Legacy ImageMagick Discussions Archive

Try the following, they seem to work for me. convert \( lena.jpg -resize 100x100! -write lena100.jpg \) \ -clone 0 -delete 0--2 -resize 50x50! lena50.jpg convert \( lena.jpg -write mpr:lena -delete 0 \) \ \( mpr:lena -resize 100x100! -write lena100.jpg +delete \) \ mpr:lena -resize 50x50! lena50.jpg...

I think you are missing my point. I suspect IM is changing the amount of compression on your image so that sometimes it ends up with higher quality and lower compression, even when you take away the metadata and some border. The only thing you can do that I know of is to change the quality setting t...

Try:

convert \( background.tif -coalesce \) null: overlay.bmp -gravity NorthEast -geometry +150+150 -compose multiply -layers composite result.tif


see:

http://www.imagemagick.org/script/comma ... hp?#layers
http://www.imagemagick.org/Usage/anim_mods/#composite

If you are keeping the image as jpg after -strip, then the issue is what quality level IM is applying automatically when it generates your output jpg. JPG is a lossy compression storage format. If you want a smaller file size, then you need to add -quality to your command line. To find out what you ...

You have not said what type of image you are using. If jpg, then the issue is the amount of compression that IM is applying after stripping the metadata compared to what you had before. Also remember that IM makes 3 channels for you images, I think, even if it is grayscale.

try convert -size 500x500 xc:green -font "c:\WINDOWS\Fonts\tt1046m_.ttf" label:"Welcome Back Jessica" "c:\pathtoimages\Jessica.gif" This should make a 500x500 green image with your font in it. But you need to tell it what size font you want and what color font you want ...

I am still unable to build IM (now 6.3.8-10) from source and get it to recognize a (no-error) install of Ghostscript-8.15 (from the IM delegates library). When doing my ./configure of IM, I get the following messages regarding Ghostscript: Checking for Ghostscript support ---------------------------...

Why not use '(0.4*rand()+0.3)' in your -fx expression? Yes that would work for random noise (but fx is slower than +noise). But how do I handle that for Uniform or Gaussian noise or any other type that you have in +noise? Are there any advanced user settings for +noise that would accommodate that? ...

I have had success with generating random noise images in previous version 6.3.7.x, but I am having trouble with IM 6.3.8-6 Q16 on Mac OS X Tiger. When I do: convert logo: -colorspace Gray +noise Random logo_random.png I get a totally black image. when I do convert logo: -colorspace Gray +noise Unif...

I don't think you are changing colorspaces correctly. I think that only works if you start from RGB and go to some other colorspace. I don't think IM knows that your image is CMYK and so you need to tell it in a round about way. See http://www.imagemagick.org/Usage/channels/#combine_other where you ...

How are you determining what 50% is to be transparent? You could use -black-threshold to put all pixels that are the bottom 50% graylevel to black leaving the rest as is. Then use -transparent black to make all the thresholded pixels go transparent. convert <infile> -channel RGB -black-threshold 50%...

I have never used morph before, but have you tried: convert \( -delay 60 -morph 1 file1.jpg file2.jpg \) \( -delay 120 -morph 5 file3.jpg file4.jpg \) out.gif This should give you delay 60 for file 1 and 2 each as a frame and delay 120 for five frames between file 3 and 4. Let us know if that works.

I am no expert and have not verified any of these, but you can do str=`cat textfile.txt` Then try convert -font helvetica -fill white -pointsize 80 -draw 'text 700,250 "$st" 172945.dpx 172945_new.cin You can also try using -annotate 0 "$str" or composite label:"$str" Pu...

You also need to first download and install the FFTW 3.1.2 delegate library.

http://www.fftw.org/download.html

identify <image>

or for more information

identify -verbose info: <image>