Katbin

from PIL import Image
import os
import shutil
import smartcrop

src_dir = input("source: ")
dst_dir = f"some_folder/{src_dir}" # this folder must already exist

quality_val = 100

resolutions = [(1024, 1024), (896, 1152), (832, 1216), (768, 1344), (640, 1536), (1152, 896), (1216, 832), (1344, 768), (1536, 640)]

cropper = smartcrop.SmartCrop()

def resize_and_crop(img, size):
    img_ratio = img.size[0] / float(img.size[1])
    ratio = size[0] / float(size[1])

    if ratio > img_ratio:
        img = img.resize((size[0], int(size[0] * img.size[1] / img.size[0])), Image.LANCZOS)
        result = cropper.crop(img, width=size[0], height=size[1])
        box = (result['top_crop']['x'],result['top_crop']['y'],result['top_crop']['width'] + result['top_crop']['x'],result['top_crop']['height'] + result['top_crop']['y'])
        img = img.crop(box)
    elif ratio < img_ratio:
        img = img.resize((int(size[1] * img.size[0] / img.size[1]), size[1]), Image.LANCZOS)
        result = cropper.crop(img, width=size[0], height=size[1])
        box = (result['top_crop']['x'],result['top_crop']['y'],result['top_crop']['width'] + result['top_crop']['x'],result['top_crop']['height'] + result['top_crop']['y'])
        img = img.crop(box)
    else :
        img = img.resize((size[0], size[1]), Image.LANCZOS)
    return img

def closest(lst, K):
     return lst[min(range(len(lst)), key = lambda i: abs(lst[i][0]/lst[i][1]-K))]

for filename in os.listdir(src_dir):
    if filename.endswith(('.jpg', '.png', '.jpeg')):  # add file types as needed
        img = Image.open(os.path.join(src_dir, filename))
        closest_res = closest(resolutions, img.size[0]/img.size[1])
        new_img = resize_and_crop(img, closest_res)
        if new_img.mode == 'RGBA':
            new_img = new_img.convert('RGB')
        fname = os.path.splitext(filename)[0]
        new_filename = f'{fname}.jpg'
        new_img.save(os.path.join(dst_dir, new_filename), quality=quality_val)
        txt_file = f'{fname}.txt'
        shutil.copyfile(os.path.join(src_dir, txt_file), os.path.join(dst_dir, txt_file))