Legacy ImageMagick Discussions Archive

I have a UIImage on which I am trying to apply auto gamma correction using the function: AutoGammaImage(Image *).
When I pass the UIImage directly to the function after bridge casting, I get the following error:

Assertion failed: (image->signature == MagickSignature), function GetImageChannelMean, file magick/statistic.c, line 1215.

Please tell me how should I convert the UIImage to an Image* for passing to this function.

Code: Select all

UIImage *sourceImage; // Your UIImage
    NSData *imgData=UIImagePNGRepresentation(sourceImage);
    MagickReadImageBlob(mw, [imgData bytes], [imgData length]);
    Image *image=GetImageFromMagickWand(mw);

Legacy ImageMagick Discussions Archive

Conversion of UIImage to Image* in iOS

Conversion of UIImage to Image* in iOS

Re: Conversion of UIImage to Image* in iOS