how can i find direction of light in image?

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vivek mahale
vivek mahale on 4 Apr 2016
Answered: BhaTTa on 10 Sep 2024
how can i find direction of light in image?

Answers (1)

BhaTTa
BhaTTa on 10 Sep 2024
@vivek mahale, detecting the direction of light in an image is a complex task that typically involves analyzing shading, shadows, and highlights. Here are some general approaches you can take in MATLAB to estimate the light direction:
Using Shading and Shadows
If the image contains objects with noticeable shadows or shading, you can use these features to infer the light direction. The following steps outline a basic approach:
  1. Convert Image to Grayscale: This simplifies the analysis by focusing on intensity rather than color.
  2. Edge Detection: Use edge detection to identify boundaries and features in the image.
  3. Analyze Shading: Look for gradients in intensity that indicate the direction of light.
  4. Shadow Analysis: If shadows are present, the direction of the shadow can help infer the light source's direction.

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