ae eval script
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rromb
parent
36b5177221
commit
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import argparse, os, sys, glob
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import torch
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import numpy as np
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import streamlit as st
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import matplotlib.pyplot as plt
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from omegaconf import OmegaConf
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from PIL import Image
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from main import instantiate_from_config, DataModuleFromConfig
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from torch.utils.data import DataLoader
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from torch.utils.data.dataloader import default_collate
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from einops import rearrange
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from torchvision.utils import make_grid
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rescale = lambda x: (x + 1.) / 2.
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def bchw_to_st(x):
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return rescale(x.detach().cpu().numpy().transpose(0,2,3,1))
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def chw_to_st(x):
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return rescale(x.detach().cpu().numpy().transpose(1,2,0))
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def custom_get_input(batch, key):
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inputs = batch[key].permute(0, 3, 1, 2)
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return inputs
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def vq_no_codebook_forward(model, x):
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h = model.encoder(x)
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h = model.quant_conv(h)
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h = model.post_quant_conv(h)
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xrec = model.decoder(h)
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return xrec
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def save_img(x, fname):
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I = (x.clip(0, 1) * 255).astype(np.uint8)
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Image.fromarray(I).save(fname)
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def get_parser():
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"-r",
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"--resume",
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type=str,
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nargs="?",
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help="load from logdir or checkpoint in logdir",
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)
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parser.add_argument(
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"-b",
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"--base",
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nargs="*",
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metavar="base_config.yaml",
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help="paths to base configs. Loaded from left-to-right. "
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"Parameters can be overwritten or added with command-line options of the form `--key value`.",
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default=list(),
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)
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parser.add_argument(
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"-c",
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"--config",
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nargs="?",
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metavar="single_config.yaml",
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help="path to single config. If specified, base configs will be ignored "
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"(except for the last one if left unspecified).",
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const=True,
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default="",
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)
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parser.add_argument(
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"--dataset_config",
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type=str,
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nargs="?",
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default="",
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help="path to dataset config"
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)
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return parser
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def load_model_from_config(config, sd, gpu=True, eval_mode=True):
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model = instantiate_from_config(config)
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if sd is not None:
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model.load_state_dict(sd)
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if gpu:
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model.cuda()
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if eval_mode:
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model.eval()
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return {"model": model}
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def get_data(config):
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# get data
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data = instantiate_from_config(config.data)
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data.prepare_data()
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data.setup()
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return data
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@st.cache(allow_output_mutation=True)
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def load_model_and_dset(config, ckpt, gpu, eval_mode, delete_dataset_params=False):
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# get data
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if delete_dataset_params:
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st.info("Deleting dataset parameters.")
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del config["data"]["params"]["train"]["params"]
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del config["data"]["params"]["validation"]["params"]
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dsets = get_data(config) # calls data.config ...
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# now load the specified checkpoint
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if ckpt:
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pl_sd = torch.load(ckpt, map_location="cpu")
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global_step = pl_sd["global_step"]
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else:
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pl_sd = {"state_dict": None}
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global_step = None
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model = load_model_from_config(config.model,
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pl_sd["state_dict"],
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gpu=gpu,
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eval_mode=eval_mode)["model"]
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return dsets, model, global_step
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@torch.no_grad()
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def get_image_embeddings(model, dset, used_codebook, used_indices):
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import plotly.graph_objects as go
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batch_size = st.number_input("Batch size for embedding visualization", min_value=1, value=4)
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start_index = st.number_input("Start index", value=0,
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min_value=0,
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max_value=len(dset) - batch_size)
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if st.sidebar.button("Sample Batch"):
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indices = np.random.choice(len(dset), batch_size)
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else:
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indices = list(range(start_index, start_index + batch_size))
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st.write(f"Indices: {indices}")
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batch = default_collate([dset[i] for i in indices])
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x = model.get_input(batch, "image")
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x = x.to(model.device)
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# get reconstruction from non-quantized and quantized, compare
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z_pre_quant = model.encode_to_prequant(x)
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z_quant, emb_loss, info = model.quantize(z_pre_quant)
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indices = info[2].detach().cpu().numpy()
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#indices = rearrange(indices, '(b d) -> b d', b=batch_size)
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unique_indices = np.unique(indices)
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st.write(f"Unique indices in batch: {unique_indices.shape[0]}")
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x1 = used_codebook[:, 0].cpu().numpy()
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x2 = used_codebook[:, 1].cpu().numpy()
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x3 = used_codebook[:, 2].cpu().numpy()
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zp1 = rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, 0].cpu().numpy()
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zp2 = rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, 1].cpu().numpy()
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zp3 = rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, 2].cpu().numpy()
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zq1 = rearrange(z_quant, 'b c h w -> (b h w) c')[:, 0].cpu().numpy()
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zq2 = rearrange(z_quant, 'b c h w -> (b h w) c')[:, 1].cpu().numpy()
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zq3 = rearrange(z_quant, 'b c h w -> (b h w) c')[:, 2].cpu().numpy()
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fig = go.Figure(data=[go.Scatter3d(x=x1, y=x2, z=x3, mode='markers', marker=dict(size=1.4, line=dict(width=1.,
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color="Blue")),
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name="All Used Codebook Entries"),
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])
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trace2 = go.Scatter3d(x=zp1, y=zp2, z=zp3, mode='markers', marker=dict(size=1., line=dict(width=1., color=indices)),
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name="Pre-Quant Codes")
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trace3 = go.Scatter3d(x=zq1, y=zq2, z=zq3, mode='markers',
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marker=dict(size=2., line=dict(width=10., color=indices)), name="Quantized Codes")
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fig.add_trace(trace2)
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fig.add_trace(trace3)
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fig.update_layout(
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autosize=False,
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width=1000,
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height=1000,
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)
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x_rec_no_quant = model.decode(z_pre_quant)
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x_rec_quant = model.decode(z_quant)
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delta_x = x_rec_no_quant - x_rec_quant
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st.text("Fitting Gaussian...")
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h, w = z_quant.shape[2], z_quant.shape[3]
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from sklearn.mixture import GaussianMixture
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gaussian = GaussianMixture(n_components=1)
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gaussian.fit(rearrange(z_pre_quant, 'b c h w -> (b h w) c').cpu().numpy())
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samples, _ = gaussian.sample(n_samples=batch_size*h*w)
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samples = rearrange(samples, '(b h w) c -> b h w c', b=batch_size, h=h, w=w, c=3)
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samples = rearrange(samples, 'b h w c -> b c h w')
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samples = torch.tensor(samples).to(z_quant)
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samples, _, _ = model.quantize(samples)
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x_sample = model.decode(samples)
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all_img = torch.stack([x, x_rec_quant, x_rec_no_quant, delta_x, x_sample]) # 5 b 3 H W
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all_img = rearrange(all_img, 'n b c h w -> b n c h w')
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all_img = rearrange(all_img, 'b n c h w -> (b n) c h w')
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grid = make_grid(all_img, nrow=5)
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st.write("** Input | Rec. (w/ quant) | Rec. (no quant) | Delta(quant, no_quant) **")
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st.image(chw_to_st(grid), clamp=True, output_format="PNG")
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st.write(fig)
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# 2d projections
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import matplotlib.pyplot as plt
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pairs = [(1, 0), (2, 0), (2, 1)]
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fig2, ax = plt.subplots(1, 3, figsize=(21, 7))
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for d in range(3):
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d1, d2 = pairs[d]
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#ax[d].scatter(used_codebook[:, d1].cpu().numpy(),
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# used_codebook[:, d2].cpu().numpy(),
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# label="All Used Codebook Entries", s=10.0, c=used_indices)
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ax[d].scatter(rearrange(z_quant, 'b c h w -> (b h w) c')[:, d1].cpu().numpy(),
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rearrange(z_quant, 'b c h w -> (b h w) c')[:, d2].cpu().numpy(),
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label="Quantized Codes", alpha=0.9, s=8.0, c=indices)
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ax[d].scatter(rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, d1].cpu().numpy(),
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rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, d2].cpu().numpy(),
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label="Pre-Quant Codes", alpha=0.5, s=1.0, c=indices)
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ax[d].set_title(f"dim {d2} vs dim {d1}")
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ax[d].legend()
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st.write(fig2)
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plt.close()
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# from scipy.spatial import Voronoi, voronoi_plot_2d
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# fig3 = plt.figure(figsize=(10,10))
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# points = rearrange(z_pre_quant, 'b c h w -> (b h w) c')[:, :2].cpu().numpy()
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# vor = Voronoi(points)
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# # plot
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# voronoi_plot_2d(vor)
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# # colorize
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# for region in vor.regions:
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# if not -1 in region:
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# polygon = [vor.vertices[i] for i in region]
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# plt.fill(*zip(*polygon))
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# plt.savefig("voronoi_test.png")
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# st.write(fig3)
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@torch.no_grad()
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def get_used_indices(model, dset, batch_size=20):
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dloader = torch.utils.data.DataLoader(dset, shuffle=True, batch_size=batch_size, drop_last=False)
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data = list()
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info = st.empty()
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for i, batch in enumerate(dloader):
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x = model.get_input(batch, "image")
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x = x.to(model.device)
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zq, _, zi = model.encode(x)
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indices = zi[2]
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indices = indices.reshape(zq.shape[0], -1).detach().cpu().numpy()
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data.append(indices)
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unique = np.unique(data)
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info.text(f"iteration {i} [{batch_size*i}/{len(dset)}]: unique indices found so far: {unique.size}")
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unique = np.unique(data)
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#np.save(outpath, unique)
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st.write(f"end of data: found **{unique.size} unique indices.**")
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print(f"end of data: found {unique.size} unique indices.")
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return unique
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def visualize3d(codebook, used_indices):
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import matplotlib.pyplot as plt
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from mpl_toolkits.mplot3d import Axes3D
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codebook = codebook.cpu().numpy()
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selected_codebook = codebook[used_indices, :]
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z_dim = codebook.shape[1]
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assert z_dim == 3
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pairs = [(1,0), (2,0), (2,1)]
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fig, ax = plt.subplots(1,3, figsize=(15,5))
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for d in range(3):
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d1, d2 = pairs[d]
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ax[d].scatter(selected_codebook[:, d1], selected_codebook[:, d2])
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ax[d].set_title(f"dim {d2} vs dim {d1}")
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st.write(fig)
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# # plot 3D
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# fig = plt.figure(1)
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# ax = Axes3D(fig)
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# ax.scatter(codebook[:, 0], codebook[:, 1], codebook[:, 2], s=10., alpha=0.8, label="all entries")
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# ax.scatter(selected_codebook[:, 0], selected_codebook[:, 1], selected_codebook[:, 2], s=3., alpha=1.0, label="used entries")
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# plt.legend()
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# #st.write(fig)
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# st.pyplot(fig)
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# plot histogram of vector norms
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fig = plt.figure(2, figsize=(6,5))
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norms = np.linalg.norm(selected_codebook, axis=1)
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plt.hist(norms, bins=100, edgecolor="black", lw=1.1)
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plt.title("Distribution of norms of used codebook entries")
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st.write(fig)
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# plot 3D with plotly
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import pandas as pd
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import plotly.graph_objects as go
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x = selected_codebook[:, 0]
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y = selected_codebook[:, 1]
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z = selected_codebook[:, 2]
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fig = go.Figure(data=[go.Scatter3d(x=x, y=y, z=z, mode='markers', marker=dict(size=2., line=dict(width=1.,
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color="Blue"))
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)
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]
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)
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fig.update_layout(
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autosize=False,
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width=1000,
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height=1000,
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)
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st.write(fig)
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@torch.no_grad()
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def get_fixed_points(model, dset):
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n_iter = st.number_input("Number of Iterations for FP-Analysis", min_value=1, value=25)
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batch_size = st.number_input("Batch size for fixed-point visualization", min_value=1, value=4)
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start_index = st.number_input("Start index", value=0, min_value=0, max_value=len(dset) - batch_size)
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clip_decoded = st.checkbox("Clip decoded image", False)
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quantize_decoded = st.checkbox("Quantize decoded image (e.g. map back to uint8)", False)
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factor = st.sidebar.number_input("image size", value=1., min_value=0.1)
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if st.sidebar.button("Sample Batch"):
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indices = np.random.choice(len(dset), batch_size)
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else:
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indices = list(range(start_index, start_index + batch_size))
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st.write(f"Indices: {indices}")
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batch = default_collate([dset[i] for i in indices])
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x = model.get_input(batch, "image")
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x = x.to(model.device)
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progress = st.empty()
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progress_cb = lambda k: progress.write(f"iteration {k}/{n_iter}")
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image_progress = st.empty() # TODO
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input = x
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img_quant = x
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img_noquant = x
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delta_img = img_quant - img_noquant
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st.write("** Input | Rec. (w/ quant) | Rec. (no quant) | Delta(quant, no_quant) **")
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def display(input, img_quant, img_noquant, delta_img):
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all_img = torch.stack([input, img_quant, img_noquant, delta_img]) # 4 b 3 H W
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all_img = rearrange(all_img, 'n b c h w -> b n c h w')
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all_img = rearrange(all_img, 'b n c h w -> (b n) c h w')
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grid = make_grid(all_img, nrow=4)
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image_progress.image(chw_to_st(grid), clamp=True, output_format="PNG", width=int(factor*grid.shape[2]))
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display(input, img_quant, img_noquant, delta_img)
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for n in range(n_iter):
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# get reconstruction from non-quantized and quantized, compare via iteration
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# quantized_stream
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z_pre_quant = model.encode_to_prequant(img_quant)
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z_quant, emb_loss, info = model.quantize(z_pre_quant)
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# non_quantized stream
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z_noquant = model.encode_to_prequant(img_noquant)
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img_quant = model.decode(z_quant)
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img_noquant = model.decode(z_noquant)
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if clip_decoded:
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img_quant = torch.clamp(img_quant, -1., 1.)
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img_noquant = torch.clamp(img_noquant, -1., 1.)
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if quantize_decoded:
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device = img_quant.device
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img_quant = (2*torch.Tensor(((img_quant.cpu().numpy()+1.)*127.5).astype(np.uint8))/255. - 1.).to(device)
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img_noquant = (2*torch.Tensor(((img_noquant.cpu().numpy()+1.)*127.5).astype(np.uint8))/255. - 1.).to(device)
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delta_img = img_quant - img_noquant
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display(input, img_quant, img_noquant, delta_img)
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progress_cb(n + 1)
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@torch.no_grad()
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def get_fixed_points_kl_ae(model, dset):
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n_iter = st.number_input("Number of Iterations for FP-Analysis", min_value=1, value=25)
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batch_size = st.number_input("Batch size for fixed-point visualization", min_value=1, value=4)
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start_index = st.number_input("Start index", value=0, min_value=0, max_value=len(dset) - batch_size)
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clip_decoded = st.checkbox("Clip decoded image", False)
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quantize_decoded = st.checkbox("Quantize decoded image (e.g. map back to uint8)", False)
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sample_posterior = st.checkbox("Sample from encoder posterior", False)
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factor = st.sidebar.number_input("image size", value=1., min_value=0.1)
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if st.sidebar.button("Sample Batch"):
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indices = np.random.choice(len(dset), batch_size)
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else:
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indices = list(range(start_index, start_index + batch_size))
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st.write(f"Indices: {indices}")
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batch = default_collate([dset[i] for i in indices])
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x = model.get_input(batch, "image")
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x = x.to(model.device)
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progress = st.empty()
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progress_cb = lambda k: progress.write(f"iteration {k}/{n_iter}")
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st.write("** Input | Rec. (no quant) | Delta(input, iter_rec) **")
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image_progress = st.empty()
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input = x
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img_noquant = x
|
||||
delta_img = input - img_noquant
|
||||
|
||||
def display(input, img_noquant, delta_img):
|
||||
all_img = torch.stack([input, img_noquant, delta_img]) # 3 b 3 H W
|
||||
all_img = rearrange(all_img, 'n b c h w -> b n c h w')
|
||||
all_img = rearrange(all_img, 'b n c h w -> (b n) c h w')
|
||||
grid = make_grid(all_img, nrow=3)
|
||||
image_progress.image(chw_to_st(grid), clamp=True, output_format="PNG", width=int(factor*grid.shape[2]))
|
||||
|
||||
fig, ax = plt.subplots()
|
||||
|
||||
distribution_progress = st.empty()
|
||||
def display_latent_distribution(latent_z, alpha=1., title=""):
|
||||
flatz = latent_z.reshape(-1).cpu().detach().numpy()
|
||||
#fig, ax = plt.subplots()
|
||||
ax.hist(flatz, bins=42, alpha=alpha, lw=.1, edgecolor="black")
|
||||
ax.set_title(title)
|
||||
distribution_progress.pyplot(fig)
|
||||
|
||||
display(input, img_noquant, delta_img)
|
||||
for n in range(n_iter):
|
||||
# get reconstructions
|
||||
|
||||
posterior = model.encode(img_noquant)
|
||||
if sample_posterior:
|
||||
z = posterior.sample()
|
||||
else:
|
||||
z = posterior.mode()
|
||||
|
||||
if n==0:
|
||||
flatz_init = z.reshape(-1).cpu().detach().numpy()
|
||||
std_init = flatz_init.std()
|
||||
max_init, min_init = flatz_init.max(), flatz_init.min()
|
||||
|
||||
display_latent_distribution(z, alpha=np.sqrt(1/(n+1)),
|
||||
title=f"initial z: std/min/max: {std_init:.2f}/{min_init:.2f}/{max_init:.2f}")
|
||||
|
||||
img_noquant = model.decode(z)
|
||||
if clip_decoded:
|
||||
img_noquant = torch.clamp(img_noquant, -1., 1.)
|
||||
if quantize_decoded:
|
||||
img_noquant = (2*torch.Tensor(((img_noquant.cpu().numpy()+1.)*127.5).astype(np.uint8))/255. - 1.).to(model.device)
|
||||
delta_img = img_noquant - input
|
||||
display(input, img_noquant, delta_img)
|
||||
progress_cb(n + 1)
|
||||
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
from ldm.models.autoencoder import AutoencoderKL
|
||||
# VISUALIZE USED AND ALL INDICES of VQ-Model. VISUALIZE FIXED POINTS OF KL MODEL
|
||||
sys.path.append(os.getcwd())
|
||||
|
||||
parser = get_parser()
|
||||
opt, unknown = parser.parse_known_args()
|
||||
|
||||
ckpt = None
|
||||
if opt.resume:
|
||||
if not os.path.exists(opt.resume):
|
||||
raise ValueError("Cannot find {}".format(opt.resume))
|
||||
if os.path.isfile(opt.resume):
|
||||
paths = opt.resume.split("/")
|
||||
try:
|
||||
idx = len(paths)-paths[::-1].index("logs")+1
|
||||
except ValueError:
|
||||
idx = -2 # take a guess: path/to/logdir/checkpoints/model.ckpt
|
||||
logdir = "/".join(paths[:idx])
|
||||
ckpt = opt.resume
|
||||
else:
|
||||
assert os.path.isdir(opt.resume), opt.resume
|
||||
logdir = opt.resume.rstrip("/")
|
||||
ckpt = os.path.join(logdir, "checkpoints", "last.ckpt")
|
||||
|
||||
base_configs = sorted(glob.glob(os.path.join(logdir, "configs/*-project.yaml")))
|
||||
opt.base = base_configs+opt.base
|
||||
|
||||
if opt.config:
|
||||
if type(opt.config) == str:
|
||||
opt.base = [opt.config]
|
||||
else:
|
||||
opt.base = [opt.base[-1]]
|
||||
|
||||
configs = [OmegaConf.load(cfg) for cfg in opt.base]
|
||||
cli = OmegaConf.from_dotlist(unknown)
|
||||
config = OmegaConf.merge(*configs, cli)
|
||||
|
||||
if opt.dataset_config:
|
||||
dcfg = OmegaConf.load(opt.dataset_config)
|
||||
print("Replacing data config with:")
|
||||
print(dcfg.pretty())
|
||||
dcfg = OmegaConf.to_container(dcfg)
|
||||
config["data"] = dcfg["data"]
|
||||
|
||||
st.sidebar.text(ckpt)
|
||||
gs = st.sidebar.empty()
|
||||
gs.text(f"Global step: ?")
|
||||
st.sidebar.text("Options")
|
||||
gpu = st.sidebar.checkbox("GPU", value=True)
|
||||
eval_mode = st.sidebar.checkbox("Eval Mode", value=True)
|
||||
show_config = st.sidebar.checkbox("Show Config", value=False)
|
||||
if show_config:
|
||||
st.info("Checkpoint: {}".format(ckpt))
|
||||
st.json(OmegaConf.to_container(config))
|
||||
|
||||
delelete_dataset_parameters = st.sidebar.checkbox("Delete parameters of dataset.")
|
||||
dsets, model, global_step = load_model_and_dset(config, ckpt, gpu, eval_mode,
|
||||
delete_dataset_params=delelete_dataset_parameters)
|
||||
gs.text(f"Global step: {global_step}")
|
||||
|
||||
split = st.sidebar.radio("Split", sorted(dsets.datasets.keys())[::-1])
|
||||
dset = dsets.datasets[split]
|
||||
|
||||
batch_size = st.sidebar.number_input("Batch size", min_value=1, value=20)
|
||||
num_batches = st.sidebar.number_input("Number of batches", min_value=1, value=5)
|
||||
data_size = batch_size*num_batches
|
||||
dset = torch.utils.data.Subset(dset, np.random.choice(np.arange(len(dset)), size=(data_size,), replace=False))
|
||||
|
||||
if not isinstance(model, AutoencoderKL):
|
||||
# VQ MODEL
|
||||
codebook = model.quantize.embedding.weight.data
|
||||
st.write(f"VQ-Model has codebook of dimensionality **{codebook.shape[0]} x {codebook.shape[1]} (num_entries x z_dim)**")
|
||||
st.write(f"Evaluating codebook-usage on **{config['data']['params'][split]['target']}**")
|
||||
st.write("**Select ONE of the following options**")
|
||||
|
||||
if st.checkbox("Show Codebook Statistics", False):
|
||||
used_indices = get_used_indices(model, dset, batch_size=batch_size)
|
||||
visualize3d(codebook, used_indices)
|
||||
if st.checkbox("Show Batch Encodings", False):
|
||||
used_indices = get_used_indices(model, dset, batch_size=batch_size)
|
||||
get_image_embeddings(model, dset, codebook[used_indices, :], used_indices)
|
||||
if st.checkbox("Show Fixed Points of Data", False):
|
||||
get_fixed_points(model, dset)
|
||||
|
||||
else:
|
||||
st.info("Detected a KL model")
|
||||
get_fixed_points_kl_ae(model, dset)
|
||||
Loading…
Reference in New Issue