OpenCV Notes

Color channels

• Hue: Measures the color of the pixel.
• Saturation: Measures the intensity of color of the pixel.
• Value: Measures the brighness of the pixel.

Hue range

• Red (0-60)
• Yellow (60-120)
• Green (120-180)
• Cyan (180-240)
• Blue (240-300)
• Magenta (300-360)

RGB Channels

• (0,0,0) is a black color.
• (255,0,0) is a pure red color.
• (0,255,0) is a pure green color.

 

Smoothing Functions

• Image Smoothing - convolving the image with a low-pass filter kernel. It is useful for removing noise
• Bilateral filter - replaces the intensity of each pixel with a weighted average of intensity values. cv.bilateralFilter() is highly effective in noise removal while keeping edges sharp

Color Codes

Mask for custom color range

Keep Thinking!!!!