Update main.py

main.py

@@ -1,214 +1,33 @@
-from __future__ import annotations
 from fastapi import FastAPI, File, UploadFile, Form
 from fastapi.responses import StreamingResponse
 from fastapi.staticfiles import StaticFiles
-import torch
 import shutil
 import cv2
 import numpy as np
 import dlib
 from torchvision import transforms
 import torch.nn.functional as F
-from vtoonify_model import Model  # Importing the Model class from vtoonify_model.py
 import gradio as gr
-import pathlib
-import sys
-sys.path.insert(0, 'vtoonify')
-
-from util import load_psp_standalone, get_video_crop_parameter, tensor2cv2
-import torch
-import torch.nn as nn
-import numpy as np
-import dlib
-import cv2
-from model.vtoonify import VToonify
-from model.bisenet.model import BiSeNet
-import torch.nn.functional as F
-from torchvision import transforms
-from model.encoder.align_all_parallel import align_face
-import gc
-import huggingface_hub
 import os
 from io import BytesIO
 
 app = FastAPI()
 
-MODEL_REPO = 'PKUWilliamYang/VToonify'
+# Load model and necessary components
+model = None
 
-class Model():
-    def __init__(self, device):
-        super().__init__()
-        
-        self.device = device
-        self.style_types = {
-            'cartoon1': ['vtoonify_d_cartoon/vtoonify_s026_d0.5.pt', 26],
-            'cartoon1-d': ['vtoonify_d_cartoon/vtoonify_s_d.pt', 26],
-            'cartoon2-d': ['vtoonify_d_cartoon/vtoonify_s_d.pt', 64],
-            'cartoon3-d': ['vtoonify_d_cartoon/vtoonify_s_d.pt', 153],
-            'cartoon4': ['vtoonify_d_cartoon/vtoonify_s299_d0.5.pt', 299],
-            'cartoon4-d': ['vtoonify_d_cartoon/vtoonify_s_d.pt', 299],
-            'cartoon5-d': ['vtoonify_d_cartoon/vtoonify_s_d.pt', 8],
-            'comic1-d': ['vtoonify_d_comic/vtoonify_s_d.pt', 28],
-            'comic2-d': ['vtoonify_d_comic/vtoonify_s_d.pt', 18],
-            'arcane1': ['vtoonify_d_arcane/vtoonify_s000_d0.5.pt', 0],
-            'arcane1-d': ['vtoonify_d_arcane/vtoonify_s_d.pt', 0],
-            'arcane2': ['vtoonify_d_arcane/vtoonify_s077_d0.5.pt', 77],
-            'arcane2-d': ['vtoonify_d_arcane/vtoonify_s_d.pt', 77],
-            'caricature1': ['vtoonify_d_caricature/vtoonify_s039_d0.5.pt', 39],
-            'caricature2': ['vtoonify_d_caricature/vtoonify_s068_d0.5.pt', 68],
-            'pixar': ['vtoonify_d_pixar/vtoonify_s052_d0.5.pt', 52],
-            'pixar-d': ['vtoonify_d_pixar/vtoonify_s_d.pt', 52],
-            'illustration1-d': ['vtoonify_d_illustration/vtoonify_s054_d_c.pt', 54],
-            'illustration2-d': ['vtoonify_d_illustration/vtoonify_s004_d_c.pt', 4],
-            'illustration3-d': ['vtoonify_d_illustration/vtoonify_s009_d_c.pt', 9],
-            'illustration4-d': ['vtoonify_d_illustration/vtoonify_s043_d_c.pt', 43],
-            'illustration5-d': ['vtoonify_d_illustration/vtoonify_s086_d_c.pt', 86],
-        }
-        
-        self.landmarkpredictor = self._create_dlib_landmark_model()
-        self.parsingpredictor = self._create_parsing_model()
-        self.pspencoder = self._load_encoder()    
-        self.transform = transforms.Compose([
-            transforms.ToTensor(),
-            transforms.Normalize(mean=[0.5, 0.5, 0.5],std=[0.5,0.5,0.5]),
-            ])
-        
-        self.vtoonify, self.exstyle = self._load_default_model()
-        self.color_transfer = False
-        self.style_name = 'cartoon1'
-        self.video_limit_cpu = 100
-        self.video_limit_gpu = 300
-        
-    def _create_dlib_landmark_model(self):
-        return dlib.shape_predictor(huggingface_hub.hf_hub_download(MODEL_REPO, 'models/shape_predictor_68_face_landmarks.dat'))
-    
-    def _create_parsing_model(self):
-        parsingpredictor = BiSeNet(n_classes=19)
-        parsingpredictor.load_state_dict(torch.load(huggingface_hub.hf_hub_download(MODEL_REPO, 'models/faceparsing.pth'),
-                                                    map_location=lambda storage, loc: storage))
-        parsingpredictor.to(self.device).eval()
-        return parsingpredictor
-    
-    def _load_encoder(self) -> nn.Module:
-        style_encoder_path = huggingface_hub.hf_hub_download(MODEL_REPO, 'models/encoder.pt')
-        return load_psp_standalone(style_encoder_path, self.device)
-    
-    def _load_default_model(self) -> tuple[torch.Tensor, str]:
-        vtoonify = VToonify(backbone='dualstylegan')
-        vtoonify.load_state_dict(torch.load(huggingface_hub.hf_hub_download(MODEL_REPO,
-                                            'models/vtoonify_d_cartoon/vtoonify_s026_d0.5.pt'), 
-                                            map_location=lambda storage, loc: storage)['g_ema'])
-        vtoonify.to(self.device)
-        tmp = np.load(huggingface_hub.hf_hub_download(MODEL_REPO, 'models/vtoonify_d_cartoon/exstyle_code.npy'), allow_pickle=True).item()
-        exstyle = torch.tensor(tmp[list(tmp.keys())[26]]).to(self.device)
-        with torch.no_grad():  
-            exstyle = vtoonify.zplus2wplus(exstyle)
-        return vtoonify, exstyle
-    
-    def load_model(self, style_type: str) -> tuple[torch.Tensor, str]:
-        if 'illustration' in style_type:
-            self.color_transfer = True
-        else:
-            self.color_transfer = False
-        if style_type not in self.style_types.keys():
-            return None, 'Oops, wrong Style Type. Please select a valid model.'
-        self.style_name = style_type
-        model_path, ind = self.style_types[style_type]
-        style_path = os.path.join('models', os.path.dirname(model_path), 'exstyle_code.npy')
-        self.vtoonify.load_state_dict(torch.load(huggingface_hub.hf_hub_download(MODEL_REPO, 'models/' + model_path), 
-                                            map_location=lambda storage, loc: storage)['g_ema'])
-        tmp = np.load(huggingface_hub.hf_hub_download(MODEL_REPO, style_path), allow_pickle=True).item()
-        exstyle = torch.tensor(tmp[list(tmp.keys())[ind]]).to(self.device)
-        with torch.no_grad():  
-            exstyle = self.vtoonify.zplus2wplus(exstyle)
-        return exstyle, 'Model of %s loaded.' % (style_type)
+def load_model():
+    global model
+    from vtoonify_model import Model
+    model = Model(device='cuda' if torch.cuda.is_available() else 'cpu')
+    model.load_model('cartoon1')
     
-    def detect_and_align(self, frame, top, bottom, left, right, return_para=False):
-        message = 'Error: no face detected! Please retry or change the photo.'
-        paras = get_video_crop_parameter(frame, self.landmarkpredictor, [left, right, top, bottom])
-        instyle = None
-        h, w, scale = 0, 0, 0
-        if paras is not None:
-            h, w, top, bottom, left, right, scale = paras
-            H, W = int(bottom-top), int(right-left)
-            # for HR image, we apply gaussian blur to it to avoid over-sharp stylization results
-            kernel_1d = np.array([[0.125],[0.375],[0.375],[0.125]])
-            if scale <= 0.75:
-                frame = cv2.sepFilter2D(frame, -1, kernel_1d, kernel_1d)
-            if scale <= 0.375:
-                frame = cv2.sepFilter2D(frame, -1, kernel_1d, kernel_1d)
-            frame = cv2.resize(frame, (w, h))[top:bottom, left:right]
-            with torch.no_grad():
-                I = align_face(frame, self.landmarkpredictor)
-                if I is not None:
-                    I = self.transform(I).unsqueeze(dim=0).to(self.device)
-                    instyle = self.pspencoder(I)
-                    instyle = self.vtoonify.zplus2wplus(instyle)
-                    message = 'Successfully rescale the frame to (%d, %d)' % (bottom-top, right-left)
-                else:
-                    frame = np.zeros((256, 256, 3), np.uint8)
-        else:
-            frame = np.zeros((256, 256, 3), np.uint8)
-        if return_para:
-            return frame, instyle, message, w, h, top, bottom, left, right, scale
-        return frame, instyle, message
-    
-    #@torch.inference_mode()
-    def detect_and_align_image(self, image: str, top: int, bottom: int, left: int, right: int
-                              ) -> tuple[np.ndarray, torch.Tensor, str]:
-        if image is None:
-            return np.zeros((256, 256, 3), np.uint8), None, 'Error: fail to load empty file.'
-        frame = cv2.imread(image)
-        if frame is None:
-            return np.zeros((256, 256, 3), np.uint8), None, 'Error: fail to load the image.'       
-        frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
-        return self.detect_and_align(frame, top, bottom, left, right)
-    
-    def detect_and_align_video(self, video: str, top: int, bottom: int, left: int, right: int
-                              ) -> tuple[np.ndarray, torch.Tensor, str]:
-        if video is None:
-            return np.zeros((256, 256, 3), np.uint8), None, 'Error: fail to load empty file.'
-        video_cap = cv2.VideoCapture(video)
-        if video_cap.get(7) == 0:
-            video_cap.release()
-            return np.zeros((256, 256, 3), np.uint8), torch.zeros(1, 18, 512).to(self.device), 'Error: fail to load the video.'
-        success, frame = video_cap.read()
-        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
-        video_cap.release()
-        return self.detect_and_align(frame, top, bottom, left, right)
-    
-  
-    def image_toonify(self, aligned_face: np.ndarray, instyle: torch.Tensor, exstyle: torch.Tensor, style_degree: float, style_type: str) -> tuple[np.ndarray, str]:
-        #print(style_type + ' ' + self.style_name)
-        if instyle is None or aligned_face is None:
-            return np.zeros((256, 256, 3), np.uint8), 'Opps, something wrong with the input. Please go to Step 2 and Rescale Image/First Frame again.'
-        if self.style_name != style_type:
-            exstyle, _  = self.load_model(style_type)
-        if exstyle is None:
-            return np.zeros((256, 256, 3), np.uint8), 'Opps, something wrong with the style type. Please go to Step 1 and load model again.'
-        with torch.no_grad():
-            if self.color_transfer:
-                s_w = exstyle
-            else:
-                s_w = instyle.clone()
-                s_w[:,:7] = exstyle[:,:7]
-
-            x = self.transform(aligned_face).unsqueeze(dim=0).to(self.device)
-            x_p = F.interpolate(self.parsingpredictor(2*(F.interpolate(x, scale_factor=2, mode='bilinear', align_corners=False)))[0], 
-                                scale_factor=0.5, recompute_scale_factor=False).detach()
-            inputs = torch.cat((x, x_p/16.), dim=1)
-            y_tilde = self.vtoonify(inputs, s_w.repeat(inputs.size(0), 1, 1), d_s=style_degree)        
-            y_tilde = torch.clamp(y_tilde, -1, 1)
-        print('*** Toonify %dx%d image with style of %s' % (y_tilde.shape[2], y_tilde.shape[3], style_type))
-        return ((y_tilde[0].cpu().numpy().transpose(1, 2, 0) + 1.0) * 127.5).astype(np.uint8), 'Successfully toonify the image with style of %s' % (self.style_name)
-
-model = Model(device='cuda' if torch.cuda.is_available() else 'cpu')
-
-
+# Define endpoints
 @app.post("/upload/")
 async def process_image(file: UploadFile = File(...), top: int = Form(...), bottom: int = Form(...), left: int = Form(...), right: int = Form(...)):
+    global model
     if model is None:
-        return {"error": "Model not loaded."}
+        load_model()
 
     # Save the uploaded image locally with its original filename
     with open("uploaded_image.jpg", "wb") as buffer:
@@ -221,8 +40,8 @@ async def process_image(file: UploadFile = File(...), top: int = Form(...), bott
     frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
 
     # Process the uploaded image
-    aligned_face, instyle, message = model.detect_and_align_image("uploaded_image.jpg", top, bottom, left, right)
-    processed_image, message = model.image_toonify(aligned_face, instyle, model.exstyle, style_degree=0.5, style_type='illustration1-d')
+    aligned_face, instyle, message = model.detect_and_align_image(frame_rgb, top, bottom, left, right)
+    processed_image, message = model.image_toonify(aligned_face, instyle, model.exstyle, style_degree=0.5, style_type='cartoon1')
 
     # Convert processed image to bytes
     image_bytes = cv2.imencode('.jpg', processed_image)[1].tobytes()
@@ -230,10 +49,10 @@ async def process_image(file: UploadFile = File(...), top: int = Form(...), bott
     # Return the processed image as a streaming response
     return StreamingResponse(BytesIO(image_bytes), media_type="image/jpeg")
 
-
+# Mount static files directory
 app.mount("/", StaticFiles(directory="AB", html=True), name="static")
 
-
+# Define index route
 @app.get("/")
-def index() -> FileResponse:
+def index():
     return FileResponse(path="/app/AB/index.html", media_type="text/html")