Which tone curve type allows adjusting specific regions of the curve?

Which tone curve type allows adjusting specific regions of the curve?

• A. Point Curve
• B. Parametric Tone Curve
• C. Hue-Saturation Curve
• D. Luminance Curve

Answer: (B)

Targeting specific brightness ranges in a tone curve is what this question is about. The Parametric Tone Curve provides sliders for shadows, midtones, and highlights, allowing precise adjustments to those regions without altering the rest of the curve. This region-specific control is ideal when you want to brighten only the shadows or deepen contrast in the midtones, for example, while keeping other tonal areas intact. A Point Curve requires dragging individual points across the curve, which reshapes tonality more globally and is less about isolating predefined tonal regions. Hue-Saturation Curve changes color information, not where in the tonal range the adjustment applies. Luminance Curve focuses on brightness but generally lacks the targeted region controls that a parametric curve offers.

Targeting specific brightness ranges in a tone curve is what this question is about. The Parametric Tone Curve provides sliders for shadows, midtones, and highlights, allowing precise adjustments to those regions without altering the rest of the curve. This region-specific control is ideal when you want to brighten only the shadows or deepen contrast in the midtones, for example, while keeping other tonal areas intact. A Point Curve requires dragging individual points across the curve, which reshapes tonality more globally and is less about isolating predefined tonal regions. Hue-Saturation Curve changes color information, not where in the tonal range the adjustment applies. Luminance Curve focuses on brightness but generally lacks the targeted region controls that a parametric curve offers.