Legacy ImageMagick Discussions Archive

I tried the affine example and it does indeed produce the leaky pixels. It also slightly reduces the size of the wizard and the colours are darker in all four images. I'm using IM 6.7.5 Q16. I'll try the other example when I get around to installing the latest IM. @magick if you want to try it, the ...

I'll try to have a look at this in the next day or so.

Pete

These are direct links to the source code of the two examples I mentioned.
http://members.shaw.ca/el.supremo/MagickWand/affine.htm

http://members.shaw.ca/el.supremo/Magic ... ffects.htm

Pete

My MagickWand examples in C (link is below in my sig) has examples of using MagickDistortImage in the affine transformation example and in the text effects example. It isn't C++ but it should help you with the arguments for the distort method.

Pete

Try setting the background colour before the deskew.

Pete

For the command line, see Anthony's examples of Colour and Resize Morphing at:
http://www.imagemagick.org/Usage/anim_mods/#morph

For the MagickWand API, see http://www.imagemagick.org/api/magick-i ... orphImages

Pete

The only thing I can suggest is to try replacing each occurrence of ClearMagickWand(w) with
DestroyMagickWand(w);
w = NewMagickWand();

to see if it makes any difference.

Pete

This is a fragment of some code I wrote in C which uses MagickWand. It creates a blank 6000x1000 image and then turns on the alpha channel. Perhaps you can find the equivalent of MagickSetImageAlphaChannel in Magick++. mw = NewMagickWand(); MagickSetSize(mw,6000,1000); MagickReadImage(mw,"xc:none ...

I tried your code in 6.7.5-10 and it reads the jpg without throwing an exception. Both Firefox and Paint Shop Pro X4 open the JPG without complaint. However, they don't display exactly the same image. OTOH, Corel Instant Viewer also opens the image but then hangs. Does, perhaps, the JPG standard ...

Add this piece of code. char error_string[256]; char *description; ExceptionType severity; description=MagickGetException(mw,&severity); FormatLocaleString(error_string,250,"%s %s %lu %s\n",GetMagickModule(),description); description=(char *) MagickRelinquishMemory(description); // Display the error ...

The MagickQueryFontMetrics(mw, dw, text) function returns metric information for the given text string from which you can compute where the strings should be placed.
See my fontmetrics example.

Pete

Have a look at my "Eight text effects in one function" in http://members.shaw.ca/el.supremo/MagickWand/. The third effect uses arc distortion. It's in C, but it should be easy convert to PHP.

Pete

Thanks for the reference Anthony.
Unfortunately, the only example I have uses a clip mask not a clip path.
There is a program called drawtest.c in the MagickWand directory of the svn code which sets a clipping path but I haven't tried it out yet to see how it works.

Pete

I've converted a couple of jp2 files to png without any errors. Can you post a link to one of the jp2 files which fails?

Pete

Give this a try: #include <windows.h> #include <wand/MagickWand.h> void test_wand(void) { MagickWand *mw = NULL,*mwa; MagickWandGenesis(); mw = NewMagickWand(); MagickReadImage(mw,"logo:"); MagickReadImage(mw,"logo:"); MagickResetIterator(mw); // Append the second image to the bottom (MagickTrue) of ...