import os
from PIL import Image
dir = "G:\\dev\\cs-rkbm\\rskzc2025\\yuan2\\新建文件夹0727\\新建文件夹"
dir = "G:\\dev\\cs-rkbm\\Rsbm_rpt\\zp"
dir = "G:\\dev\\cs-rkbm\\zperr"
for f in os.listdir(dir):if os.path.isfile(os.path.join(dir,f)):img = Image.open(os.path.join(dir,f))if img.format != "JPEG":print( f + " " + img.format)if img.mode != "RGB":print( f + " not RGB " + img.mode )def png_to_jpg(input_path, output_path, quality=95):"""将PNG图片转换为JPG格式参数:input_path (str): 输入的PNG文件路径output_path (str): 输出的JPG文件路径quality (int): JPG质量，1-100，默认95"""try:# 打开PNG图像image = Image.open(input_path)# 如果图像有alpha通道(透明度)，创建一个白色背景并合并if image.mode in ('RGBA', 'LA'):background = Image.new('RGB', image.size, (255, 255, 255))background.paste(image, mask=image.split()[-1]) # 使用alpha通道作为掩码image = background# 保存为JPGimage.save(output_path, 'JPEG', quality=quality)print(f"转换成功: {input_path} -> {output_path}")except Exception as e:print(f"转换失败: {e}")def jpgcymk_to_jpg(input_path, output_path, quality=95):"""将PNG图片转换为JPG格式参数:input_path (str): 输入的PNG文件路径output_path (str): 输出的JPG文件路径quality (int): JPG质量，1-100，默认95"""try:# 打开PNG图像image = Image.open(input_path)# 如果图像有alpha通道(透明度)，创建一个白色背景并合并if image.mode in ('CMYK'):# 保存为JPGimage.save(output_path, 'JPEG', quality=quality)print(f"转换成功: {input_path} -> {output_path}")except Exception as e:print(f"转换失败: {e}")
def bmp_to_jpg(input_file, output_file):# 打开BMP文件with Image.open(input_file) as im:# 将BMP文件转换为RGB模式rgb_im = im.convert('RGB')# 将RGB模式的图像保存为JPEG文件rgb_im.save(output_file, 'JPEG')
