1. What is Image Resolution Scaling?

Image resolution scaling is the process of increasing or decreasing the number of pixels in an image while maintaining its aspect ratio. This calculator helps determine the new resolution after applying a scaling factor.

2. How Does the Calculator Work?

The calculator uses the scaling formula:

Where:

• \( \text{Original Resolution} \) — The initial pixel dimension of the image
• \( \text{Scaling Factor} \) — The multiplier for resizing (e.g., 0.5 for 50% reduction, 2.0 for 200% enlargement)

Explanation: The formula linearly scales the resolution by multiplying the original dimensions with the scaling factor.

3. Importance of Resolution Scaling

Details: Proper resolution scaling is crucial for maintaining image quality when resizing for different displays, print sizes, or storage requirements.

4. Using the Calculator

Tips: Enter the original resolution in pixels and the scaling factor (values greater than 1 for enlargement, between 0 and 1 for reduction). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Does scaling affect image quality?
A: Yes, enlarging typically reduces sharpness while reducing size may lose detail. The algorithm used affects quality.

Q2: How is this different from DPI/PPI scaling?
A: This calculates actual pixel dimensions, while DPI/PPI relates to print density at a given physical size.

Q3: Should I scale up or down?
A: Generally better to scale down high-res images than to scale up low-res ones, to maintain quality.

Q4: What about non-integer scaling factors?
A: The calculator handles decimal factors, but final pixel dimensions should typically be whole numbers.

Q5: How does this relate to aspect ratio?
A: This calculator assumes maintaining aspect ratio. For non-uniform scaling, you'd need separate width/height factors.