Noise Analyzer
Select Image
Drop image here or click to select
Sample Size: 64px
Larger samples are more accurate but slower
Visualization
Heatmap Channel:
Camera Type
Typically handles noise well up to ISO 6400-12800
ISO Comparison Mode
Add multiple images shot at different ISO values to compare noise levels.
Drop images for ISO comparison or click to select
Analysis Results
Select an image to analyze noise levels
Green = Low noise, Yellow = Medium, Red = High noise
ISO Comparison
Understanding Noise
- Luminance noise: Grainy texture, like film grain
- Chroma noise: Random color speckles, more objectionable
- SNR: Higher is better (more signal, less noise)
- Causes: High ISO, long exposures, small sensors, underexposure
- Solutions: Lower ISO, better lighting, noise reduction software