Legacy ImageMagick Discussions Archive

i am just reporting that this proved to be the problem! once i recalculated my coefficients to work with pixel values having a range of 0 to 1, then plugged those new coefficients into the convert function, things worked perfectly! so imagemagick had no trouble using all of those digits to the right ...

Thank you SO MUCH snibgo !

I imagined this was most probably somehow my fault. I did not realize the pixel values needed to be rescaled to be in between 0 and 1.

ill go back to the drawing board and try this again.

again thanks for the suggestion.

ive posted a clear to follow step-by-step procedure of how i came to derive the required coefficients, and the exact command i ran, as well as providing a link to the sample image (these coefficients were designed for). the document is a bit long, and includes a number of embedded images, so ive ...

i am having trouble using the convert in.jpg -function Polynomial 0.123(how many digits are actually supported by convert?)325,0.1234567890123456789012325,0.12345678901234567890123250.1234567890123456789012325 out.jpg function. the example above shows arbitrary polynomial coefficients. the convert ...

it seems i did mistakenly enter wrong coordinates. once i specified the proper coordinates - it worked as expected. my sincere apologies for wasting bandwidth here... "C:\Program Files (x86)\ImageMagick-6.8.6-Q16\convert.exe" in.png -verbose -distort Perspective "250.5,250.5,500.5,500.5 2249.5,250.5 ...

actually, the reference points ive used are the four corners of my 'black and white grid' upper-left corner of 'black and white' grid (250,250) upper-right corner of 'black and white' grid (2449,250) lower-left corner of 'black and white grid' (250,2449) lower-right corner of 'black and white grid ...

In the example I did (using IM 6.8.6-Q16), i intentionally kept the lower-left and lower-right 'corners' of my image IDENTICAL (eg; specified to NOT shift), and i intentionally shifted the upper-left and upper-right 'corners' of my image. ImageMagick did do the distort, but in my opinion - it did so ...

i am using a newer version if ImageMagick 6.8.6-Q16 Windows x86 build - and this same problem persists. ive been hoping for a long while to finally get to use ImageMagick with ActivePerl. i finally have this configured and am rather unhappy to discover i also can not reliably set pixel values within ...

the explanation is very much appreciated. but from what ive read its more than daunting for someone unfamiliar with c++ to as a first time introduction, compile the glorious 'imagemagick' with all of its required libraries. if anyone can point me to a 'step by step' 'how to build imagemagick for ...

I was wondering if any imagemagick developer might be able and willing to compile imagemagick6.7.1 to install and run on WindowsXP service pack 1. built in a manner where it has full 'delegate' support to integrate with 'Ghostscript', 'ffmpeg', and other image delegates that i already have installed ...

is there a way to convert an RGB image file to either: a. a CIELab color space (PDF supports such a native color space, as does OpenExr), or b. to a CIELab raw ASCII format? can any one provide a sample one-liner that would demonstrate this usage? the reason being i need to convert an RGB image file ...

to add more information here...

actually the computer is XP sp1

though ive made a few changes in the registry so that it reports sp2.

true fact is that ive not run the XP sp2 upgrade on that computer.

so technically, imagemagick 6.7.1 was installed to an XP sp1 computer.

The official docs say ImageMagick 6.7.1 requires XP sp3.
This is not true.
I just installed it to XP sp2.

Just wanted anyone who cares to know this...

The requirements page states clearly that Imagemagick 6.7.1.0 REQUIRES Windows XP Service Pack 3. Lots of software developers make this statement - yet it proves NOT to be a hard requirement. I have a happily running older version of Imagemagick on my Windows XP sp 1 computer, and I am hesitant to ...