Increase photo resolution: use a higher-resolution source image or rescan at a higher DPI
Improve focus: refocus during capture; use manual focus for critical subjects
Use proper lighting: brighten the scene or add light to reduce noise
Stabilize the camera: use a tripod, brace your hands, or enable image stabilization
Reduce camera shake: use faster shutter speeds when possible
Use lower ISO: lower ISO settings to reduce noise
Use wider aperture carefully: use the widest practical aperture to gather more light (avoid extreme underexposure)
Use slower shutter only with stabilization: if lowering shutter speed, ensure tripod/IS is active
Shoot in RAW: edit noise and detail more effectively than with JPEG
Apply noise reduction in editing software: start with light noise reduction and avoid over-smoothing
Use selective noise reduction: reduce noise in flat areas more than in edges/details
Enhance detail with sharpening: apply mild sharpening after denoising
Use AI upscaling: upscale with an AI tool that preserves edges and reduces grain
Correct exposure: lift shadows carefully; avoid heavy shadow recovery that amplifies grain
Remove harsh color noise: use color noise reduction settings separately from luminance noise
Calibrate white balance: correct color casts to prevent grain-like artifacts
Use lens/camera calibration: apply lens corrections and remove vignetting if present
Avoid repeated compression: re-export once, use high-quality settings, and minimize recompression
If scanning: clean the scanner, scan at higher DPI, and use proper contrast/levels before upscaling
Try different denoise profiles: test a few presets and compare at 100% zoom
Export at appropriate size: avoid upscaling beyond what the source supports
Capture multiple shots: use burst and combine with noise-reduction/stacking (where available)