Legacy ImageMagick Discussions Archive

Hi fmw42 and snibgo! Thank guys! You are great and definitely deserve acknowledgement if this ever gets published haha! I will try what you guys have suggested... I may be back with more Q's! fmw42 : If we have the amount of pixels for white bone calculated from a blank diagram, and then i calculate ...

Snibgo! I need your help again :) If you read our previous correspondence, i hope it will refresh your mind as to what I am trying to do with IM. Since the last comments, I have got my proper image (still not that great) and I am running into some issues. Please find the basic image in the following ...

Yeah I hope that once I receive my actual diagram that it will not have those issues (like the white surrounding the bone!).

Without needing to change anyn non-white pixels into black, what would the command look like to work out %?

Wow thanks so much for that! That's great! The diagrams I will be using are much more accurate so hopefully the percentage will be too- I wish i had some sort of 3D way of doing the documentation but I think that may be a little above my capabilities, haha. Your help has been much appreciated - I ...

Hey, here is a dropbox link to an example https://www.dropbox.com/sh/dcskqjscbpe7hyw/AABYTZ75uE8XHTwkh1AhgAS-a?dl=0 Please note that these are not the diagrams i will be using - i am waiting for permission to use a much more anatomically correct one... I was just playing around with these to get use ...

The documentation http://www.imagemagick.org/script/command-line-options.php#metric describes PSNR as peak signal to noise ratio, which sounds a strange way of measuring what you describe. A more obvious measure would be the proportion (or percentage) of bone loss. This would be the number of ...

Hey, I need help! I am new to using ImageMagick. I am wanting to use it to create some values to images for research purposes. I am documenting the loss of bone by filling in a skeletal diagram (essentially blacking out the missing bones). So far i was using the the compare function with PSNR (so ...