Legacy ImageMagick Discussions Archive

I don't have a URL with the image, but I just e-mailed it to:
generalHQ@studio.imagemagick.org

I have a TIFF image, but when I use ImageMagick to convert it to a PCL file, the resultant output file is all black. convert image-1.tiff image-1.pcl The same thing happens in my code, when I load in the TIFF image and execute the command: tiffimg.magick( "PCL" ) ; No errors or warnings are given ...

I see that there has been an update to ImageMagick this weekend, to Version 6.6.5-7. Using this version, it seems like the memory corruption issue has been fixed, but it still does not work correctly. Manually using the convert command line tool to convert the two images I sent in no longer causes ...

convert image-1.tiff -compress RLE image-1.pcl
and
convert image-1.tiff -compress NONE image-1.pcl

both seem to execute fine without any internal traps.

So it seems to be in the PCL compression routine, I gather.

Robert

Yes, I can reproduce the problem from the command line. In the package I e-mailed in, I included two TIFF images - image-1.tiff and image-8.tiff. If I type: convert image-1.tiff image-1.pcl I get a trap regarding heap corruption, similar to the problem I am seeing in my program. Again, this worked ...

Sent. Thank you.

Robert Lee

Is there somewhere I can e-mail a zip file that contains my test case program along with the tiff file I am using? Sorry, I don't have a URL to post it at.

Robert

Is anyone willing to look into this issue?

Loading a TIFF image and converting it to PCL seems to be broken and causes traps inside of ImageMagick in the latest 6.6.5 build, whereas it worked in earlier 6.4.3 releases.

Robert Lee.

I have put together a small test program that I believe points out a bug in the latest version of ImageMagick, and would like to submit it for debugging and fixing. How do I do that? This progam uses ImageMagick to read in a TIFF image file, does some simple processing on it (cropping and sizing ...

THANK YOU!!! That is exactly what I needed to know.

I actually used 'min-is-white' (not 'min-is-black') as the third parameter to get the results I was looking for, but it works great.

I am now making TIFF images from the PCL exactly as I need them to be.

Thanks again. You guys are great!

What paramters am I supposed to give to defineValue()? I tried: image.defineValue( "quantum:polarity", "min-is-white" ) ; image.defineValue( "262", "0" ) ; image.defineValue( "TIFF", "quantum:polarity", "min-is-white") ; image.DefineValue( image.magick(), "quantum:polarity", "min-is-white"); and ...

Thank you. The density() was just the tip I needed. And let me also say that you all run a great forum here. Very helpful and professional with fast and accurate answers. Thank you so much for that. One last issue, and then I think I've got it all my code working right. The TIFF image I'm creating ...

Thank you. That seems to have gotten me most of the way there, but I still have one (well, two) more question(s). I have downloaded and installed GhostPCL and seem to have it working to get ImageMagick to now read my PCL data to do the conversion needed. The problem I am facing now is that the ...

We have been using ImageMagick successfully for some time now to convert TIFF images to PCL, using the Magick++ interface. Now we are trying to do the opposite - take PCL data and convert them to TIFF images. However, whenever I try to read the PCL data in, I am getting an error. First I create the ...

Since you are saying it works, at this point, I am going under the assumption that the problem we are having has to do with the LIBTIFF library, and not ImageMagick. We are using Red Hat Enterprise Edition, and as far as I can determine, the latest LIBTIFF available for that release is 3.6.1. So now ...