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Running
on
Zero
| from PIL import Image, ImageOps | |
| import numpy as np | |
| import cv2 | |
| def canny_process(image_path, threshold1, threshold2): | |
| # 画像を開き、RGBA形式に変換して透過情報を保持 | |
| img = Image.open(image_path) | |
| img = img.convert("RGBA") | |
| canvas_image = Image.new('RGBA', img.size, (255, 255, 255, 255)) | |
| # 画像をキャンバスにペーストし、透過部分が白色になるように設定 | |
| canvas_image.paste(img, (0, 0), img) | |
| # RGBAからRGBに変換し、透過部分を白色にする | |
| image_pil = canvas_image.convert("RGB") | |
| image_np = np.array(image_pil) | |
| # グレースケール変換 | |
| gray = cv2.cvtColor(image_np, cv2.COLOR_RGB2GRAY) | |
| # Cannyエッジ検出 | |
| edges = cv2.Canny(gray, threshold1, threshold2) | |
| canny = Image.fromarray(edges) | |
| return canny | |
| def resize_image_aspect_ratio(image): | |
| # 元の画像サイズを取得 | |
| original_width, original_height = image.size | |
| # アスペクト比を計算 | |
| aspect_ratio = original_width / original_height | |
| # 標準のアスペクト比サイズを定義 | |
| sizes = { | |
| 1: (1024, 1024), # 正方形 | |
| 4/3: (1152, 896), # 横長画像 | |
| 3/2: (1216, 832), | |
| 16/9: (1344, 768), | |
| 21/9: (1568, 672), | |
| 3/1: (1728, 576), | |
| 1/4: (512, 2048), # 縦長画像 | |
| 1/3: (576, 1728), | |
| 9/16: (768, 1344), | |
| 2/3: (832, 1216), | |
| 3/4: (896, 1152) | |
| } | |
| # 最も近いアスペクト比を見つける | |
| closest_aspect_ratio = min(sizes.keys(), key=lambda x: abs(x - aspect_ratio)) | |
| target_width, target_height = sizes[closest_aspect_ratio] | |
| # リサイズ処理 | |
| resized_image = image.resize((target_width, target_height), Image.LANCZOS) | |
| return resized_image | |
| def base_generation(size, color): | |
| canvas = Image.new("RGBA", size, color) | |
| return canvas |