[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify code snippets into one of the following categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']."}, {'role': 'user', 'content': 'Identify the single most appropriate category to which the provided code belongs. Provide your response as a single category label without any additional information, commentary, or personal opinions.\\nPython Code:dive1leveled = dive2.copy()\nfor x in range(width):\nfor y in range(height):\ndive1leveled[y][x][0] = min([dive2[y][x][0] * 1.3, 255])\ndive1leveled[y][x][1] = max([dive2[y][x][1] * 0.85, 0])\ndive1leveled[y][x][2] = min([dive2[y][x][2] * 1.1, 255])\nstripe = makeImageStripe([dive1, dive1leveled, dive1leveled])\nplotImage(dive2)\nplotImage(dive1leveled)'}, {'role': 'assistant', 'content': 'data_preprocessing'}]