Legacy ImageMagick Discussions Archive

I've taken commands from both Fred's imagemagick scripts and imagemagick tutorials that call for creating a blank canvas, applying changes to it (noise, etc.) and then combining them with the image. In each case, the final image comes out nearly identical to the originial. I must be missing somethin...

Thanks, that looks quite good. Dithering to 3 colors worked nicely for me as well.

I'm trying to get a handle on how to combine my command sequences into workable scripts. This IM guide http://www.imagemagick.org/Usage/windows/ has so far been helpful, but some of it is a bit beyond me. I really have no scripting/programming experience and need to find some more elementary instruc...

Below is the rough version of how I got a Warhol style image. Question, though: could anyone point me to a guide on combining this many commands in windows command prompt? Or, put another way, is it possible to create and manipulate four seperate images within the same command? I'm hoping to do batc...

Well... thanks for all the effort. I suppose I have settings wrong somewhere?

Thanks, the first three only came out as two colors, which is why I was stuck when I did that method. But, I got the gradient made and got it applied to the image. I'm sure you know, though, that the result is wacky, just chunks of crude RGB color fitted to the darkness and lightness of the B&W ...

Hi, I've been trying the spread command on IM 6.6.7.7 Q16. IM is running on a Dell Precision T3500 with windows 7 (quad core E5507 processor, 4gigs ram if that matters) This is my input: convert rose: -spread 3 rose_spread3.png or: Convert test.jpg -spread 3 spread.png In both cases, as well as othe...

I'm looking over both pages and having a hard time understanding just how I can generate the rainbow/lut and then use it to color the an image. I followed enough to use the +level-colors operator, but I'm not clear on how to completely re-color an image. Example: convert charcoal.jpg +level-colors r...

So strange... I just reinstalled imagemagick with the latest version, and put in your exact commands. Same result: big block of yellow.

I've wondering if there is a way to imitate chalk pastel with imagemagick. I could imagine a color charcoal transformation coming close, but does the charcoal transformation necessitate turning an image B&W? In photoshop, there are filters to apply chalk strokes, brush strokes, etc. I don't know...

I'm working with IM 6.6.7.5 Just tried a new Image, located http://cvcl.mit.edu/hybrid/cat2.jpg In doing that I found that the output is the average color of the image. (I got a big block of yellow for this, grey for another.) I tried different values and got the same result. This is with both png a...

Is there a bug with spread? I've tried

convert rose: -spread 3 rose_spread3.png

Result: small green square.

Convert test.jpg -spread 3 spread.png

Result: all grey image.
Those results are on both windows and Cygwin.

fmw45: both tests were true Anthony: I changed that portion of script to: if [ "06060705" -ge "06040805" ] && echo "true"; then # create multi-image miff (sine tmpA1 cosine), then pass to composite -displace convert $tmp0 \ -channel R -evaluate sine $density \ -...

convert -resize [desired width] input.jpg output.jpg will keep proportions.

I doublechecked and the script I'm using does say " [ "$im_version" -ge "06040805" ] " and 06060705 appears nowhere. (Of course, that is the IM version I have) Here are the test results: a=1 if [ $a -ge 1 ]; then True b="a" if [ "$b" == "a"...