Is it possible to use equivalent of magick compare with this wasm?

[rgembalik]

I saw that the IMagickImage.compare is implemented, but it returns a numeric value. Is it possible to get a diff image as it is returned with https://imagemagick.org/script/compare.php?

[dlemstra]

This is possible with the underlying API but I have not exposed this yet in the typescript api. I can add this for you but I could use your help with how we should name this new method and it's signature.

// This is the current method and we should keep this.
compare(image: IMagickImage, metric: ErrorMetric): number;

// And add an extra overload
compareSomething(image: IMagickImage, metric: ErrorMetric, func: (something: ISomething) => TReturnType): TReturnType;

interface ISomething
{
   distortion: number;
   something: IMagickImage;
}

Can you help me with names for the somethings?

[dlemstra]

I have updated my comment and changed the signature a bit because the diffImage should only be available inside a function because it is using native memory and that needs to be cleaned up when you are done with the image. I do like the ICompareResult name so I will be going to use that. And I will let you know how this change was made.

[dlemstra]

I just pushed this patch that added support for this: 1b68ec5. I will be going to add an extra overload with some extra settings tomorrow or this weekend.

This patch also included some extra work because this was the first time that I needed a pointer for a double.

[rgembalik]

Awesome! Thank you for the update and generally for such a quick response.

This looks great. I'd be happy to test it once it's released, even as beta (I tried installation from GH, but since I cannot build it w/o magick-native I figured it's best to wait).

[dlemstra]

I just published a new release that includes the changes that I made. Thanks for helping out.