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import cv2
import numpy as np
import gradio as gr
from PIL import Image
import paddlehub as hub
from methods.img2pixl import pixL
from examples.pixelArt.combine import combine
from examples.pixelArt.white_box_cartoonizer.cartoonize import WB_Cartoonize
model = hub.Module(name='U2Net')
pixl = pixL()
combine = combine()

def GIF(fname,pixel_size):
    print(fname)
    gif = Image.open(fname)
    frames = []
    for i in range(gif.n_frames):
        gif.seek(i)
        frame = Image.new('RGB', gif.size)
        frame.paste(gif)
        frame = np.array(frame)
        frames.append(frame)
    print(len(frames))
    
    result = pixl.toThePixL(frames, pixel_size)
    print(len(result), result[0].shape)
    frames = []
    for frame in result:
        
        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
        frame = Image.fromarray(frame)    
        frames.append(frame)
    print(type(frames), len(frames), type(frames[0]), frames[0].size)
    frames[0].save('new.gif', append_images=frames, save_all=True, loop=1)
    return Image.open('cache.gif')

def func_tab1(image,pixel_size, checkbox1):
  if image.name.endswith('.gif'):
    GIF(image.name,pixel_size)
  else:
    image = cv2.imread(image.name)
    image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
    image = WB_Cartoonize().infer(image)
    image = np.array(image)
    image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
    if checkbox1:
      result = model.Segmentation(
          images=[image],
          paths=None,
          batch_size=1,
          input_size=320,  
          output_dir='output',
          visualization=True)
      result = combine.combiner(images = pixl.toThePixL([result[0]['front'][:,:,::-1], result[0]['mask']], 
                                                        pixel_size),
                                background_image = image)
    else:
      result = pixl.toThePixL([image], pixel_size)
    return result

inputs_tab1 = [gr.inputs.Image(type='file', label="Image"),
               gr.Slider(4, 100, value=12, step = 2, label="Pixel Size"),
               gr.Checkbox(label="Object-Oriented Inference", value=False)]
outputs_tab1 = [gr.Image(type="file",label="Front")]

gr.Interface(fn = func_tab1,
                    inputs = inputs_tab1,
                    outputs = outputs_tab1).launch()