async _call(images) {
        const result = await super._call(images);

        const dims = result.pixel_values.dims;
        const pixel_mask = ones([dims[0], dims[2], dims[3]]);

        return { ...result, pixel_mask };
    }
Calls the feature extraction process on an array of images, preprocesses
each image, and concatenates the resulting features into a single Tensor.
@param {import('../../utils/image.js').RawImage[]} images The image(s) to extract features from.
@returns {Promise<GroundingDinoFeatureExtractorResult>} An object containing the concatenated pixel values of the preprocessed images.