Legacy ImageMagick Discussions Archive

Hi Friends,
I am facing a problem in compiling and executing a c program which uses ImageMagick.h header file. It compiled without any error, but while executing the code i get the following error message..

Code: Select all

example1: coders/jpeg.c:679: ReadJPEGImage: Assertion `exception->signature == 0xabacadabUL' failed.
Aborted

To give complete information, the program is written just to check the utility of ImageMagick..

Code: Select all


Image *image;

      ImageInfo image_info;

      ExceptionInfo *exception;

      /*
        Initialize the image info structure and read an image.
      */
      GetImageInfo(&image_info);
      (void) strcpy(image_info.filename,"image.jpg");
      image=ReadImage(&image_info,exception);
      if (image == (Image *) NULL)
        exit(1);

Did anybody face this problem before??

It means the structure you gave to the IM library was NOT the structure it was expecting.

"exception" is an uninitialized pointer.
You can declare, initialize and use it like this:

Code: Select all

ExceptionInfo exception;

GetExceptionInfo(&exception);
image=ReadImage(&image_info,&exception);

Pete

The newer preferred way to handle exceptions:

ExceptionInfo *exception;
exception=AcquireExceptionInfo();
image=ReadImage(ImageInfo,exception);
...
exception=DestroyExceptionInfo(exception);

That better be put in the architecture document.

Along with any changes to the whey a function should handle colors, and specifically
the CMYK black channel and alpha channel.

Legacy ImageMagick Discussions Archive

compilation error

compilation error

Re: compilation error

Re: compilation error

Re: compilation error

Re: compilation error