Advanced DSP Design Lab

Real-Time LDR Image Enhancement CameraSystem

• System Goal:
  • To build up a camera system that can be used in a poor-exposed environment. This camera system could extract the detail in the low density areas while maintaining the color information with TI TMS320C6416.
• Steps of our algorithm:
  • for luminance channel:
    1. Performing Image adjustment which extends luminance's histogram.
    2. Applying Spatial and temporal bilateral filter to filter out the original noise.
    3. Applying tonal adjustment to enhance images.
    4. System output.
  • for chrominance channel:
    • Applying Gaussian filter to filter out noise.
• Challenging:
  1. Computation loading.
  2. Fixed-pointg DSP Processor
• Solution:
  • Using tables and converting floating-point ocmputation into fixed-point computation.
• Final Frame Rate:
  • 2 frames per sec.
• Image Output:

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