Method image_to_byte_array

StegaPy/util/image_util.py:111–128

将PIL图像转换为字节数组

(image, filename=None, format='PNG')

    
    @staticmethod
    def image_to_byte_array(image, filename=None, format='PNG'):
        """将PIL图像转换为字节数组"""
        try:
            # 根据文件名确定格式
            if filename:
                ext = filename.rsplit('.', 1)[-1].lower()
                if ext in ['jpg', 'jpeg']:
                    format = 'JPEG'
                elif ext == 'png':
                    format = 'PNG'
                elif ext == 'bmp':
                    format = 'BMP'
            
            output = io.BytesIO()
            image.save(output, format=format)
            return output.getvalue()
        except Exception as e:
            raise Exception(f"无法保存图像: {str(e)}")
    
    @staticmethod
    def generate_random_image(num_pixels):