Legacy ImageMagick Discussions Archive

IM 7 is more sensitive the syntax order. Your syntax is wrong. Read the input before any processing This works for me. magick input.jpg \( shamrock.gif -resize 400x300 \) -gravity center -compose CopyOpacity -composite out.gif See https://imagemagick.org/Usage/basics/#cmdline https://imagemagick.org...

OK. I will add it to my list for my next edit session.

You need to rebuild the flattened layer from all the other layers after removing the flattened layer from each of the input images.

Is the OP asking about MagickWand or Python Wand?

willemijns2 wrote: ↑2019-09-15T20:40:03-07:00 I simplified the syntax here

I do not understand what you simplified! Did my command work? If not then post your exact command.

Please fix your syntax and test again. The following should work fine. If it does not, then let us know. magick -size 2480x3508 xc:white -annotate +120+120 "Hello World" emptypage.png However, you have not specified a font or pointsize. Thus you may not see the text you wrote very well. Bu...

-size 2480x3508 needs an image to work on. Annotate does not create one. It just adds to an existing one. Move you xc:white right after -size 2480x3508. IM 7 is more picky about syntax order than IM 6. Use Magick only, not magick convert, even if it works. That may invoke IM 6 behavior if you add co...

-compose over is the default. But I always add it, especially when I have done other compose methods prior in the command line to reset it.

Sorry, see my changed solution -- add -colorspace sRGB after reading emptypage.png

Add -colorspace sRGB right after reading in emptypage.png in your second command. The white image is being treated as single channel grayscale, but should be 3 channel truecolor, since named colors even if black or white are supposed to be treated as color not grayscale. I confirm your issue on IM 7...

The page at https://imagemagick.org/script/formats.php, says HEIC R Apple High efficiency Image Format HEIC requires the libheif delegate library. So ImageMagick can only read HEIC as far as I know. Check on your system using convert -list format and look at the line for HEIC assuming you have insta...

I am not sure I understand your question. Are you saying you get an error from
What do you get from
What is your version of libpng?

You can see that from
and look at the end of the line for PNG

What is your ImageMagick version and platform? What was your exact command line? Can you provide your input image?

-filter Triangle -resize is just doing bilinear, so it is more "smooth" than lanczos.

See the discussion by Nicolas Robidoux who came up with the method you have found. See https://imagemagick.org/Usage/filter/nicolas/. He has other filter besides plain lanczos that you might try. The short answer is perhaps trade blurring for ringing by adjusting the resample blur amount with -defin...