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PixTools - Invalid image color format - during annotation (MergeAnnotations)

Posted on 2012-04-12
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Last Modified: 2012-04-18
I could use some help with an error I am getting when trying to annotate a TIFF image with some text.
 
00:00:06.0127 (Error): An error occured while attempting to export the file in t
he ExportFiles method of the ExportGroup class.  Message is : Invalid image colo
r format. System.InvalidOperationException: Invalid image color format.
   at PixTools.PixImage.MergeAnnotations(AnnotationDocument annotations, MergeAt
tributes attrs, PixImageTransformer transformer)
   at MetaSource.Imaging.Services.Impl.LeadToolsAnnotate.Annotate(MemoryStream I
nputImage, String AnnotationText, Font AnnotationFont)
 
 
The error is being raised on this line of code:
 
PixImage newpi = pImage.MergeAnnotations(annotationDoc, MergeAttributes.None, null);
 
 
Here is the entire block of code:
 
 
        public MemoryStream Annotate(MemoryStream InputImage, string AnnotationText, Font AnnotationFont)
        {
            InputImage.Position = 0;
           
            Bitmap bImagem = new Bitmap(InputImage);
            PixImage pImage = new PixImage();
            pImage.Import(bImagem);
            PixTools.Annotation.AnnotationDocument annotationDoc = new PixTools.Annotation.AnnotationDocument();
            PixTools.Annotation.TextAnnotation textItem = new PixTools.Annotation.TextAnnotation();
            textItem.Text = new PixTools.Annotation.ItemText(AnnotationText);
            annotationDoc.Items.Add(textItem);
 
//raises an exception when this line attempts to run
            PixImage newpi = pImage.MergeAnnotations(annotationDoc, MergeAttributes.None, null);
           
            Bitmap anotherBitmap = newpi.GetBitmap();
 
 
            MemoryStream ms = new MemoryStream();
            // Save to memory using the Jpeg format
            anotherBitmap.Save(ms, ImageFormat.Tiff);
 
 
            ms.Position = 0;
 
 
            return ms;
 
            //annotationDoc.Items.Clear();
        }
 
 
The intent of the code is to annotate the image  (which is passed in as a MemoryStream object) with the text that is passed in.
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Question by:knowlton
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3 Comments
 
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Expert Comment

by:Bob Learned
ID: 37842758
I would think that Reflector, or some other decompiler (JustDecompile, ILSpy, ...) would help explain where the exception is coming from, and what the expectation is.
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Accepted Solution

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knowlton earned 0 total points
ID: 37842770
Here is the corrected code (notice the bolded code):

public MemoryStream Annotate(MemoryStream InputImage, string AnnotationText, Font AnnotationFont)
        {
            InputImage.Position = 0;
            
            Bitmap bImagem = new Bitmap(InputImage);
            PixImage pImage = new PixImage();
            pImage.Import(bImagem);
            PixTools.Annotation.AnnotationDocument annotationDoc = new PixTools.Annotation.AnnotationDocument();
            PixTools.Annotation.TextAnnotation textItem = new PixTools.Annotation.TextAnnotation();
            textItem.Text = new PixTools.Annotation.ItemText(AnnotationText);
            annotationDoc.Items.Add(textItem);
            Console.WriteLine("LEAD TOOLS ANNOTATE - no print top");
           [b] PixImage newpi = pImage.MergeAnnotations(annotationDoc, MergeAttributes.MergeColorFormatPreserve, null);[/b]
            
            Bitmap anotherBitmap = newpi.GetBitmap();

            MemoryStream ms = new MemoryStream();
            
            anotherBitmap.Save(ms, ImageFormat.Tiff);

            ms.Position = 0;

            return ms;
      
            //annotationDoc.Items.Clear();
        }

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Author Closing Comment

by:knowlton
ID: 37859686
Great suggestions!

In the end, it was just trial and error.  Since there's no way for me to share the PixTools libraries, there's no way for anyone on EE to see the code completion or know what options I had available.

The corrected code has been published.  Someone else may be using PixTools and run into this problem.
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