Can't reproduce results in even very basic cases?
#22
by dgaff - opened
If I use the Inference API widget on the model card tab of this page, for the following case, (i.e, download this image, then enter as text cat,not_cat), I get a score of 0.53,0.47 cat/not_cat:
If I run what I would assume would be the identical code for computing the result, I get a wildly different score. What gives?
from PIL import Image
import requests
from transformers import CLIPProcessor, CLIPModel
model = CLIPModel.from_pretrained("openai/clip-vit-base-patch32")
processor = CLIPProcessor.from_pretrained("openai/clip-vit-base-patch32")
url = "http://images.cocodataset.org/val2017/000000039769.jpg"
image = Image.open(requests.get(url, stream=True).raw)
inputs = processor(text=["cat", "not_cat"], images=image, return_tensors="pt", padding=True)
outputs = model(**inputs)
logits_per_image = outputs.logits_per_image # this is the image-text similarity score
logits_per_image.softmax(dim=1) # we can take the softmax to get the label probabilities
Yields: tensor([[0.2322, 0.7678]], grad_fn=<SoftmaxBackward0>)
This is totally unworkable if this is the case? I have to be missing something, right? I can't be this off-base. This is on Transformers 4.46.2, but seems to happen with latest as well?