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POWhy does ImageResizer not handle extraction of tiff pages if the tiff has pages of differing image types?
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copied!<p>I'm using imageresizer.net in a console app to pull pages out of tiff images, but when the tiff contains pages of differing image types, what imageresizer extracts does not always represent the original page. </p> <p>I am using the managed API, with this code: <code>ImageBuilder.Current.Build(sourceImagePath, destinationImagePath, new ResizeSettings("page=[whatever]"));</code></p> <p>The TIFF image contains...</p> <ul> <li>Page 1, image type "Bilevel (white is zero)", compression "Group 3", size "485kb".</li> <li>Page 2, image type "YCbCr (2,1 subsampling)", compression "JPEG (old style)", size "11MB".</li> <li>Page 3, image type "YCbCr (2,1 subsampling)", compression "JPEG (old style)", size "11MB".</li> <li>Page 4, image type "Grayscale (256 grays, black is zero)", compression "JPEG (old style)", size "4MB".</li> </ul> <p>The behaviour I am getting is...</p> <ul> <li>Extracting page 1 works correctly.</li> <li>Extracting page 2 ends up extracting an image of page 1.</li> <li>Extracting page 3 ends up extracting an image of page 1, but squashed into a band about 1cm wide on the left hand side of the image, with the remaining image black.</li> <li>Extracting page 4 works correctly.</li> </ul> <p>I have also used libtiff.net to extract the same images using <a href="http://bitmiracle.com/libtiff/help/convert-color-tiff-to-a-32-bit-system.drawing.bitmap.aspx" rel="nofollow">this method</a>, which does not exhibit the same fault.</p> <p>Edit - using this code to test with the Wic decoder:</p> <pre><code>var settings = new ResizeSettings("decoder=wic&page=" + pageNumber); Config.Current.Plugins.GetOrInstall<WicDecoderPlugin>(); ImageBuilder.Current.Build(sourceImagePath, destImagePath, settings); </code></pre> <p>This works for page 1 & 4 (no change there), but I get an 'Object reference not set to an instance of an object.' error for page 2 & 3 when using the Wic decoder.</p> <p>Edit 2 - converted the bit that's failing to an MVC project to get /resizer.debug:</p> <pre><code>Image resizer diagnostic sheet 29/06/2012 4:08:14 a.m. 4 Issues detected: (Warning): To potentially see additional errors here, perform an image resize request. (Warning): You are running a hotfix version of the ImageResizer. You should upgrade to a released version with an equal or higher version number as soon as possible. Hotfix and release DLLs with the same version number are not the same - the release DLL should be used instead. Assemblies marked as hotfix versions: ImageResizer, ImageResizer.Mvc (Warning): NoCache is only for development usage, and cannot scale to production use. Add DiskCache or CloudFront for production use (Warning): Potentially incompatible ImageResizer assemblies were detected. Please make sure all ImageResizer assemblies are from the same version. Compatibility issues are possible if you mix plugins from different releases. 3.2.3 assemblies: ImageResizer, ImageResizer.Mvc 3.2.2 assemblies: ImageResizer.Plugins.Logging, ImageResizer.Plugins.Wic You are using paid bundles: Design Bundle Registered plugins: ImageResizer.Plugins.Basic.DefaultEncoder ImageResizer.Plugins.Basic.NoCache ImageResizer.Plugins.Basic.ClientCache ImageResizer.Plugins.Basic.Diagnostic ImageResizer.Plugins.Basic.SizeLimiting ImageResizer.Plugins.MvcRoutingShim.MvcRoutingShimPlugin ImageResizer.Plugins.WicDecoder.WicDecoderPlugin ImageResizer.Plugins.Logging.LoggingPlugin Configuration: <resizer> <plugins> <add name="MvcRoutingShim" /> <add name="WicDecoder" /> <add name="Logging" /> </plugins> </resizer> Accepted querystring keys: quality, format, thumbnail, maxwidth, maxheight, width, height, w, h, scale, stretch, crop, cropxunits, cropyunits, page, bgcolor, rotate, flip, sourceFlip, sFlip, sRotate, borderWidth, borderColor, paddingWidth, paddingColor, ignoreicc, frame, useresizingpipeline, cache, process, margin, anchor, dpi, mode, zoom, Accepted file extensions: bmp, gif, exif, png, tif, tiff, tff, jpg, jpeg, jpe, jif, jfif, jfi, Environment information: Running Microsoft Windows NT 6.1.7601 Service Pack 1 and CLR 4.0.30319.269 Trust level: Unrestricted OS bitness: x86 !! Warning, running as 32-bit on a 64-bit OS(AMD64). This will limit ram usage !! Executing assembly: C:\Program Files (x86)\Common Files\Microsoft Shared\DevServer\10.0\WebDev.WebServer40.exe IntegratedPipeline: False Loaded assemblies: mscorlib Assembly: 4.0.0.0 File: 4.0.30319.269 Info: 4.0.30319.269 System.Web Assembly: 4.0.0.0 File: 4.0.30319.272 Info: 4.0.30319.272 System Assembly: 4.0.0.0 File: 4.0.30319.269 Info: 4.0.30319.269 System.Core Assembly: 4.0.0.0 File: 4.0.30319.233 Info: 4.0.30319.233 System.Configuration Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Xml Assembly: 4.0.0.0 File: 4.0.30319.233 Info: 4.0.30319.233 System.Runtime.Caching Assembly: 4.0.0.0 File: 4.0.30319.237 Info: 4.0.30319.237 Microsoft.Build.Utilities.v4.0 Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.RegularExpressions Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 Microsoft.Build.Framework Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Data Assembly: 4.0.0.0 File: 4.0.30319.237 Info: 4.0.30319.237 Microsoft.JScript Assembly: 10.0.0.0 File: 10.0.30319.1 Info: 10.0.30319.1 CppCodeProvider Assembly: 10.0.0.0 File: 10.0.30319.1 Info: 10.0.30319.1 System.Web.WebPages.Deployment Assembly: 1.0.0.0 File: 1.0.20105.407 System.Web.WebPages Assembly: 1.0.0.0 File: 1.0.20105.407 System.Web.Mvc Assembly: 3.0.0.0 File: 3.0.20105.0 Microsoft.Web.Infrastructure Assembly: 1.0.0.0 File: 1.0.20105.407 System.Web.WebPages.Razor Assembly: 1.0.0.0 File: 1.0.20105.407 System.Web.Razor Assembly: 1.0.0.0 File: 1.0.20105.407 App_global.asax.ijrgfwnu Assembly: 0.0.0.0 PNCC.LimDocumentBuilder.ImageResizerTest Assembly: 1.0.0.0 File: 1.0.0.0 WebDev.WebHost40 Assembly: 10.0.0.0 File: 10.0.40219.1 Info: 10.0.40219.1 System.Web.Mobile Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.ServiceModel.Activation Assembly: 4.0.0.0 File: 4.0.30319.233 Info: 4.0.30319.233 System.ServiceModel Assembly: 4.0.0.0 File: 4.0.30319.233 Info: 4.0.30319.233 System.Runtime.DurableInstancing Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 SMDiagnostics Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Xaml.Hosting Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.Extensions Assembly: 4.0.0.0 File: 4.0.30319.272 Info: 4.0.30319.272 Microsoft.CSharp Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.Services Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Drawing Assembly: 4.0.0.0 File: 4.0.30319.282 Info: 4.0.30319.282 System.EnterpriseServices Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.IdentityModel Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Runtime.Serialization Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.ServiceModel.Web Assembly: 4.0.0.0 File: 4.0.30319.233 Info: 4.0.30319.233 System.Activities Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.ServiceModel.Activities Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.WorkflowServices Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Data.DataSetExtensions Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Xml.Linq Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.ComponentModel.DataAnnotations Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.DynamicData Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.ApplicationServices Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 EntityFramework Assembly: 4.1.0.0 File: 4.1.10331.0 Info: 4.1.10331.0 ImageResizer Assembly: 3.2.3.766 File: 3.2.3.766 Info: 3-2-beta-3-temp-hotfix-jun-27-2012-9am Commit: a0f4f1e ImageResizer.Mvc Assembly: 3.2.3.766 File: 3.2.3.766 Info: 3-2-beta-3-temp-hotfix-jun-27-2012-9am Commit: a0f4f1e ImageResizer.Plugins.Logging Assembly: 3.2.2.0 File: 3.2.2.0 Info: 3-2-beta-2 Commit: 3704dd6 ImageResizer.Plugins.Wic Assembly: 3.2.2.0 File: 3.2.2.0 Info: 3-2-beta-2 Commit: 3704dd6 NLog Assembly: 2.0.0.0 System.Web.Abstractions Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 System.Web.Helpers Assembly: 1.0.0.0 File: 1.0.20105.407 System.Web.Routing Assembly: 4.0.0.0 File: 4.0.30319.1 Info: 4.0.30319.1 </code></pre>

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