Bug 315050 [Automation][Regression]Image size is different from golden file when preview as xls
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/layout/ExcelLayoutEngine.java
Color color = link.getColor( );
			if ( color != null )
			{
				entry.setProperty( StyleConstant.COLOR_PROP, color );
			}
			else
			{
				entry.setProperty( StyleConstant.COLOR_PROP,
						StyleConstant.HYPERLINK_COLOR );
			}
			entry.setProperty( StyleConstant.TEXT_UNDERLINE_PROP, true );
			entry.setName( StyleEntry.ENTRYNAME_HYPERLINK );
		}
	}
	public void addImageData( IImageContent image, IStyle style,
			HyperlinkDef link, BookmarkDef bookmark )
	{
		XlsContainer container = getCurrentContainer( );
		ContainerSizeInfo parentSizeInfo = container.getSizeInfo( );
		int imageWidthDpi = reportDpi;
		int imageHeightDpi = reportDpi;
		int imageHeight;
		int imageWidth;
		byte[] imageData = null;
		try
		{
			Image imageInfo = EmitterUtil
					.parseImage( image, image.getImageSource( ),
							image.getURI( ), image.getMIMEType( ), image
									.getExtension( ) );