"""
增強資料集
"""
from PIL import Image
from PIL import ImageEnhance
import os
import cv2
import numpy as np


def flip(root_path, img_name):  # 翻轉影象
    img = Image.open(os.path.join(root_path, img_name))
    filp_img = img.transpose(Image.FLIP_LEFT_RIGHT)
    # filp_img.save(os.path.join(root_path,img_name.split('.')[0] + '_flip.jpg'))
 

    return filp_img


def rotation(root_path, img_name):
    img = Image.open(os.path.join(root_path, img_name))
    rotation_img = img.rotate(20)  # 旋轉角度
    # rotation_img.save(os.path.join(root_path,img_name.split('.')[0] + '_rotation.jpg'))
    return rotation_img


def randomColor(root_path, img_name):  #
 
 隨機顏色
    """
    對影象進行顏色抖動
    :param image: PIL的影象image
    :return: 有顏色色差的影象image
    """
    image = Image.open(os.path.join(root_path, img_name))
    random_factor = np.random.randint(0, 31) / 10.  # 隨機因子
    color_image = ImageEnhance.Color(image).enhance(random_factor)  # 調整影象的飽和度
    random_factor = np.random.randint(10, 21) / 10.  #
 
 隨機因子
    brightness_image = ImageEnhance.Brightness(color_image).enhance(
        random_factor)  # 調整影象的亮度
    random_factor = np.random.randint(10, 21) / 10.  # 隨機因子
    contrast_image = ImageEnhance.Contrast(brightness_image).enhance(
        random_factor)  # 調整影象對比度
    random_factor = np.random.randint(0, 31) / 10.  # 隨機因子
    return ImageEnhance.Sharpness(contrast_image).enhance(
        random_factor)  # 調整影象銳度


def contrastEnhancement(root_path, img_name):  # 對比度增強
    image = Image.open(os.path.join(root_path, img_name))
    enh_con = ImageEnhance.Contrast(image)
    contrast = 1.5
    image_contrasted = enh_con.enhance(contrast)
    return image_contrasted


def brightnessEnhancement(root_path, img_name):  # 亮度增強
    image = Image.open(os.path.join(root_path, img_name))
    enh_bri = ImageEnhance.Brightness(image)
    brightness = 1.5
    image_brightened = enh_bri.enhance(brightness)
    return image_brightened


def colorEnhancement(root_path, img_name):  # 顏色增強
    image = Image.open(os.path.join(root_path, img_name))
    enh_col = ImageEnhance.Color(image)
    color = 1.5
    image_colored = enh_col.enhance(color)
    return image_colored


def main():
    imageDir = r""  # 要改變的圖片的路徑資料夾
    maskDir = r""
    saveDir = r""  # 要儲存的圖片的路徑資料夾
    
    # 資料集-image增強
    # for name in os.listdir(imageDir):
    #     saveName = name[:-4] + "id.jpg"
    #     image = Image.open(os.path.join(imageDir, name))
    #     image.save(os.path.join(saveDir, 'id', saveName))
    #
    #     saveName = name[:-4] + "be.jpg"
    #     saveImage = brightnessEnhancement(imageDir, name)
    #     saveImage.save(os.path.join(saveDir, 'be', saveName))
    #
    #     saveName = name[:-4] + "fl.jpg"
    #     saveImage = flip(imageDir, name)
    #     saveImage.save(os.path.join(saveDir,'fl', saveName))
    #
    #     saveName = name[:-4] + "ro.jpg"
    #     saveImage = rotation(imageDir, name)
    #     saveImage.save(os.path.join(saveDir,'ro', saveName))
    #
    #     saveName = name[:-4] + "co.jpg"
    #     saveImage = colorEnhancement(imageDir, name)
    #     saveImage.save(os.path.join(saveDir, 'co', saveName))
    #
    #     saveName = name[:-4] + "ra.jpg"
    #     saveImage = randomColor(imageDir, name)
    #     saveImage.save(os.path.join(saveDir, 'ra', saveName))
        
    # 資料集-mask增強
    for part in os.listdir(maskDir):
        part_path = os.path.join(maskDir, part)
        for name in os.listdir(part_path):
            
            # 原圖
            addname = 'yuan'
            image = Image.open(os.path.join(part_path, name))
            image.save(os.path.join(saveDir, part, addname, name))
        
            # 翻轉圖
            addname = 'flip'
            saveImage = flip(part_path, name)
            saveImage.save(os.path.join(saveDir, part, addname, name))
        
            # 轉動角度
            addname = 'rotation'
            saveImage = rotation(part_path, name)
            saveImage.save(os.path.join(saveDir, part, addname, name))
        

if __name__ == '__main__':
    main()