Luminance Noise Luminance noise, also known as luminance grain or monochromatic noise, refers to random variations in brightness or intensity that appear as unwanted speckles or graininess in digital images. Luminance noise is caused by electronic interference, thermal noise, or sensor limitations during image capture and processing. It is more noticeable in underexposed areas of an image or images captured at high ISO sensitivity settings, where the signal-to-noise ratio is lower.
Luminance noise can degrade image quality, reducing sharpness, detail, and tonal range, particularly in shadow areas and smooth gradients. In post-processing, photographers can use noise reduction techniques and software tools to reduce luminance noise while preserving image detail and clarity. Common noise reduction methods include smoothing algorithms, wavelet denoising, and selective noise reduction targeting specific tonal ranges or color channels. |
Upload Your Photos
Ideas Gallery
How it works? 
Artwork Scanning
Canvas Prints
Fine Art Printing
Framed Prints
Plaque Mounting
Fabric Printing
Metal & Wood Prints
Plexi Face Mount
Print & Dry Mounting
Cityscape Prints
Greeting Cards
Classical Art Prints
AGP Galleries
Laser Engraving & Cut
Coffee Mug Prints
Acrylic Blocks
T-shirt Prints
Handmade Oil Paintings
All Products
Custom Picture Frames
Canvas Floaters
Wood Frames
Metal Frames
Canvas Transfer
Custom Stretcher Frames
Custom cut MatBoards
Custom Plexi Cuts
Custom Size Boards
Pre-Cut Boards
Framing Hardware
Custom Artist Canvas
Custom Size Wood Panels
Canvas Stretching Services
Resources
DoveTail Guide
Aluminum Bars
Wood Panels
Stretcher Bars
Easels & Display
Resin Coatings
Cork Rolls/Sheets
Resin On Canvas
Price Calculator
Gift Certificates
Collages on Canvas
Word Cloud Design
Photo Mosaics
Image Effects
FAQs
Pro Accounts
Artist Gallery Program
Corporate Art
Contact KeenART
Turnaround time
Shipping
Rush Orders
