custom dash >> >> pattern a fwe times a second. >> >> >> >> -- >> >> Bob Powell [MVP] >> >> Visual C#, System.Drawing >> >> >> >> Ramuseco Limited .NET consulting >> >> http://www.ramuseco.com >> >> >> >> Find great Windows Forms articles in Windows Forms Tips and Tricks >> >> http://www.bobpowell.net/tipstricks.htm >> >> >> >> Answer those GDI+ questions with the GDI+ FAQ >> >> http://www.bobpowell.net/faqmain.htm >> >> >> >> All new articles provide code in C# and VB.NET. >> >> Subscribe to the RSS feeds provided and never miss a new article. >> >> >> >> >> >> >> >> "ohs" <ohs@discussions.microsoft.com> wrote in message >> >> news:75A525D0-FB3A-4C64-918D-3B45BBEB09D5@microsoft.com... >> >>> I'm looking for a way to 'Lasoo' a section of an image. >> >>> >> >>> Similar to the sparkling wand mask tools in Photoshop and the >> >>> likes... >> >>> >> >>> Hopefully to return a region object. >> >>> >> >>> Any pointers ? >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> Any ideas ? >> >>> >> >> >> >> >>
Don't see what you're looking for? Try a search.
|
June 2003
July 2003
August 2003
September 2003
October 2003
November 2003
December 2003
January 2004
February 2004
March 2004
April 2004
May 2004
June 2004
July 2004
August 2004
September 2004
October 2004
November 2004
December 2004
January 2005
February 2005
March 2005
April 2005
May 2005
June 2005
July 2005
August 2005
September 2005
October 2005
November 2005
December 2005
January 2006
February 2006
March 2006
April 2006
May 2006
June 2006
July 2006
August 2006
September 2006
October 2006
November 2006
December 2006
January 2007
February 2007
March 2007
April 2007
May 2007
June 2007
July 2007
August 2007
September 2007
October 2007
November 2007
December 2007
January 2008
February 2008
March 2008
April 2008
May 2008
June 2008
| home · blog · groups | Questions? Comments? Contact the dn |