RGB versus HSV color spaces

WHAT IT TESTS: whether you understand why decoupling color from intensity matters. ANSWER OUTLINE: RGB encodes color as additive red, green, blue intensities where brightness is entangled across all three; HSV separates hue (which color), saturation (how pure), and value (how bright). Because hue is largely invariant to lighting changes, HSV excels at color-based segmentation and thresholding under varying illumination. RED FLAG: thinking the spaces hold different colors, or that RGB thresholding is equally robust to shadows and highlights.