Legacy ImageMagick Discussions Archive

Hi,
I wish to decode a jbig2 image in a pdf.
I see that ImageMagick understands CompressionMethod JBIG2, but not the format.

is there an alternate format I should use for this scenario?

Kind Regards
Martin

Can't imagine why I didn't see that before! doh
Thanks
Martin

Hi, I'm trying to achieve the equivalent of convert.exe input.jpg -level 25%,75% output.jpg I'm using MagickImage ContastStretch method. Basically it's not working. using (MagickImage image = new MagickImage("input.jpg")) { image.ContrastStretch(new Percentage(25), new Percentage(75)); // Save image ...

Hi,
Not yet, but I currently think the problem lies else where.
Happy to have it left with me, unless I come back.
I'll confirm if I resolve the problem - not currently full time on this, so unsure of timescales.
Martin

I think I may have had a memory leak, leading to unexpected behaviour....

I'm using Assembly Magick.NET-Q16-AnyCPU, Version=7.0.0.0

Slightly more information, I'm trying to return a decoded image to a calling function. I receive the encoded data, decode it by constructing the MagickImage, passing in encodeddata and readSettings. use image.Write to save the decoded data. The original data is MagickFormat.G4, CompressionMethod.Fax ...

Hi, I've got some code that uses MagickImage class. The code used to work (I thought) so obviously something's changed, and I'm trying to troubleshoot the problem... My code looks like this: MemoryStream ms = null; MagickImage image = new MagickImage(data, readSettings); image.Format = MagickFormat ...

Hi snibgo, Thanks for that. I'll try to make more sense of the pdf.

Martin

Hi, I have a pdf with an image having the filters /FlateDecode /RunLengthDecode (in that order) I've seen table PS/PDF Compression Meanings in http://www.imagemagick.org/Usage/formats/ which explains they are equivalent to "-compress zip" and "+compress" "-compress rle" any thing else respectively ...