Ali Mohammad
commited on
Commit
•
e7eee8e
1
Parent(s):
d8b02aa
add app file
Browse files- demo_search.py +189 -0
demo_search.py
ADDED
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1 |
+
import gradio as gr
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2 |
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import torch
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3 |
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import copy
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import time
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import requests
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import io
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import numpy as np
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8 |
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import re
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from einops import rearrange
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import ipdb
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from PIL import Image
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from vilt.config import ex
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from vilt.modules import ViLTransformerSS
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from vilt.modules.objectives import cost_matrix_cosine, ipot
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from vilt.transforms import pixelbert_transform
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from vilt.datamodules.datamodule_base import get_pretrained_tokenizer
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@ex.automain
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def main(_config):
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_config = copy.deepcopy(_config)
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loss_names = {
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"itm": 1,
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"mlm": 0.5,
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"mpp": 0,
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"vqa": 0,
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"imgcls": 0,
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"nlvr2": 0,
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"irtr": 1,
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"arc": 0,
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}
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tokenizer = get_pretrained_tokenizer(_config["tokenizer"])
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_config.update(
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{
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"loss_names": loss_names,
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}
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)
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model = ViLTransformerSS(_config)
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model.setup("test")
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model.eval()
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device = "cuda:0" if _config["num_gpus"] > 0 else "cpu"
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model.to(device)
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lst_imgs = [f"C:\\Users\\alimh\\PycharmProjects\\ViLT\\assets\\database\\{i}.jpg" for i in range(1,10)]
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52 |
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def infer( mp_text, hidx =0 ):
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def get_image(path):
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56 |
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image = Image.open(path).convert("RGB")
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img = pixelbert_transform(size=384)(image)
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return img.unsqueeze(0).to(device)
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+
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imgs = [get_image(pth) for pth in lst_imgs]
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batch = []
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for img in imgs:
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batch.append({"text": [mp_text], "image": [img]})
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+
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for dic in batch:
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encoded = tokenizer(dic["text"])
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dic["text_ids"] = torch.tensor(encoded["input_ids"]).to(device)
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dic["text_labels"] = torch.tensor(encoded["input_ids"]).to(device)
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dic["text_masks"] = torch.tensor(encoded["attention_mask"]).to(device)
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scores = []
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with torch.no_grad():
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for dic in batch:
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s = time.time()
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infer = model(dic)
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e = time.time()
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print("time ", round(e - s, 2))
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score = model.rank_output(infer["cls_feats"])
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scores.append(score.item())
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print(scores)
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img_idx =np.argmax(scores)
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print(np.argmax(scores) + 1 )
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selected_image = Image.open(lst_imgs[img_idx]).convert("RGB")
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selected_image = np.asarray(selected_image)
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print(selected_image.shape)
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selected_token =""
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if hidx > 0 and hidx < len(encoded["input_ids"][0][:-1]):
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image = Image.open(lst_imgs[img_idx]).convert("RGB")
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selected_batch = batch[img_idx]
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with torch.no_grad():
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infer = model(selected_batch)
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txt_emb, img_emb = infer["text_feats"], infer["image_feats"]
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txt_mask, img_mask = (
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infer["text_masks"].bool(),
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infer["image_masks"].bool(),
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)
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for i, _len in enumerate(txt_mask.sum(dim=1)):
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txt_mask[i, _len - 1] = False
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txt_mask[:, 0] = False
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img_mask[:, 0] = False
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txt_pad, img_pad = ~txt_mask, ~img_mask
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cost = cost_matrix_cosine(txt_emb.float(), img_emb.float())
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joint_pad = txt_pad.unsqueeze(-1) | img_pad.unsqueeze(-2)
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cost.masked_fill_(joint_pad, 0)
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txt_len = (txt_pad.size(1) - txt_pad.sum(dim=1, keepdim=False)).to(
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dtype=cost.dtype
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)
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img_len = (img_pad.size(1) - img_pad.sum(dim=1, keepdim=False)).to(
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dtype=cost.dtype
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)
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T = ipot(
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cost.detach(),
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txt_len,
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txt_pad,
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img_len,
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img_pad,
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joint_pad,
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0.1,
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1000,
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1,
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)
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plan = T[0]
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131 |
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plan_single = plan * len(txt_emb)
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132 |
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cost_ = plan_single.t()
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133 |
+
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cost_ = cost_[hidx][1:].cpu()
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+
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136 |
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patch_index, (H, W) = infer["patch_index"]
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137 |
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heatmap = torch.zeros(H, W)
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for i, pidx in enumerate(patch_index[0]):
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h, w = pidx[0].item(), pidx[1].item()
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heatmap[h, w] = cost_[i]
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heatmap = (heatmap - heatmap.mean()) / heatmap.std()
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heatmap = np.clip(heatmap, 1.0, 3.0)
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heatmap = (heatmap - heatmap.min()) / (heatmap.max() - heatmap.min())
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145 |
+
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146 |
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_w, _h = image.size
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147 |
+
overlay = Image.fromarray(np.uint8(heatmap * 255), "L").resize(
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148 |
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(_w, _h), resample=Image.NEAREST
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)
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image_rgba = image.copy()
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151 |
+
image_rgba.putalpha(overlay)
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selected_image = image_rgba
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153 |
+
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154 |
+
selected_token = tokenizer.convert_ids_to_tokens(
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155 |
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encoded["input_ids"][0][hidx]
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156 |
+
)
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157 |
+
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158 |
+
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159 |
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return [selected_image,hidx]
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160 |
+
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161 |
+
imgs = [Image.open(pth).convert("RGB") for pth in lst_imgs]
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162 |
+
inputs = [
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163 |
+
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164 |
+
gr.inputs.Textbox(label="Caption with [MASK] tokens to be filled.", lines=5),
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165 |
+
gr.inputs.Slider(
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166 |
+
minimum=0,
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167 |
+
maximum=38,
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168 |
+
step=1,
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169 |
+
label="Index of token for heatmap visualization (ignored if zero)",
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170 |
+
),
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171 |
+
]
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172 |
+
outputs = [
|
173 |
+
gr.outputs.Image(label="Image"),
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174 |
+
|
175 |
+
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176 |
+
gr.outputs.Textbox(label="matching index "),
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177 |
+
]
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178 |
+
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179 |
+
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180 |
+
interface = gr.Interface(
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181 |
+
fn=infer,
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182 |
+
inputs=inputs,
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183 |
+
outputs=outputs,
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184 |
+
server_name="localhost",
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185 |
+
server_port=8888,
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186 |
+
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187 |
+
)
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188 |
+
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189 |
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interface.launch(debug=True,share=False)
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