[CLIPSegForImageSegmentation] adds a decoder on top of [CLIPSegModel]. The latter is identical to [CLIPModel].
[CLIPSegForImageSegmentation] can generate image segmentations based on arbitrary prompts at test time. A prompt can be either a text
(provided to the model as input_ids) or an image (provided to the model as conditional_pixel_values). One can also provide custom
conditional embeddings (provided to the model as conditional_embeddings).