Update app.py

app.py

@@ -139,7 +139,7 @@ def next_image(embs, ys, calibrate_prompts):
             rng_prompt = random.choice(prompt_list)
             w = 1# if len(embs) % 2 == 0 else 0
             im_emb = w * lin_class.coef_.to(device=DEVICE, dtype=torch.float16)
-            prompt= '' if glob_idx % 2 == 0 else rng_prompt
+            prompt= 'an image' if glob_idx % 2 == 0 else rng_prompt
             print(prompt, len(ys))
             image, im_emb = predict(prompt, im_emb)
             embs.append(im_emb)