figure_generate.py

from PIL import Image, ImageDraw, ImageFilter
import numpy as np
import random

class SimplePolygon:
    pow2 = None

    def __init__(self, file_name, depth_name, tags_name,resolution=(512, 512), init_color=(255, 255, 255)):
        self.file_name = file_name
        self.depth_name = depth_name
        self.tags_name = tags_name
        self.width = resolution[0]
        self.height = resolution[1]
        self.components= [set([(wi, hi) for wi in range(512) for hi in range(512)])]
        self.img1 = np.full((self.width, self.height, 3), np.random.randint(0, 256, size=(3,), dtype=np.uint8), dtype=np.uint8)
        self.img2 = np.zeros([self.width, self.height, 3], dtype=np.uint8)
        self.count = 0
        if self.pow2 is None:
            self.pow2 = [x**2 for x in range(max(resolution[0],resolution[1])+1)]

    def generate(self):
        layer = np.zeros_like(self.components, dtype=np.uint16)
        noise = np.zeros(3, dtype=np.int16)
        if random.randint(1, 5)==1:
            noise = np.random.randint(-10, 10, size=(3,), dtype=np.int16)
        for i in range(len(self.components)):
            for j in range(i-1, -1, -1):
                if not self.components[i].isdisjoint(self.components[j]):
                    layer[i]=layer[j]+1
                    color = np.random.randint(0, 255, size=(3,), dtype=np.int16)
                    vec = np.random.randint(0, 255, size=(3,), dtype=np.int16)
                    ep = np.random.normal(0, 2, size=(2,))
                    for wi, hi in self.components[i]:
                        self.img1[wi][hi] = np.abs((color + vec * (ep[0] * wi / self.width + ep[1] * hi / self.height)+noise) % 512 - 256).astype(np.uint8)
                    break
        self.layer_max = np.max(layer)
        normalized_layer = ( (255 * layer) // self.layer_max).astype(np.uint8)
        for wi in range(self.width):
            for hi in range(self.height):
                for i in range(len(self.components)-1, -1, -1):
                    if (wi,hi) in self.components[i]:
                        self.img2[wi][hi][0] = normalized_layer[i]          
                        self.img2[wi][hi][1] = normalized_layer[i]          
                        self.img2[wi][hi][2] = normalized_layer[i]          
                        break

    def add_rect(self):
        left_top = [random.randint(0, self.width//10*9), random.randint(0, self.height//10*9)]
        poly_width = random.randint(60, self.width//2)
        poly_height = random.randint(60, self.height//2)
        poly = set()
        for wi in range(left_top[0], min(left_top[0]+poly_width, self.width)):
            for hi in range(left_top[1], min(left_top[1]+poly_height, self.height)):
                poly.add((wi, hi))
        self.components.append(poly)
        return poly

    def add_ellipse(self):
        center = [random.randint(self.width//10, self.width//10*9), random.randint(self.height//10, self.height//10*9)]
        radius_width = random.randint(60, self.width//4)
        radius_height = random.randint(60, self.height//4)
        poly = set()
        r = radius_width**2 * radius_height**2
        h2 = radius_height**2
        w2 = radius_width**2
        for wi in range(self.width):
            xx = h2 * self.pow2[abs(wi-center[0])]
            if xx > r:
                continue
            for hi in range(self.height):
                if xx + w2 * self.pow2[abs(hi-center[1])] <= r:
                    poly.add((wi, hi))
        self.components.append(poly)
        return poly
    def rotate_component(comp, radian):
        retv = set()
        return retv
    def save(self):
        Image.fromarray(self.img1).filter(filter=ImageFilter.GaussianBlur(random.randint(0, 1))).save(self.file_name)
        Image.fromarray(self.img2).save(self.depth_name)
        with open(self.tags_name, "w") as file:
            if self.layer_max is None:
                file.write("")
            else:
                file.write(f"{self.layer_max+1}depth")

    
import uuid
import concurrent.futures
from tqdm import tqdm
import os

def process_polygon():
    random_uuid = str(uuid.uuid4())
    polygon = SimplePolygon(f"data/{random_uuid}.png", f"label/{random_uuid}.png", f"data/{random_uuid}.txt")
    for _ in range(random.randint(4, 10)):
        if random.randint(0,1)==0:
            polygon.add_ellipse()
        else:
            polygon.add_rect()
    polygon.generate()
    polygon.save()

def main():
    if not os.path.exists("data"):
        os.makedirs("data")
    if not os.path.exists("label"):
        os.makedirs("label")
    num_processes = 12 
    total_runs = 100000 

    with tqdm(total=total_runs, ncols=80) as pbar:
        with concurrent.futures.ProcessPoolExecutor(max_workers=num_processes) as executor:
            futures = [executor.submit(process_polygon) for _ in range(total_runs)]
            for future in concurrent.futures.as_completed(futures):
                pbar.update(1)

if __name__ == "__main__":
    main()