import colorsys from io import BytesIO import requests from PIL import Image import numpy as np from matplotlib import pyplot as plt def apply_convolution_operator(operator, image): if isinstance(image, str): image = Image.open(image) if isinstance(image, Image.Image): x_pixel, y_pixel = image.size # turn into editable list of colors data = np.asarray(image, dtype=np.uint8) # storage for the convoluted image data_new = np.zeros([y_pixel, x_pixel, 3], dtype=np.uint8) for i in range(1, y_pixel - 1): for j in range(1, x_pixel - 1): for k in range(3): new_value = ( operator[0, 0] * data[i - 1, j - 1, k] + operator[0, 1] * data[i - 1, j, k] + operator[0, 2] * data[i - 1, j + 1, k] + operator[1, 0] * data[i, j - 1, k] + operator[1, 1] * data[i, j, k] + operator[1, 2] * data[i, j + 1, k] + operator[2, 0] * data[i + 1, j - 1, k] + operator[2, 1] * data[i + 1, j, k] + operator[2, 2] * data[i + 1, j + 1, k] ) new_value = max(0, min(new_value, 255)) data_new[i, j, k] = new_value return Image.fromarray(data_new) else: raise TypeError("Not a valid instance of Image.Image") g1 = np.array([ [0, 1, 0], [0, 0, 0], [0, -1, 0] ]) g2 = np.array([ [1, 0, 0], [0, 0, 0], [0, 0, -1] ]) g3 = np.array([ [0, 0, 0], [1, 0, -1], [0, 0, 0] ]) g4 = np.array([ [0, 0, 1], [0, 0, 0], [-1, 0, 0] ]) identity = np.array([ [0, 0, 0], [0, 1, 0], [0, 0, 0] ]) laplace = np.array([ [0, 1, 0], [1, -4, 1], [0, 1, 0] ]) sharp = np.array([ [0, -1, 0], [-1, 5, -1], [0, -1, 0] ]) url = "https://media.newyorker.com/photos/5e3b18f932d7150008e6cf16/master/w_2240,c_limit/Neima-Picard.jpg" response = requests.get(url) if response.status_code == 200: image = Image.open(BytesIO(response.content)) operators = [g1, g2, g3, g4] for operator in operators: image_edited = apply_convolution_operator(operator, image) image_edited.show() else: print(f"Failed to download image. Status code: {response.status_code}") class Heatmap_Simulator: k, h, delta_f = 1, 0.01, 0.05 # Add more accurate cooling effect: # tmp_min, tmp_max, env = -0.5, 1, -0.5 tmp_min, tmp_max, env = 0, 1, 0 cookie_size = 0.5 def __init__(self, y_size=28, x_size=28): init_heatmap = np.full((y_size, x_size), self.tmp_min) self.x_size = x_size self.y_size = y_size size = self.cookie_size / 2 for y in range(int(y_size * (0.5 - size)), int(y_size * (0.5 + size))): for x in range(int(x_size * (0.5 - size)), int(x_size * (0.5 + size))): init_heatmap[y][x] = self.tmp_max self.heatmap = init_heatmap def simulate(self, cycles=1): for c in range(cycles): new_heatmap = np.zeros((self.y_size, self.x_size)) for y in range(self.y_size): for x in range(self.x_size): u = self.heatmap[y, x] value = u + self.delta_f * (self.k / (1 ** 2)) * self._consider_convolution(x, y) value = max(self.tmp_min, min(self.tmp_max, value)) new_heatmap[y][x] = value self.heatmap = new_heatmap def _consider_convolution(self, x, y): top = self.heatmap[y - 1, x] if y > 0 else self.env bottom = self.heatmap[y + 1, x] if y < self.heatmap.shape[0] - 1 else self.env left = self.heatmap[y, x - 1] if x > 0 else self.env right = self.heatmap[y, x + 1] if x < self.heatmap.shape[1] - 1 else self.env center = self.heatmap[y, x] return top + bottom + left + right + center * (-4) def export(self): if self.heatmap is not None: return Heatmap_Image(self.heatmap, 0, 1) else: AttributeError("Heatmap is not initialized.") class Visual_Heatmap_Simulator(Heatmap_Simulator): def __init__(self, y_size=28, x_size=28, delay=0.5): super().__init__(y_size, x_size) self.delay = delay def simulate_visual(self, cycles=100, skip=5): for c in range(cycles): if c != 0: self.simulate(1) if c % skip == 0: self._update_plot() print(f"Figure updated: {c}.") def _update_plot(self): plt.imshow(self.heatmap, cmap='viridis', interpolation='nearest', vmin=self.tmp_min, vmax=self.tmp_max) plt.draw() plt.pause(self.delay) class Heatmap_Image: def __init__(self, heatmap, min_val, max_val): self.min_val = min_val self.max_val = max_val x_size, y_size = heatmap.shape colormap = np.zeros((y_size, x_size, 3), dtype=np.uint8) for y in range(y_size): for x in range(x_size): colormap[y][x] = self._val_to_color(heatmap[y][x]) self.image = Image.fromarray(colormap, 'RGB') def _val_to_color(self, value): normalized_value = (value - self.min_val) / (self.max_val - self.min_val) hsv_color = (0.66 - 0.66 * normalized_value, 1.0, 1.0) # Blue to Red rgb_color = colorsys.hsv_to_rgb(*hsv_color) scaled_rgb_color = tuple(int(c * 255) for c in rgb_color) return scaled_rgb_color def show(self): self.image.show() def save(self, file): self.image.save(file) """ sim = Heatmap_Simulator() img = sim.export() img.save("img_0.jpg") for i in range(1,20): sim.simulate(100) img = sim.export() img.save(f"img_{i}.jpg") """