BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Antialiased TImageList Goto page 1, 2, 3  Next          BorlandTalk.com Forum Index -> Delphi Graphics View previous topic :: View next topic   Author Message Laggy Guest Posted: Mon Apr 30, 2007 8:59 pm    Post subject: Antialiased TImageList Hi, Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. I currently use the ConvertTo32BitImagelist procedure to allow the showing of higher colour images but want to find a way of making historical images in TImageLists that have been around a few years appear not so harsh looking on XP and Vista. I dont mind if there has to be some pre-processing in the Form Create to take them out one by one, antialias them (if the right term to use) and put them back in the TImageLists to use in Treeviews. etc. Does anyone have any code or any examples on how to do this? I am a Delphi graphics newbie. Thanks. Back to top Jens Gruschel Guest Posted: Mon Apr 30, 2007 9:25 pm    Post subject: Re: Antialiased TImageList Quote: Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. Take a look at http://www.thany.org/article/32/PngComponents -- Jens Gruschel http://www.pegtop.net Back to top Laggy Guest Posted: Tue May 01, 2007 1:13 pm    Post subject: Re: Antialiased TImageList Thanks Jens for the link. So if i changed the declaration of the TImageLists in the pas and dfm manually, would it retain the images using this new component and would they automatically become antialiased or alphablended (which ever is the correct term) on my forms under xp and vista? Cheers. "Jens Gruschel" <nospam (AT) thisurldoesnotexist (DOT) com> wrote in message news:46361892$1 (AT) newsgroups (DOT) borland.com... Quote: Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. Take a look at http://www.thany.org/article/32/PngComponents -- Jens Gruschel http://www.pegtop.net Back to top Jens Gruschel Guest Posted: Tue May 01, 2007 1:36 pm    Post subject: Re: Antialiased TImageList Quote: So if i changed the declaration of the TImageLists in the pas and dfm manually, would it retain the images using this new component and would they automatically become antialiased or alphablended (which ever is the correct term) on my forms under xp and vista? No, your images lack this information. You have to create a new image list and add images with have an alpha channel and which use this alpha channel for antialiasing. To provide such images the png format is used because png is the most common format which supports RGBA officially. You can create such images with image editing software like Photoshop and save them as png files or search the web for png images. Here is one example I like: http://www.famfamfam.com/lab/icons/silk/ (however it's limited to 16x16) -- Jens Gruschel http://www.pegtop.net Back to top Laggy Guest Posted: Tue May 01, 2007 1:37 pm    Post subject: Re: Antialiased TImageList Well I have just tried and the answer is a resounding no lol I dont want to make the 60 odd glyphs into png images and add them into the pngimagelist. Is there a way i can pre-parse them in the imagelist at startup using any other graphic routines? I hope someone has some tips :) Cheers. "Laggy" <nospam (AT) nospam (DOT) com> wrote in message news:4636f6cc$1 (AT) newsgroups (DOT) borland.com... Quote: Thanks Jens for the link. So if i changed the declaration of the TImageLists in the pas and dfm manually, would it retain the images using this new component and would they automatically become antialiased or alphablended (which ever is the correct term) on my forms under xp and vista? Cheers. "Jens Gruschel" <nospam (AT) thisurldoesnotexist (DOT) com> wrote in message news:46361892$1 (AT) newsgroups (DOT) borland.com... Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. Take a look at http://www.thany.org/article/32/PngComponents -- Jens Gruschel http://www.pegtop.net Back to top Laggy Guest Posted: Tue May 01, 2007 1:38 pm    Post subject: Re: Antialiased TImageList Thanks jens for the very fast reply! "Jens Gruschel" <nospam (AT) nospam (DOT) nospam> wrote in message news:4636fc19 (AT) newsgroups (DOT) borland.com... Quote: So if i changed the declaration of the TImageLists in the pas and dfm manually, would it retain the images using this new component and would they automatically become antialiased or alphablended (which ever is the correct term) on my forms under xp and vista? No, your images lack this information. You have to create a new image list and add images with have an alpha channel and which use this alpha channel for antialiasing. To provide such images the png format is used because png is the most common format which supports RGBA officially. You can create such images with image editing software like Photoshop and save them as png files or search the web for png images. Here is one example I like: http://www.famfamfam.com/lab/icons/silk/ (however it's limited to 16x16) -- Jens Gruschel http://www.pegtop.net Back to top David Ninnes Guest Posted: Tue May 01, 2007 2:37 pm    Post subject: Re: Antialiased TImageList Laggy wrote: Quote: Well I have just tried and the answer is a resounding no lol I dont want to make the 60 odd glyphs into png images and add them into the pngimagelist. Is there a way i can pre-parse them in the imagelist at startup using any other graphic routines? You can, by writing a little routine to convert the transparent color from the imagelist bitmaps to convert them to PNG's with an alpha channel. But they won't look any different. To get the effect I think you're after you need icons with an alpha channel, you can buy some or make some as Jens suggested. If you have the original images for the icons in a large size you can shrink them to icon size and this will give you an alpha blended image, something like The Gimp or Photoshop will let you do this. hth, Dave Back to top Laggy Guest Posted: Tue May 01, 2007 6:12 pm    Post subject: Re: Antialiased TImageList Hi helmut - yes something like that and more specifically the call Choixfiltre(1); which is for antialiasing within the code and would be perfect i think for my needs. I changed the Soften button in the demo from Choixfiltre(2); to Choixfiltre(1); and opened up a bitmap and it smoothed it great. However there is the issue of trying to modify all the code for my needs only - passing in a standard 16x16 bitmap and returning an antialiased 16x16 bitmap. I have tried to pull the code out to no avail as it is tied in all over the place and rather confusing in places too. Does anyone know of a similar routine or has anyone created a function to do this from the Estampe codeline? Cheers. "helmut" <helmut1000 (AT) gmail (DOT) com> wrote in message news:46373112 (AT) newsgroups (DOT) borland.com... Quote: "Laggy" <nospam (AT) nospam (DOT) com> wrote in message news:46361278$1 (AT) newsgroups (DOT) borland.com... Hi, Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. I currently use the ConvertTo32BitImagelist procedure to allow the showing of higher colour images but want to find a way of making historical images in TImageLists that have been around a few years appear not so harsh looking on XP and Vista. I dont mind if there has to be some pre-processing in the Form Create to take them out one by one, antialias them (if the right term to use) and put them back in the TImageLists to use in Treeviews. etc. Does anyone have any code or any examples on how to do this? I am a Delphi graphics newbie. Thanks. you mean a blur routine. http://www.efg2.com/Lab/Library/Delphi/Graphics/Queinec/EstampeDemo/EstampeDemo.htm Back to top helmut Guest Posted: Wed May 02, 2007 4:22 am    Post subject: Re: Antialiased TImageList "Laggy" <nospam (AT) nospam (DOT) com> wrote in message news:46361278$1 (AT) newsgroups (DOT) borland.com... Quote: Hi, Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. I currently use the ConvertTo32BitImagelist procedure to allow the showing of higher colour images but want to find a way of making historical images in TImageLists that have been around a few years appear not so harsh looking on XP and Vista. I dont mind if there has to be some pre-processing in the Form Create to take them out one by one, antialias them (if the right term to use) and put them back in the TImageLists to use in Treeviews. etc. Does anyone have any code or any examples on how to do this? I am a Delphi graphics newbie. Thanks. you mean a blur routine. http://www.efg2.com/Lab/Library/Delphi/Graphics/Queinec/EstampeDemo/EstampeDemo.htm Back to top Laggy Guest Posted: Wed May 02, 2007 1:43 pm    Post subject: Re: Antialiased TImageList Well not being a graphics developer I have given it a go and come up with the little demo prog in the borland.public.attachments folder called AntiAliasImageList.zip The code is cobbled together from code i found all over the net yesterday. It is definatelty moving along the right lines which i am amazed at, however there are two issues i really need help with... Firstly, the images seem too sampled if you see what i mean when you run the exe. Ideally I would like them antialiased to about half the level they are now. Secondly, when the images are antialiased, they have a white background which i dont want - i want to ideally keep the same background. If any of the delphi gurus on here could help me out i would really appreciate it. Cheers. "Laggy" <nospam (AT) nospam (DOT) com> wrote in message news:46373ca2$1 (AT) newsgroups (DOT) borland.com... Quote: Hi helmut - yes something like that and more specifically the call Choixfiltre(1); which is for antialiasing within the code and would be perfect i think for my needs. I changed the Soften button in the demo from Choixfiltre(2); to Choixfiltre(1); and opened up a bitmap and it smoothed it great. However there is the issue of trying to modify all the code for my needs only - passing in a standard 16x16 bitmap and returning an antialiased 16x16 bitmap. I have tried to pull the code out to no avail as it is tied in all over the place and rather confusing in places too. Does anyone know of a similar routine or has anyone created a function to do this from the Estampe codeline? Cheers. "helmut" <helmut1000 (AT) gmail (DOT) com> wrote in message news:46373112 (AT) newsgroups (DOT) borland.com... "Laggy" <nospam (AT) nospam (DOT) com> wrote in message news:46361278$1 (AT) newsgroups (DOT) borland.com... Hi, Was wondering if anyone knew how to make images within a TImageList antialised (i.e. looking smoother and more blended?) say at startup. I currently use the ConvertTo32BitImagelist procedure to allow the showing of higher colour images but want to find a way of making historical images in TImageLists that have been around a few years appear not so harsh looking on XP and Vista. I dont mind if there has to be some pre-processing in the Form Create to take them out one by one, antialias them (if the right term to use) and put them back in the TImageLists to use in Treeviews. etc. Does anyone have any code or any examples on how to do this? I am a Delphi graphics newbie. Thanks. you mean a blur routine. http://www.efg2.com/Lab/Library/Delphi/Graphics/Queinec/EstampeDemo/EstampeDemo.htm Back to top David Ninnes Guest Posted: Thu May 03, 2007 3:59 am    Post subject: Re: Antialiased TImageList Laggy wrote: Quote: Firstly, the images seem too sampled if you see what i mean when you run the exe. Ideally I would like them antialiased to about half the level they are now. You could try putting the original image (or a ratio of the pixels in the original image) back on top of the blurred image, that might give you more definition. Or maybe add the two images together with a ratio between the blurred image and the original image. hth, Dave Back to top Laggy Guest Posted: Thu May 03, 2007 1:17 pm    Post subject: Re: Antialiased TImageList Thanks for the suggestions David :) Though as i mentioned in my very first post, i am not a graphics developer at all so would not have a clue as to how I would go about doing that. Can anybody shed some light or does anyone have an improved antialias function than the one in my demo in b.p.a? Cheers. "David Ninnes" <david_ninnes (AT) hotmail (DOT) com> wrote in message news:46391818 (AT) newsgroups (DOT) borland.com... Quote: Laggy wrote: Firstly, the images seem too sampled if you see what i mean when you run the exe. Ideally I would like them antialiased to about half the level they are now. You could try putting the original image (or a ratio of the pixels in the original image) back on top of the blurred image, that might give you more definition. Or maybe add the two images together with a ratio between the blurred image and the original image. hth, Dave Back to top Jens Gruschel Guest Posted: Sun May 06, 2007 5:56 pm    Post subject: Re: Antialiased TImageList Quote: Can anybody shed some light or does anyone have an improved antialias function than the one in my demo in b.p.a? You are trying to generate information that's not available. To allow subpixel accuracy antialiasing algorithmns require the information what's between the pixel grid. This information is either provided by a continuous mathematical description of the object (say a line or a circle) or by a matrix with higher resolution. Latter algorithmns are known as resampling. What you actually do isn't antialiasing at all, it's blurring, and like all filter operations blurring cannot generate more information than the one in the source bitmap. Like antialiasing blurring creates semi transparent pixels at the edges, but blurring also eleminates the high frequencies within your image. So to provide a high quality antialiased icon you need a source icon with higher resolution. -- Jens Gruschel http://www.pegtop.net Back to top Herre de Jonge Guest Posted: Mon May 07, 2007 7:09 am    Post subject: Re: Antialiased TImageList David Ninnes wrote: Quote: Laggy wrote: Well I have just tried and the answer is a resounding no lol I dont want to make the 60 odd glyphs into png images and add them into the pngimagelist. Is there a way i can pre-parse them in the imagelist at startup using any other graphic routines? You can, by writing a little routine to convert the transparent color from the imagelist bitmaps to convert them to PNG's with an alpha channel. But they won't look any different. Isn't it easier to just save the images to a file? They will end up in one .bmp with a lovely magenta as transparent colour. Use your favourite editing program to change this to a png with transparency and load them back into the new component? (But you're right... this won't change the look of these old, original icons). No need to write any routines. Take care, Herre Back to top Jens Gruschel Guest Posted: Tue May 08, 2007 12:03 am    Post subject: Re: Antialiased TImageList Quote: So to provide a high quality antialiased icon you need a source icon with higher resolution. Wait a minute. Although I still believe that for really high quality antialiased icons you need high resolution (non-antialiased) images, maybe there is one thing you can do with small images: convert your icons to 32 bit with alpha channel using the transparent color, than blur the alpha channel only and repeat the RGB values of the edge pixels in the semi-transparent areas (you probably need to find a tricky algorithm for this step). Haven't tried it, but might be a suitable way. -- Jens Gruschel http://www.pegtop.net 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 Goto page 1, 2, 3  Next Page 1 of 3   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.