Legacy ImageMagick Discussions Archive

The full makefile is at the top of the thread; I did rm *.o to force all the .o files to be recompiled versions. I have tried moving the library arguments all over the g++ command, including right at the end, and before the output file, but it makes no difference.

I understand the basic idea of an ...

Thanks for responses. (I have been otherwise occupied.) Unfortunately, this gets me nowhere: my makefile has exactly the compiler command listed, except for the optimisation parameter. And it produces the following output, which is an error from ld . This seems to suggest there is a version ...

Can someone help me with getting Imagemagick++ to work under FreeBSD, or reinstall it? I have a small C++ program to do some basic image manipulation (basic, but very specific); it ran on my webserver (at pair.com hosting), but suddenly stopped working, because of some upgrade or other. When I tried ...

type is something different. It sets the type of image that should be saved (or read in).
Type can add/remove channels but only as a side effect not as its main function.
Channels however restricts some operations to specific channels of an image.

OK. Well, "type" works, in that it enables me in ...

Found it!

Well, here's the list of methods available for the Image class:

http://www.imagemagick.org/Magick++/Image.html#Raw%20Image%20Pixel%20Access

But the one we need is missing: it's "type". Now, when I think of transparency, I think of 'alpha channel', or I think of 'channels', but no, I don ...

Thanks for your response...

to replace opacity channel you will also need to specify a 'A' channel in the channel flags.

I can't find "channel flags" in the Magick++ API documentation. Are you saying that to use this I first have to become so familiar with the command line interface that I can ...

I hesitate to respond, since I am new to ImageMagick, but I think the answer is simple.

ImageMagick (and all the wrappers like Magick++) is a *bitmap graphics* package. It allows you to draw vectors, but only in bitmap form -- in other words, once you draw a circle it is converted to a lot of pixel ...

I am new to (Image)Magick++, so please forgive blunders, impatience, etc etc

I am trying to do some low-level pixel twiddling; I took most of last weekend to get to the point where I can read and write individual pixel RGB values. Now I want to handle the alpha channel directly, but to save ...