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Image Histogram Calculation with OpenCV (Python)
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3. Histogram Calculation
Test histogram calculation with different images (vary contrast or brightnest of an image to see how different histogram looks)
The aim is to use OpenCV to calculate & draw histograms of images.
Read the explanation and pay attention to the required steps:
• Loading an image
• Splitting the image into its R, G and B planes or components.
• Calculating the Histogram of each channel plane
• Plotting the three histograms in a window
Once more, use your own test images and compare the histograms.
Question to discuss:
What does histogram of an image show? What can a histogram tell you about the image (visual content)?
Test histogram calculation with different images (vary contrast or brightnest of an image to see how different histogram looks)
The aim is to use OpenCV to calculate & draw histograms of images.
Read the explanation and pay attention to the required steps:
• Loading an image
• Splitting the image into its R, G and B planes or components.
• Calculating the Histogram of each channel plane
• Plotting the three histograms in a window
Once more, use your own test images and compare the histograms.
Question to discuss:
What does histogram of an image show? What can a histogram tell you about the image (visual content)?
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