attachment-0001
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi Michael,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I had downloaded the sample PWGRaster files from: <a href="http://ftp.easysw.com/pub/cups/examples/PWGRasterSamples.zip">http://ftp.easysw.com/pub/cups/examples/PWGRasterSamples.zip</a>, with your latest working draft of the PWG raster found at: <a href="ftp://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippraster10-20110327-rev.pdf">ftp://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippraster10-20110327-rev.pdf</a>. I compared the raster files in the folders:<o:p></o:p></p><p class=MsoNormal>PWGRasterSamples\srgb-16 &<o:p></o:p></p><p class=MsoNormal>PWGRasterSamples\srgb-8, with the specs given in the draft document.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I found that neither of the directories contained files that adhered to the draft document w.r.t parsing the header. Specifically for the value of ‘NumColors’. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>--1--<o:p></o:p></p><p class=MsoNormal>According to the draft document, bytes 420-423 need to contain ‘NumColors’ value, however, I found them to be zero. Are the sample files outdated??<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>--2--<o:p></o:p></p><p class=MsoNormal>Based on the decode algorithm given in the draft document, I had tried to obtain plain RGB raster data from a pwg-raster file. I had converted the PDF document obtained here: <a href="http://orenyomtov.com/downloads/testpage.pdf">http://orenyomtov.com/downloads/testpage.pdf</a> to obtain pwg-raster file using Google cloud print. I am able to get the pwg-raster file from GCP successfully. However, on converting the pwg-raster file to RGB data, I have been successful in decoding around 1/6<sup>th</sup> or so, to raster data successfully, i.e. the top part of the page is being rendered successfully, while the rest is not rendered.<o:p></o:p></p><p class=MsoNormal>(I use GIMP to open the output raster file in RAW mode).<o:p></o:p></p><p class=MsoNormal>I have attached a screenshot of the output file that I’m able to view through GIMP (scaled down version).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is my algorithm wrong? Or are the specs incorrect?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards.<o:p></o:p></p><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>_________________________________________________</span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Roy Samuel | Celstream Technologies | </span></b><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'><a href="http://www.celstream.com/"><span style='color:blue'>www.celstream.com</span></a></span></b><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div><br />--
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