Legacy ImageMagick Discussions Archive

I too tried to replicate the issue by command line (which I very rarely use) and could not replicate what I'm seeing using Perl Magic.

Will post an image & Perl code shortly to illustrate the issue.

Thanks

Mike

I'm sure this is NOT a bug, but simply the way the conversion is currently implemented :) (please feel free to relocate this post if you think appropriate). Version: ImageMagick 7.0.5-0 Q16 x86_64 + Perl Magic + Linux When converting from XYZ to xyY any pixels with X+Y+Z=0 values are converted to Na...

........ adding a channel selector would also be really useful

Mike

I'm running into similar issues (early days yet ;) ). Am I correct in assuming (in Perl Magic) that once an HRD image is read in, it is not sufficient just to change the magick file number to a PNG to force the data to integer values, but the file would have to be written and re-read for the convers...

Given the advances in TV technology, there are now some glorious (and affordable) TV's wich offer both a high dynamic range and a wide color gamut. Those of us who dabble with HDRi images might be able to display these without having to compress the gamut and DR through tone-mapping. Has anybody wor...

Just an observation: When applying ->Set(colorspace=>"XYZ") to an RGB file (or ->Colorspace(colorspace=>"XYZ") or using "xyY") and THEN applying ->Set(alpha=>"On") an extra 4th channel (in addition to the XYZ & Alpha channels) appears to be generated and i...

Hi, Thanks for this upgrade! It is now working perfectly for me. For those following this post the ->Set(colorspace=>"-------") now no longer converts the file to the new colorspace, but only sets the colorspace flag. The new command ->Colorspace(colorspace=>"-----") is the one t...

Hi Guys, I've now installed v7.0.5-0. On the plus side: The Statistics() function in Perl Magik is now functioning correctly - Many thanks. fx:maxima minima and mean now give the correct values - Many thanks. However, when running the same PERL script as my initial posting on v7.0.5-0: The fx:mean.r...

Thanks. Missed the beta version, so will download/install tonight and respond tomorrow.

Hmmmm..... Having updated to 7.4-8 I still appear to be having some issues (with some problems fixed). Before I respond, could you let me know if it is best to feedback on this thread, or to create a new thread?

Thanks for the feedback Fred . I'll update my IM and feedback wit any issues.

Mike

Thanks guys (and gals). Great service & much appreciated

I'm running on IM 7.0.2-4 Q16 x86_64, using PerlMagick and getting some strange numbers from the fx:mean, fx:maxima, functions. These (I suspect) may be issues with the main IM program (rather than Perl Magick). I'm also getting some strange numbers from the Perl Magick Statistics() method. To illus...

Thanks Magic, Looking forward to it. I've been testing my home-brew function this afternoon, and it appears to work reliably. In terms of naming the function: Option 1 Starting with a blank piece of paper you would use $im->Colorspace(colorspace=>'XYZ') to mimic -colorspace XYZ and $im->Set(colorspa...

Just given that a go, with no luck . Have responded on that thread.

Mike