How can I set the interpolation method when I resize the image?

[ichaozai]

I see there is an option "interpolate" for utility "convert" to specify the interpolation method.

I want to resize the image with the bilinear or other algorithm in my own program, but I can't find any API to do this with Magick++ C++ library.

How can I set the interpolation method when I resize the image?

[snibgo]

I don't use Magick++, but perhaps the answer is to set image->interpolate to the required value, such as BilinearInterpolatePixel.

See magick\image.h and magick\pixel.h

[ichaozai]

The internal core image struct is opaque to the caller of Magick++, I can't set core image struct's attribute directly.

Finally, I dig into the source code and add a setter function to manipulate the core image sturct for C++ class Magick++::Image to set the interpolation method.

[dlemstra]

Can you post your changes? I can add it to Magick++ when I am back from my holiday