Robert A. Wlodarczyk's Blog (MSFT) https://docs.microsoft.com/archive/blogs/rwlodarc/feed.xml adventures with the Windows Imaging Component Wed, 17 Apr 2019 03:27:12 GMT en-US hourly 1 New blog home! https://docs.microsoft.com/archive/blogs/rwlodarc/new-blog-home Tue, 14 Sep 2010 20:32:12 GMT https://blogs.msdn.microsoft.com/rwlodarc/2010/09/14/new-blog-home/ Since Windows 7 shipped, I am no longer working on the team delivering the Windows Imaging Component. I'm working on some different areas within Windows. Also, I have started my own blog, SimplicityGuy, where I plan to cover projects that I work in outside of work.

This will be the last post to the blog here. All future posts will be at SimplicityGuy.

]]> A few updates and links https://docs.microsoft.com/archive/blogs/rwlodarc/a-few-updates-and-links Mon, 02 Nov 2009 11:30:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2009/11/02/a-few-updates-and-links/ Some folks have been inquiring about the sampel code that I had on my blog. Since my web host was changed and the content was lost, I've moved the code to CodePlex. I've pruned the samples, and made them availabled here. What's included:

  • Converting WPF BitmapSource <-> GDI+ Bitmap
  • Metadata Walker
  • Using WPF InPlaceBitmapMetadataWriter

Also, the code for WICExplorer and WICCop are available from MSDN. They are available here. What's included:

  • WICExplorer: Base bones metadata and image viewer built using WIC
  • WICCop: Tool used to verify that the WIC CODEC Guidelines have been properly implemented. Also includes C# COM Interop interface definitions for WIC.
]]> Moving to other blogs... https://docs.microsoft.com/archive/blogs/rwlodarc/moving-to-other-blogs Thu, 30 Apr 2009 12:09:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2009/04/30/moving-to-other-blogs/ Just last week, the DirectX blog has gone live!

From now on, any posts about WIC will be placed on the DirectX blog. Questions about WIC will continue to be answered in the WIC Forums on MSDN.

Also, in a short while I'll be setting up my own blog which won't be focused on WIC. Rather it will be focused on a variety of random things, from photography to coding to other random coolness. Once I have that blog setup, I'll post a link here.

]]> Metadata Working Group 1.01 Spec Published https://docs.microsoft.com/archive/blogs/rwlodarc/metadata-working-group-1-01-spec-published Mon, 02 Mar 2009 23:15:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2009/03/02/metadata-working-group-1-01-spec-published/ Just today the Metadata Working Group posted the version 1.01 of their guidance. There are a few changes:

  • clarification around location
  • removal of Exif UserComment from the "Description" guidance
  • clarification around "Date/Time"
  • addition of "Implementation Notes" section

 

]]> WIC in Windows 7 Pre-Beta https://docs.microsoft.com/archive/blogs/rwlodarc/wic-in-windows-7-pre-beta Tue, 28 Oct 2008 16:44:44 GMT https://blogs.msdn.microsoft.com/rwlodarc/2008/10/28/wic-in-windows-7-pre-beta/

With this morning's keynote on Windows 7, I can finally share details about what's changed in WIC in Windows 7! We've spent much time fixing many issues that both our customers and we found since we shipped Windows Vista. We also added a number of important features that were asked for by customers. Here's a list of new features and improvements you'll find:

  • Enhanced metadata support
    • GIF:
      • Metadata handlers exposed, enabling developers to gain access to the animation information. These include Logical Screen Descriptor (LSD), Image Descriptor (IMD), Graphic Control Extensions (GCE), Application Extensions (APE), Comment.
    • PNG:
      • New metadata handlers added, including iTXT, gAMA, bKGD, cHRM, iCCP, sRGB, tIME.
    • JPEG:
      • New metadata handlers added, including Comments, Chrominance, Luminance.
      • Ability to read spanned APP13 blocks.
    • Existing metadata handlers:
      • Many bug fixes!
  • Enhanced TIFF support
    • Support for tiled, planar, and JPEG compressed TIFFs
  • Cross-apartment and MTA support.
  • IWICPixelFormatInfo2
    • Adds information about transparency and numeric representation of the pixel format.
  • IWICProgressiveLevelControl
    • This allows developers to gain access to an image's progressive levels.
    • Supports on GIF, PNG, and JPEG.
  • Additional Pixel Formats, including ones for high color

If you have any questions about WIC on Windows 7, please feel free to either email us or visit the forums.

]]> Metadata Working Group https://docs.microsoft.com/archive/blogs/rwlodarc/metadata-working-group Sun, 12 Oct 2008 21:57:47 GMT https://blogs.msdn.microsoft.com/rwlodarc/2008/10/12/metadata-working-group/ At Photokina this year, the Metadata Working Group standard was announced. This is an industry wide effort to improve how metadata is written and read for a number of key fields used in consumer workflows. The formation of this group included members from Adobe, Apple, Canon, Microsoft, Nokia, and Sony. Most recently, both the IPTC and PLUS organizations endorsed the efforts from the Metadata Working Group.

The specification produced by the Metadata Working Group is available from the website. It outlines the goals as well as details how each of the fields should be used in order to ensure maximum compatibility among applications that adhere to this specification.

For more details on the Metadata Working Group, check out the website.

]]> WIC Tools now available! https://docs.microsoft.com/archive/blogs/rwlodarc/wic-tools-now-available Mon, 26 Nov 2007 10:20:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2007/11/26/wic-tools-now-available/ The following WIC Tools are now available from the Microsoft Download Center... with source code!

  • WICGrinder (updated!)
  • WICExplorer
  • Sample CODEC, metadata handler, pixel formats

Click here to download the code! Also here.

]]> WIC Forum https://docs.microsoft.com/archive/blogs/rwlodarc/wic-forum Mon, 22 Oct 2007 23:44:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2007/10/22/wic-forum/ WIC Forum on the MSDN Forums page. So, if you have any questions about WIC, please post them there. Enjoy!]]> Using WPF's InPlaceBitmapMetadataWriter https://docs.microsoft.com/archive/blogs/rwlodarc/using-wpfs-inplacebitmapmetadatawriter Wed, 18 Jul 2007 21:39:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2007/07/18/using-wpfs-inplacebitmapmetadatawriter/ Many folks have tried to use the WPF Imaging InPlaceBitmapMetadataWriter class without much success. Unfortunately the SDK sample provided only shows how to use this with PNG files... and this is less than ideal since folks are mainly interested in metadata on their JPEGs and TIFFs. The InPlaceBitmapMetadataWriter is a way to invoke WIC's IWICFastMetadataEncoder, or as we call it "the FME". Basically this is a way to add metadata to a file very quickly without re-encoding the file. However, this only works if the file has metadata padding in it. Padding is extra space that the metadata handler sets aside in the file for writing out metadata in the future. Say I want to change an author form "Robert Wlodarczyk" to "Robert A. Wlodarczyk". Since the length of the new string is longer, without padding the metadata handler can't squish this data in to the file without moving what's after the metadata. As shipped in Windows Vista and WPF 3.0, padding is only supported in IFD, EXIF, and XMP metadata formats. Generally cameras do not produce files with padding in it, so this must be added initially. So, you need to re-encode the file initially. Luckily the WIC JPEG CODEC is able to do this in a manner which does not cause the image to lose any quality. Since IFD, EXIF, and XMP live only in TIFFs, JPEGs, and HD Photo (or at least as was shipped), should only use the InPlaceBitmapMetadataWriter with TIFFs, JPEGs, HD Photo. tExT is also supported by the InPlaceBitmapMetadataWriter... and this is for PNGs. Within the Windows Vista, the property dialog and Photo Gallery both use the FME to write out metadata quickly. Upon the first metadata edit, padding is added so that each subsequent metadata update is faster than the first. Note, the sample only covers JPEG, but it can easily be adapted to TIFF or HD Photo.

If you've struggled with the InPlaceBitmapMetadataWriter and want to get the sample... grab it from here.

]]> Microsoft Pro Photo Summit 2007 https://docs.microsoft.com/archive/blogs/rwlodarc/microsoft-pro-photo-summit-2007 Tue, 17 Jul 2007 00:04:00 GMT https://blogs.msdn.microsoft.com/rwlodarc/2007/07/17/microsoft-pro-photo-summit-2007/ Last week was the Microsoft Pro Photo Summit. Below are links to some coverage from the event:

PopPhoto (1), (2)

Blurberati

Photo Business Forum

Dispatches (1), (2), (3), (4)

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