Search found 25047 matches

by fmw42
2008-02-20T12:30:08-07:00
Forum: Bugs
Topic: IM Mac OS X Tiger can't find Ghostscript - SOLVED
Replies: 6
Views: 15908

Re: Build IM 6.3.8-10 Mac OS X Tiger fails to find Ghostscript

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 ---------------------------...
by fmw42
2008-02-20T11:09:09-07:00
Forum: Bugs
Topic: Possible bug in +noise random
Replies: 3
Views: 8161

Re: Possible bug in +noise random

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? ...
by fmw42
2008-02-19T21:59:04-07:00
Forum: Bugs
Topic: Possible bug in +noise random
Replies: 3
Views: 8161

Possible bug in +noise random

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...
by fmw42
2008-02-19T19:20:05-07:00
Forum: Users
Topic: Color Conversion Problem
Replies: 3
Views: 7255

Re: Color Conversion Problem

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 ...
by fmw42
2008-02-19T19:11:04-07:00
Forum: Users
Topic: png transparency question
Replies: 3
Views: 7418

Re: png transparency question

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%...
by fmw42
2008-02-19T18:58:21-07:00
Forum: Users
Topic: How to do different -delay after last morph?
Replies: 3
Views: 11050

Re: How to do different -delay after last morph?

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.
by fmw42
2008-02-19T18:45:19-07:00
Forum: Users
Topic: text from a file
Replies: 1
Views: 4340

Re: text from a file

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" Putting double quotes around $st...
by fmw42
2008-02-18T19:06:25-07:00
Forum: Developers
Topic: FFT package update
Replies: 2
Views: 13236

Re: FFT package update

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

http://www.fftw.org/download.html
by fmw42
2008-02-18T18:59:21-07:00
Forum: Users
Topic: Fast way to get Image Info (size, datatype info)
Replies: 5
Views: 67731

Re: Fast way to get Image Info (size, datatype info)

identify <image>

or for more information

identify -verbose info: <image>
by fmw42
2008-02-17T19:32:57-07:00
Forum: Users
Topic: How do I make background transparent?
Replies: 6
Views: 66529

Re: How do I make background transparent?

convert input.gif -transparent white output.gif

assuming the background is pure 100% white
by fmw42
2008-02-14T13:01:56-07:00
Forum: Users
Topic: Encipher / Decipher
Replies: 11
Views: 23794

Re: Encipher / Decipher

Interesting. So how would one tell the difference between an enciphered image and one create with +noise in IM?
by fmw42
2008-02-12T20:42:53-07:00
Forum: Users
Topic: is it possible to add a label/text without an alpha channel
Replies: 1
Views: 4367

Re: is it possible to add a label/text without an alpha channel

Apparently your input images are RGBA. If so, try removing the alpha channel by adding -channel RGB after your <inputFile> or before your <outputFile>
by fmw42
2008-02-12T20:36:54-07:00
Forum: Users
Topic: montage command doesn`t work
Replies: 4
Views: 10045

Re: montage command doesn`t work

Are pic1 and pic2 generic names for the files or are they the actual file names? If the latter, then perhaps you need to append the actual suffix for IM to know what type of input images they are (.e.g. .jpg, .png, etc). You also likely need to tell montage what format you want the two image montage...
by fmw42
2008-02-12T20:29:11-07:00
Forum: Bugs
Topic: 1-bit bw pict file convert to jpeg
Replies: 5
Views: 13165

Re: 1-bit bw pict file convert to jpeg

In my opinion it is valid as I can display it on my Mac in Preview and several other Mac-based image processing tools. But I think it is a very strange image and perhaps either IM cannot handle it or we do not know how to convert it in IM to a viewable format. Hopefully, Anthony or someone else will...
by fmw42
2008-02-12T14:33:31-07:00
Forum: Bugs
Topic: 1-bit bw pict file convert to jpeg
Replies: 5
Views: 13165

Re: 1-bit bw pict file convert to jpeg

You have a very strange image. I can display it on my Mac in Preview and see your image (as .pct or PICT is a Mac format). But it has 3 gray shades - black, white and gray. So even though it is a binary image according to IM, it has a white background (which is all that IM will display), a gray matt...