Legacy ImageMagick Discussions Archive

Transparent over the blue background: http://origin-media.onecall.com/Image_Products/Panasonic/Panasonic-RP-HS200-K-Black-vfr-detail.png Converting to jpeg, you will forever choose one background color. The 'corruption' may not be resize or ImageMagick at all. The fully transparent pixels have a col...

Is this caused by -resize or the png->jpeg conversion?

Try:
convert in.png -background white -flatten out.jpg

The image probably contains an alpha channel (transparency), which is supported by png but not jpeg. I'll check.

A great solution!

Windows users, read more about loops and extracting part of a file name:
http://technet.microsoft.com/en-us/libr ... 90909.aspx

This is also covered in the ImageMagick Usage Examples:
http://www.imagemagick.org/Usage/windows/#filenames

The wildcards * and ? expand to a list of files, but the output files don't yet exist and so this doesn't make sense. Even if they did exist, ImageMagick couldn't match the inputs to the outputs. Fortunately there is a solution. See:
http://www.imagemagick.org/Usage/files/#save_escapes

convert in.png -set option:a "%[fx:maxima]" -evaluate Set %[a] out.png I don't know if this is valid. I don't know if IM allows such construct in -evaluate set "%[a]". But try with quotes. If that does not work, then you need to confirm with Anthony or Magick if that is a valid ...

My understanding: PDF is most often used as a vector format. ImageMagick converts everything to raster. Therefore, your quality will go down and your file size up with your operation. A tool other than ImageMagick will handle vector formats better, although I have no suggestions. Set the -density to...

I notice that you are using the old syntax. For more information see http://www.imagemagick.org/Usage/basics/#why The new syntax would be more like convert.exe source.gif -coalesce -resize 320x320 -alpha set +repage -layers optimize converted.gif This may not be your only problem, but I don't see an...

If you are feeling down trodden, you could always install CgiWin and get a BASH shell on a windows box :lol: I should know more of linux. I know a bit of Perl, but then I change Windows machines and it's not available. Or I could learn VBScript or Windows PowerShell. My curiosity exceeds my time an...

What if the original pixel was 'white' which is well outside the bounds and as such does not match. However it does give me a solution, Use one of the colors as BOTH fill and the opaque color. Funny that my post lead me to the same wondering, and my second post an hour later lead me to the same sol...

Wow, 1700 images! Typing in all those names is clearly not an option. ImageMagick can input files using * or ? wildcards, but I don't know how the order works out. Hopefully well since you would almost need a Perl script to generate the batch file. What have you tried and where are you stuck? Can yo...

I'm only a new user myself, but I'm sure they would appreciate your support . They certainly deserve some. I didn't test my proposed solution so please let us know if it somehow doesn't meet your needs. I have done much combining of images, but I only work with one at a time and so have never tried ...

You need a script to tell you if the two colors are within 'fuzz factor' of each other? Or you need to tell inside a -fx statement? A more complex script, but a numerical output of the fuzzified color count: outputs = Script( fuzz_distance , color_1 , color_2 ) > convert -size 1x1 xc: green xc: lime...

Good proposal! More functionality but no added complexity for the user who doesn't need it.

Probably can't be done for historical compatibly reasons, but I propose that the % symbol never be used. Countless hours have been wasted by us outcast Windows users.

I'm not sure I fully understand or what format the answer should take. Given two colors (named or otherwise), the fill color (white below) will be the result if they are within each other. > convert -size 1x1 xc: red -fuzz 1% -fill white -opaque #e00 -format "%c" histogram:info: 1: (65535,...