{
  "context": "This criteria evaluates how well the engineer uses the imutils package to adjust brightness and contrast in images. The focus is on whether they identify and correctly use the adjust_brightness_contrast function from imutils rather than implementing adjustments manually or using lower-level OpenCV functions.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Uses imutils import",
      "description": "The solution imports the imutils package to access its convenience functions",
      "max_score": 10
    },
    {
      "name": "Uses adjust_brightness_contrast",
      "description": "The solution calls imutils.adjust_brightness_contrast() function instead of implementing brightness/contrast adjustment manually or using cv2.addWeighted directly",
      "max_score": 40
    },
    {
      "name": "Correct brightness parameter",
      "description": "The brightness parameter is passed correctly to adjust_brightness_contrast with the expected semantics (0 = no change, positive = brighter, negative = darker)",
      "max_score": 15
    },
    {
      "name": "Correct contrast parameter",
      "description": "The contrast parameter is passed correctly to adjust_brightness_contrast with the expected semantics (0 = no change, positive = more contrast, negative = less contrast)",
      "max_score": 15
    },
    {
      "name": "Correct function signature",
      "description": "The adjust_brightness_contrast function is called with the correct signature: adjust_brightness_contrast(image, brightness, contrast)",
      "max_score": 10
    },
    {
      "name": "Image I/O integration",
      "description": "The solution properly integrates adjust_brightness_contrast with OpenCV's imread/imwrite for loading and saving images",
      "max_score": 10
    }
  ]
}