support image mixing in streamlit

scripts/streamlit/stableunclip.py

@@ -18,7 +18,6 @@ from ldm.models.diffusion.ddim import DDIMSampler
 from ldm.models.diffusion.plms import PLMSSampler
 from ldm.models.diffusion.dpm_solver import DPMSolverSampler
 
-
 torch.set_grad_enabled(False)
 
 PROMPTS_ROOT = "scripts/prompts/"
@@ -46,8 +45,8 @@ def instantiate_from_config(config):
     return get_obj_from_str(config["target"])(**config.get("params", dict()))
 
 
-def get_interactive_image():
+def get_interactive_image(key=None):
-    image = st.file_uploader("Input", type=["jpg", "JPEG", "png"])
+    image = st.file_uploader("Input", type=["jpg", "JPEG", "png"], key=key)
     if image is not None:
         image = Image.open(image)
         if not image.mode == "RGB":
@@ -55,8 +54,8 @@ def get_interactive_image():
         return image
 
 
-def load_img(display=True):
+def load_img(display=True, key=None):
-    image = get_interactive_image()
+    image = get_interactive_image(key=key)
     if display:
         st.image(image)
     w, h = image.size
@@ -69,8 +68,8 @@ def load_img(display=True):
     return 2. * image - 1.
 
 
-def get_init_img(batch_size=1):
+def get_init_img(batch_size=1, key=None):
-    init_image = load_img().cuda()
+    init_image = load_img(key=key).cuda()
     init_image = repeat(init_image, '1 ... -> b ...', b=batch_size)
     return init_image
 
@@ -99,7 +98,7 @@ def sample(
 ):
     batch_size = n_samples
     precision_scope = autocast if not use_full_precision else nullcontext
-    #decoderscope = autocast if not use_full_precision else nullcontext
+    # decoderscope = autocast if not use_full_precision else nullcontext
     if use_full_precision: st.warning(f"Running {model.__class__.__name__} at full precision.")
     if isinstance(prompt, str):
         prompt = [prompt]
@@ -274,8 +273,8 @@ if __name__ == "__main__":
     st.title("Stable unCLIP")
     mode = "txt2img"
     version = st.selectbox("Model Version", list(VERSION2SPECS.keys()), 0)
-    use_karlo = version in ["Stable unCLIP-L"] and st.checkbox("Use KARLO prior", False)
+    use_karlo_prior = version in ["Stable unCLIP-L"] and st.checkbox("Use KARLO prior", False)
-    state = init(version=version, load_karlo_prior=use_karlo)
+    state = init(version=version, load_karlo_prior=use_karlo_prior)
     prompt = st.text_input("Prompt", "a professional photograph")
     negative_prompt = st.text_input("Negative Prompt", "")
     scale = st.number_input("cfg-scale", value=10., min_value=-100., max_value=100.)
@@ -309,7 +308,7 @@ if __name__ == "__main__":
             raise ValueError(f"unknown sampler {sampler}!")
 
     adm_cond, adm_uc = None, None
-    if use_karlo:
+    if use_karlo_prior:
         # uses the prior
         karlo_sampler = state["karlo_prior"]
         noise_level = None
@@ -330,19 +329,44 @@ if __name__ == "__main__":
                     torch.tensor([noise_level]).to(state["model"].device), '1 -> b', b=number_cols))
                 adm_cond = torch.cat((c_adm, noise_level_emb), 1)
             adm_uc = torch.zeros_like(adm_cond)
-
+    elif version == "Full Karlo":
+        pass
     else:
-        init_img = get_init_img(batch_size=number_cols)
+        num_inputs = st.number_input("Number of Input Images", 1)
+
+
+        def make_conditionings_from_input(num=1, key=None):
+            init_img = get_init_img(batch_size=number_cols, key=key)
             with torch.no_grad():
                 adm_cond = state["model"].embedder(init_img)
+                weight = st.slider(f"Weight for Input {num}", min_value=-10., max_value=10., value=1.)
                 if state["model"].noise_augmentor is not None:
-                noise_level = st.number_input("Noise Augmentation for CLIP embeddings", min_value=0,
+                    noise_level = st.number_input(f"Noise Augmentation for CLIP embedding of input #{num}", min_value=0,
-                                              max_value=state["model"].noise_augmentor.max_noise_level - 1, value=0)
+                                                  max_value=state["model"].noise_augmentor.max_noise_level - 1,
+                                                  value=0, )
                     c_adm, noise_level_emb = state["model"].noise_augmentor(adm_cond, noise_level=repeat(
                         torch.tensor([noise_level]).to(state["model"].device), '1 -> b', b=number_cols))
-                # assume this gives embeddings of noise levels
+                    adm_cond = torch.cat((c_adm, noise_level_emb), 1) * weight
-                adm_cond = torch.cat((c_adm, noise_level_emb), 1)
                 adm_uc = torch.zeros_like(adm_cond)
+            return adm_cond, adm_uc, weight
+
+
+        adm_inputs = list()
+        weights = list()
+        for n in range(num_inputs):
+            adm_cond, adm_uc, w = make_conditionings_from_input(num=n + 1, key=n)
+            weights.append(w)
+            adm_inputs.append(adm_cond)
+        adm_cond = torch.stack(adm_inputs).sum(0) / sum(weights)
+        if num_inputs > 1:
+            if st.checkbox("Apply Noise to Embedding Mix", True):
+                noise_level = st.number_input(f"Noise Augmentation for averaged CLIP embeddings", min_value=0,
+                                              max_value=state["model"].noise_augmentor.max_noise_level - 1, value=0, )
+                c_adm, noise_level_emb = state["model"].noise_augmentor(
+                    adm_cond[:, :state["model"].noise_augmentor.time_embed.dim],
+                    noise_level=repeat(
+                        torch.tensor([noise_level]).to(state["model"].device), '1 -> b', b=number_cols))
+                adm_cond = torch.cat((c_adm, noise_level_emb), 1)
 
     if st.button("Sample"):
         print("running prompt:", prompt)
@@ -350,10 +374,12 @@ if __name__ == "__main__":
         t_progress = st.progress(0)
         result = st.empty()
 
+
         def t_callback(t):
             t_progress.progress(min((t + 1) / steps, 1.))
 
-        if version == "KARLO":
+
+        if version == "Full Karlo":
             outputs = st.empty()
             karlo_sampler = state["karlo_prior"]
             all_samples = list()
@@ -388,4 +414,3 @@ if __name__ == "__main__":
                 use_full_precision=force_full_precision,
                 only_adm_cond=False
             )
-