BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Random dots makes a image of three dimension          BorlandTalk.com Forum Index -> Delphi Graphics View previous topic :: View next topic   Author Message Adam Guest Posted: Fri Feb 10, 2006 3:03 am    Post subject: Random dots makes a image of three dimension How to generate some random dots, making these dots form a three dimensional image? an example: http://www.bababian.com/photos/20060124/015F00D558B4D197E0E4FE2DE669BFE2_500.jpg Thank you -- BorlandÖÐÎÄÉçÇø http://www.BorlandBBS.cn Back to top Nicholas Sherlock Guest Posted: Fri Feb 10, 2006 5:03 am    Post subject: Re: Random dots makes a image of three dimension Adam wrote: Quote: How to generate some random dots, making these dots form a three dimensional image? an example: http://www.bababian.com/photos/20060124/015F00D558B4D197E0E4FE2DE669BFE2_500.jpg Thank you For a CAPTCHA ("completely automated public Turing test to tell computers and humans apart"), or for some other purpose? You could use a 3D package like GLScene for Delphi, have a plane with a random spotty texture on it, put a 3D model in front which also has a spotty texture. The example image given is very weak for a CAPTCHA: Segmenting the image by colour will /easily/ separate the arrow from the background, then it would be a simple matter of matching the resulting shape against known examples (Generalized Hough transform). Don't use a different colour for the spots on the 3D model. The human's perception of the warping in the texture on the arrow will allow them to recognize the shape, but make it very difficult for a machine to identify the model. Cheers, Nicholas Sherlock -- http://www.sherlocksoftware.org Back to top Arthur E.F.Heinrich Guest Posted: Fri Feb 10, 2006 9:03 pm    Post subject: Re: Random dots makes a image of three dimension This static image can be viewed only with special glasses. You can search some information related to stereoscopic images. But you can get some interesting results using motion pictures. I attached (borland.public.attachments) a Delphi project that demonstrates this. Use mouse buttons and position to control the image. []s Arthur "Adam" <support (AT) delphipages (DOT) cn> wrote in message news:43ebfcdf (AT) newsgroups (DOT) borland.com... Quote: How to generate some random dots, making these dots form a three dimensional image? an example: http://www.bababian.com/photos/20060124/015F00D558B4D197E0E4FE2DE669BFE2_500.jpg Thank you -- BorlandÖÐÎÄÉçÇø http://www.BorlandBBS.cn Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Graphics All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.